:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #70BCEA;
  --accent-rgb: 112, 188, 234;
  --accent-hover: #59B0E5;
  --btn-primary-bg: var(--accent);
  --btn-primary-text: #ffffff;
  --btn-primary-hover-bg: #59B0E5;
  --btn-primary-active-bg: #4aa0d9;
  --btn-primary-border: transparent;
  --btn-focus-ring: rgba(var(--accent-rgb), 0.22);
  --layout-pad: 16px;
  --sidebar-radius: 16px;
  --sidebar-shadow: 0 10px 30px rgba(17, 24, 39, 0.08);
  --danger: #dc2626;
  --success: #83B14B;
  --btn-secondary-bg: #111827;
  --btn-secondary-text: #ffffff;
  --btn-secondary-hover-bg: #0b1220;
  --segmented-bg: rgba(17, 24, 39, 0.04);
  --segmented-border: rgba(17, 24, 39, 0.08);
  --segmented-active-bg: var(--card);
  --segmented-active-shadow: 0 8px 18px rgba(17, 24, 39, 0.08);
  --segmented-text: var(--muted);
  --segmented-active-text: var(--text);
  --selection-bg: rgba(var(--accent-rgb), 0.25);
  --selection-text: var(--text);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --bg: #0b1220;
    --card: #0f172a;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --border: #1f2a3b;
    --accent: #70BCEA;
    --accent-rgb: 112, 188, 234;
    --accent-hover: #59B0E5;
    --sidebar-shadow: 0 12px 34px rgba(0, 0, 0, 0.45);
    --btn-primary-text: #0b1220;
    --btn-primary-hover-bg: #59B0E5;
    --btn-primary-active-bg: #4aa0d9;
    --btn-primary-border: rgba(255, 255, 255, 0.12);
    --btn-focus-ring: rgba(var(--accent-rgb), 0.28);
    --btn-secondary-bg: rgba(148, 163, 184, 0.14);
    --btn-secondary-text: #e5e7eb;
    --btn-secondary-hover-bg: rgba(148, 163, 184, 0.22);
    --segmented-bg: rgba(148, 163, 184, 0.1);
    --segmented-border: rgba(148, 163, 184, 0.16);
    --segmented-active-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
    --selection-bg: rgba(var(--accent-rgb), 0.35);
    --selection-text: #0b1220;
    --danger: #dc2626;
    --success: #83B14B;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --card: #0f172a;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #1f2a3b;
  --accent: #70BCEA;
  --accent-rgb: 112, 188, 234;
  --accent-hover: #59B0E5;
  --sidebar-shadow: 0 12px 34px rgba(0, 0, 0, 0.45);
  --btn-primary-text: #0b1220;
  --btn-primary-hover-bg: #59B0E5;
  --btn-primary-active-bg: #4aa0d9;
  --btn-primary-border: rgba(255, 255, 255, 0.12);
  --btn-focus-ring: rgba(var(--accent-rgb), 0.28);
  --btn-secondary-bg: rgba(148, 163, 184, 0.14);
  --btn-secondary-text: #e5e7eb;
  --btn-secondary-hover-bg: rgba(148, 163, 184, 0.22);
  --segmented-bg: rgba(148, 163, 184, 0.1);
  --segmented-border: rgba(148, 163, 184, 0.16);
  --segmented-active-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  --selection-bg: rgba(var(--accent-rgb), 0.35);
  --selection-text: #0b1220;
  --danger: #dc2626;
  --success: #83B14B;
}

::selection,
*::selection,
input::selection,
textarea::selection,
[contenteditable]::selection {
  background-color: var(--selection-bg) !important;
  color: var(--selection-text) !important;
}

::-moz-selection,
*::-moz-selection,
input::-moz-selection,
textarea::-moz-selection,
[contenteditable]::-moz-selection {
  background-color: var(--selection-bg) !important;
  color: var(--selection-text) !important;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  padding: var(--layout-pad);
  gap: var(--layout-pad);
}

.layout.lesson-layout {
  grid-template-columns: 260px 1fr 320px;
}

@media (max-width: 1280px) {
  .layout.lesson-layout {
    grid-template-columns: 260px 1fr;
  }
  .layout.lesson-layout .sidebar.right-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 360px;
    max-width: 92vw;
    border-radius: 0;
    border-left: 1px solid var(--border);
    transform: translateX(110%);
    transition: transform 160ms ease-out;
    z-index: 60;
    max-height: none;
    overflow: auto;
  }
}

.lesson-nav-toggle {
  display: none;
  gap: 8px;
  align-items: center;
}

@media (max-width: 1280px) {
  .lesson-nav-toggle {
    display: inline-flex;
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 70;
  }
  body.lesson-nav-open .layout.lesson-layout .sidebar.right-nav {
    transform: translateX(0);
  }
  .lesson-nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(17, 24, 39, 0.4);
    z-index: 55;
  }
  body.lesson-nav-open .lesson-nav-backdrop {
    display: block;
  }
}

@media (min-width: 1281px) {
  .lesson-nav-toggle {
    display: none !important;
    position: static;
    top: auto;
    right: auto;
  }
}

.sidebar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--sidebar-radius);
  box-shadow: var(--sidebar-shadow);
  padding: 16px;
}

.sidebar:not(.right-nav) {
  display: flex;
  flex-direction: column;
  position: sticky;
  top: var(--layout-pad);
  max-height: calc(100vh - (2 * var(--layout-pad)));
  overflow: auto;
}

.sidebar:not(.right-nav) .nav {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
}

@keyframes zc-skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.zc-skeleton {
  background-image: linear-gradient(
    90deg,
    rgba(107, 114, 128, 0.10) 0%,
    rgba(107, 114, 128, 0.20) 50%,
    rgba(107, 114, 128, 0.10) 100%
  );
  background-size: 200% 100%;
  animation: zc-skeleton 1.1s ease-in-out infinite;
}

.course-card.course-card-skeleton {
  pointer-events: none;
}

.course-skeleton-cover {
  height: 220px;
  border-radius: 14px 14px 12px 12px;
}

.course-skeleton-line {
  height: 12px;
  border-radius: 10px;
}

.course-skeleton-line.w-35 { width: 35%; }
.course-skeleton-line.w-55 { width: 55%; }
.course-skeleton-line.w-70 { width: 70%; }
.course-skeleton-line.w-90 { width: 90%; }

.course-skeleton-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.course-skeleton-pill {
  height: 10px;
  width: 22%;
  border-radius: 999px;
}

.my-courses-greeting-skeleton {
  display: inline-block;
  height: 14px;
  width: min(520px, 65vw);
  border-radius: 10px;
  vertical-align: middle;
}

.user-home-greeting.user-home-greeting-skeleton {
  display: inline-block;
  height: 26px;
  width: min(360px, 52vw);
  border-radius: 14px;
  vertical-align: middle;
}

html:not([data-zc-ui-ready="1"]) .sidebar:not(.right-nav) .nav {
  position: relative;
  pointer-events: none;
}

html:not([data-zc-ui-ready="1"]) .sidebar:not(.right-nav) .nav::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 16px;
  background-image: linear-gradient(
    90deg,
    rgba(107, 114, 128, 0.10) 0%,
    rgba(107, 114, 128, 0.20) 50%,
    rgba(107, 114, 128, 0.10) 100%
  );
  background-size: 200% 100%;
  animation: zc-skeleton 1.1s ease-in-out infinite;
}

html:not([data-zc-ui-ready="1"]) .sidebar:not(.right-nav) .nav > * {
  opacity: 0;
}

html:not([data-zc-ui-ready="1"]) .steps .step-tab {
  color: transparent !important;
  background-image: linear-gradient(
    90deg,
    rgba(107, 114, 128, 0.12) 0%,
    rgba(107, 114, 128, 0.22) 50%,
    rgba(107, 114, 128, 0.12) 100%
  );
  background-size: 200% 100%;
  animation: zc-skeleton 1.1s ease-in-out infinite;
  pointer-events: none;
}

html:not([data-zc-ui-ready="1"]) .steps .step-tab {
  border-color: rgba(107, 114, 128, 0.15);
}

.sidebar.right-nav {
  position: sticky;
  top: var(--layout-pad);
  max-height: calc(100vh - (2 * var(--layout-pad)));
  overflow: auto;
}

.sidebar-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 10px;
}

.sidebar-user-meta {
  min-width: 0;
  display: grid;
  gap: 2px;
  padding: 6px 0;
}

.sidebar-user-name {
  font-weight: 700;
  font-size: 13px;
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 11px;
  line-height: 1.15;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-footer {
  padding: 6px 8px 0 8px;
}

.sidebar-footer-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-footer-brand {
  font-weight: 800;
  letter-spacing: 0.2px;
  font-size: 14px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-zcourse-logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  flex: none;
  color: var(--accent);
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.14), rgba(var(--accent-rgb), 0.03));
  border: 1px solid rgba(var(--accent-rgb), 0.18);
}

.sidebar-zcourse-logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  display: block;
}

.sidebar-footer-caption {
  margin-top: 8px;
  font-size: 11px;
  line-height: 1.25;
  color: var(--muted);
}

.sidebar-avatar {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
  display: grid;
  place-items: center;
  flex: none;
}

.sidebar-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sidebar-avatar-fallback {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
}

.right-nav-head {
  padding: 6px 8px 12px 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.right-nav-title {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.right-nav-subtitle {
  margin-top: 6px;
  font-size: 13px;
}

.right-nav-body {
  display: grid;
  gap: 12px;
}

.course-nav-section {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  overflow: hidden;
}

.course-nav-section > summary {
  padding: 10px 12px;
  font-weight: 700;
  border-radius: 0;
}

.course-nav-section[open] > summary {
  background: rgba(17, 24, 39, 0.02);
}

.course-nav-lessons {
  display: grid;
  gap: 6px;
  padding: 10px 10px 12px 10px;
  border-top: 1px solid var(--border);
}

.course-nav-link {
  display: grid;
  gap: 2px;
  padding: 8px 10px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid transparent;
}

.course-nav-link:hover {
  background: var(--bg);
}

.course-nav-link.active {
  border-color: rgba(var(--accent-rgb), 0.35);
  background: rgba(var(--accent-rgb), 0.08);
  color: var(--accent);
}

.course-nav-link-title {
  font-size: 14px;
  font-weight: 600;
}

.course-nav-link-meta {
  font-size: 12px;
  color: var(--muted);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
  padding: 8px 10px;
  border-radius: 8px;
}

.nav {
  margin-top: 12px;
}

.nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 10px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
}

.nav a .nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}

.nav a.active .nav-icon {
  opacity: 1;
}

.nav a .nav-icon-external {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-left: auto;
  opacity: 0.55;
}

.nav a.has-unread::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  margin-left: auto;
  box-shadow: 0 0 0 2px var(--card);
}

.nav a:hover {
  background: var(--bg);
}

.nav a.active {
  background: rgba(var(--accent-rgb), 0.08);
  color: var(--accent);
}

.role-preview {
  margin-top: 10px;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(var(--accent-rgb), 0.04);
}

.role-preview-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.role-preview-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.role-preview-select {
  width: 100%;
  padding: 10px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 13px;
}

.role-preview-reset {
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  white-space: nowrap;
}

details {
  border-radius: 10px;
}

summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 10px;
  border-radius: 8px;
  color: var(--text);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav summary .nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}

summary::-webkit-details-marker {
  display: none;
}

details[open] > summary {
  background: var(--bg);
}

.nav-group {
  display: grid;
  gap: 6px;
  padding: 6px 0 10px 10px;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 14px 0;
  width: 100%;
  grid-column: 1 / -1;
}

.logout {
  color: var(--danger);
}

.avatar-fallback {
  font-size: 28px;
  font-weight: 700;
  color: var(--muted);
}

.avatar-btn {
  width: 96px;
  height: 96px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 0;
  cursor: pointer;
  display: grid;
  place-items: center;
  overflow: hidden;
  flex: none;
  position: relative;
}

.avatar-btn:hover {
  background: rgba(var(--accent-rgb), 0.06);
}

.avatar-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-btn:hover img,
.avatar-btn:hover .avatar-fallback {
  filter: blur(1.5px);
}

.avatar-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  background: rgba(17, 24, 39, 0.35);
  color: #fff;
  opacity: 0;
  transition: opacity 0.2s;
}

.avatar-overlay-btn {
  border: 0;
  background: transparent;
  color: #fff;
  width: 34px;
  height: 34px;
  padding: 0;
  display: grid;
  place-items: center;
  cursor: pointer;
  font: inherit;
  font-size: 22px;
  line-height: 1;
}

.avatar-overlay-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 12px;
}

.avatar-btn:hover .avatar-overlay {
  opacity: 1;
}

.account-block {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.account-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
}

.account-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.profile-value {
  font-size: 14px;
  font-weight: 600;
}

.profile-value.profile-value-skeleton {
  display: inline-block;
  height: 14px;
  width: min(240px, 48vw);
  border-radius: 10px;
  vertical-align: middle;
}

.avatar-btn.avatar-btn-skeleton {
  border-color: rgba(107, 114, 128, 0.15);
  background: transparent;
}

.profile-email-status {
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

.profile-email-status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.profile-email-status-icon svg {
  width: 100%;
  height: 100%;
}

.profile-email-status.is-verified {
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.12);
  color: rgba(22, 163, 74, 1);
}

[data-theme='dark'] .profile-email-status.is-verified {
  color: #bbf7d0;
}

.profile-email-status.is-unverified {
  border-color: rgba(251, 191, 36, 0.35);
  background: rgba(251, 191, 36, 0.12);
  color: rgba(161, 98, 7, 1);
}

[data-theme='dark'] .profile-email-status.is-unverified {
  color: #fde68a;
}

.profile-email-label-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.profile-email-status-by-label {
  margin-top: 0;
  padding: 0;
  border: none;
  background: transparent;
}

.profile-email-status-by-label .profile-email-status-icon {
  width: 15px;
  height: 15px;
}

.main {
  padding: 22px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}

.card.card-plain {
  background: transparent;
  border: none;
  padding: 0;
}

.cards {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.cards.courses-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 1200px) {
  .cards.courses-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.catalog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0 6px;
  border-top: 1px solid var(--border);
  margin-top: 14px;
}

.catalog-search {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 12px;
  padding: 12px 14px;
}

.catalog-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.catalog-sections {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 0 2px;
}

.catalog-section-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 13px;
}

.catalog-section-chip:hover {
  background: var(--bg);
}

.catalog-block {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.catalog-block-last {
  padding-bottom: 4px;
}

.catalog-block-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.catalog-block-title {
  margin: 0;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.catalog-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
  display: grid;
  grid-template-rows: 220px 1fr;
  min-width: 0;
}

.catalog-card-compact {
  grid-template-rows: 180px 1fr;
}

.catalog-card-media {
  position: relative;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  padding: 10px;
}

.catalog-card-media-inner {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.18);
  background-size: cover;
  background-position: center;
}

[data-theme='light'] .catalog-card-media-inner {
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.08);
}

.catalog-card-badge {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(17, 24, 39, 0.5);
  color: #fff;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.2px;
}

.catalog-card-body {
  padding: 12px 14px 14px;
  display: grid;
  gap: 10px;
  min-width: 0;
}

.catalog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.catalog-card-price {
  font-weight: 800;
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
}

.catalog-card-title {
  font-weight: 800;
  line-height: 1.25;
}

.catalog-card-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.catalog-card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.user-home {
  display: grid;
  gap: 14px;
}

.user-home-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.user-home-greeting {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -0.2px;
}

.user-home-subtitle {
  max-width: 720px;
}

.resume-inline {
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  display: grid;
  gap: 2px;
}

.resume-inline-title {
  font-weight: 900;
  letter-spacing: -0.1px;
}

.resume-inline-meta {
  font-size: 13px;
}

.resume-inline-compact {
  margin-top: 0;
  padding: 8px 10px;
}

.resume-inline-compact .resume-inline-title {
  font-size: 13px;
}

.resume-inline-compact .resume-inline-meta {
  font-size: 12px;
}

.user-home-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.user-home-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 14px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.user-home-main {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.user-home-aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.user-home-block {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
}

.user-home-block-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.user-home-block-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
}

.learn-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.learn-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  overflow: hidden;
  display: grid;
  grid-template-rows: 220px 1fr;
  min-width: 0;
  transition: box-shadow 150ms ease, transform 150ms ease, border-color 150ms ease;
}

.learn-card:hover {
  border-color: rgba(96, 165, 250, 0.28);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.12);
  transform: translateY(-1px);
}

.learn-card-compact {
  grid-template-rows: 180px 1fr;
}

.learn-card-media {
  position: relative;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  padding: 10px;
}

.learn-card-media.full-bleed {
  padding: 0;
  background: transparent;
  border-bottom: none;
}

.learn-card-media.full-bleed .learn-card-frame {
  border-radius: 0;
  border: none;
  box-shadow: none;
}

.learn-card-frame {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  background-size: cover;
  background-position: center;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.frame-blue {
  background-image: linear-gradient(135deg, rgba(59, 130, 246, 0.55), rgba(16, 185, 129, 0.35)),
    radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0) 58%);
}

.frame-purple {
  background-image: linear-gradient(135deg, rgba(244, 63, 94, 0.5), rgba(168, 85, 247, 0.35)),
    radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0) 60%);
}

.frame-sky {
  background-image: linear-gradient(135deg, rgba(14, 165, 233, 0.5), rgba(245, 158, 11, 0.35)),
    radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0) 60%);
}

[data-theme='light'] .learn-card-frame {
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.learn-card-badge {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(17, 24, 39, 0.5);
  color: #fff;
  font-weight: 800;
  font-size: 12px;
}

.learn-card-author {
  position: absolute;
  left: 14px;
  top: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: calc(100% - 28px);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(17, 24, 39, 0.52);
  color: #fff;
  backdrop-filter: blur(8px);
}

[data-theme='dark'] .learn-card-author {
  background: rgba(2, 6, 23, 0.6);
  border-color: rgba(255, 255, 255, 0.14);
}

.learn-card-author-avatar {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  object-fit: cover;
  flex: 0 0 auto;
}

.learn-card-author-avatar-fallback {
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.18);
}

.learn-card-author-name {
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.learn-card-author-type {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 900;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.12);
  white-space: nowrap;
  max-width: 44%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.learn-card-type-badge {
  position: absolute;
  right: 14px;
  top: 14px;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(17, 24, 39, 0.65);
  color: #fff;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  white-space: nowrap;
  max-width: 50%;
  overflow: hidden;
  text-overflow: ellipsis;
}

[data-theme='dark'] .learn-card-badge {
  background: rgba(2, 6, 23, 0.55);
  border-color: rgba(255, 255, 255, 0.14);
}

.learn-card-body {
  padding: 12px 14px 14px;
  display: grid;
  gap: 10px;
  min-width: 0;
}

.learn-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.learn-card-meta-right {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.learn-card-title {
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.1px;
}

.learn-card-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.learn-card-metrics {
  font-size: 12px;
  font-weight: 600;
}

.learn-progress {
  height: 8px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.14);
  overflow: hidden;
}

.learn-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
}

.learn-card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.learn-card.learn-card-skeleton {
  pointer-events: none;
}

.learn-skeleton-line {
  height: 12px;
  border-radius: 10px;
}

.learn-skeleton-line.w-55 { width: 55%; }
.learn-skeleton-line.w-70 { width: 70%; }
.learn-skeleton-line.w-90 { width: 90%; }

.learn-skeleton-pill {
  height: 22px;
  width: 86px;
  border-radius: 999px;
}

.learn-skeleton-btn {
  height: 34px;
  width: 140px;
  border-radius: 10px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.quick-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  padding: 12px;
  display: grid;
  gap: 10px;
  transition: box-shadow 150ms ease, transform 150ms ease, border-color 150ms ease;
}

.quick-card:hover {
  border-color: rgba(96, 165, 250, 0.28);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

.quick-card-featured {
  grid-column: 1 / -1;
  padding: 0;
  gap: 0;
  background: var(--card);
  overflow: hidden;
  grid-template-columns: 220px 1fr;
  grid-template-rows: none;
}

.quick-featured-media {
  position: relative;
  background: var(--bg);
  border-right: 1px solid var(--border);
  padding: 10px;
}

.quick-featured-frame {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  background-size: cover;
  background-position: center;
}

[data-theme='light'] .quick-featured-frame {
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.quick-featured-badge {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(17, 24, 39, 0.5);
  color: #fff;
  font-weight: 900;
  font-size: 12px;
}

[data-theme='dark'] .quick-featured-badge {
  background: rgba(2, 6, 23, 0.55);
  border-color: rgba(255, 255, 255, 0.14);
}

.quick-featured-body {
  padding: 12px 14px 14px;
  display: grid;
  gap: 10px;
  min-width: 0;
}

.quick-featured-top {
  display: grid;
  gap: 6px;
}

.quick-featured-title {
  font-weight: 900;
  letter-spacing: -0.2px;
  line-height: 1.25;
}

.quick-featured-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.quick-featured-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.quick-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.quick-card-title {
  font-weight: 800;
  line-height: 1.25;
}

.quick-card-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.user-home-widget {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  padding: 14px;
  transition: box-shadow 150ms ease, transform 150ms ease, border-color 150ms ease;
}

.user-home-widget:hover {
  border-color: rgba(96, 165, 250, 0.22);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.user-home-widget-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.user-home-widget-title {
  margin: 0;
  font-size: 16px;
  font-weight: 900;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 4px;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.stat-value {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.2px;
}

.stat-sub {
  font-size: 12px;
}

.widget-divider {
  height: 1px;
  background: var(--border);
  margin: 12px 0;
}

.week-chart {
  display: grid;
  gap: 10px;
}

.week-chart-title {
  font-weight: 800;
}

.week-bars {
  height: 84px;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
  align-items: end;
}

.week-bar {
  border-radius: 10px;
  background: rgba(148, 163, 184, 0.22);
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.week-bar.active {
  background: rgba(96, 165, 250, 0.6);
  border-color: rgba(96, 165, 250, 0.35);
}

.week-legend {
  font-size: 12px;
}

.goal-list {
  display: grid;
  gap: 10px;
}

.goal-item {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 4px;
}

.goal-title {
  font-weight: 800;
  line-height: 1.25;
}

.goal-meta {
  font-size: 12px;
}

.user-home-cta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.course-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.course-cover {
  margin: -14px -14px 4px;
  border-radius: 14px 14px 12px 12px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: relative;
}

.course-status-badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.course-cover .course-status-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(17, 24, 39, 0.65);
  color: #fff;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  z-index: 2;
}

.course-author-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 6px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.65);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  z-index: 2;
  max-width: calc(100% - 120px);
}

.course-author-badge-avatar {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: grid;
  place-items: center;
  overflow: hidden;
  flex: none;
  font-size: 12px;
  font-weight: 800;
}

.course-author-badge-avatar img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.course-author-badge-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-status-badge.status-draft {
  background: rgba(107, 114, 128, 0.75);
}

.course-status-badge.status-pending {
  background: rgba(217, 119, 6, 0.75);
  border-color: rgba(255, 255, 255, 0.2);
}

.course-status-badge.status-approved {
  background: rgba(21, 128, 61, 0.75);
  border-color: rgba(255, 255, 255, 0.2);
}

.course-status-badge.status-rejected {
  background: rgba(185, 28, 28, 0.75);
  border-color: rgba(255, 255, 255, 0.2);
}

.course-status-badge.status-deleting {
  background: rgba(55, 65, 81, 0.78);
  border-color: rgba(255, 255, 255, 0.2);
}

.course-cover-placeholder {
  height: 220px;
  display: grid;
  place-items: center;
  padding: 0 14px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.course-cover-gradient {
  height: 220px;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.15), rgba(var(--accent-rgb), 0.05));
}

.course-cover img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.course-content {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.course-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
}

.course-author {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.course-author-avatar {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  display: grid;
  place-items: center;
  overflow: hidden;
  flex: none;
  font-size: 14px;
  font-weight: 800;
}

.course-author-avatar img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.course-author-name {
  font-size: 13px;
  font-weight: 700;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.course-status-pill {
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  white-space: nowrap;
}

.course-content.course-content--stack {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.course-content-row.course-content-row--stretch {
  align-items: stretch;
}

.course-cta {
  margin-top: auto;
  justify-content: flex-start;
}

.course-content-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: start;
  min-width: 0;
}

.course-price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 2px;
}

.course-price-label {
  color: var(--muted);
  font-size: 12px;
}

.course-price-value {
  font-weight: 800;
  font-size: 14px;
  white-space: nowrap;
}

.course-price-row.hidden {
  display: none;
}

.course-tariffs {
  display: grid;
  gap: 6px;
  padding-top: 2px;
}

.course-tariffs-empty {
  color: var(--muted);
  font-size: 12px;
}

.course-tariff-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.course-tariff-name {
  color: var(--muted);
  font-size: 12px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-tariff-price {
  font-weight: 800;
  font-size: 13px;
  white-space: nowrap;
}

.course-volume {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.course-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-self: start;
}

.course-icon-btn {
  border: 1px solid var(--border);
  background: var(--card);
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}

.course-icon-btn:hover {
  background: var(--bg);
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--card);
  width: 30px;
  height: 30px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  font-weight: 700;
  color: var(--text);
}

.icon-btn-flat {
  border-color: transparent;
  background: transparent;
}

.icon-btn-flat:hover {
  border-color: transparent;
  background: var(--bg);
}

.icon-btn:hover {
  background: var(--bg);
}

/* Кнопка переключения активности */
.active-toggle {
  color: var(--muted);
  opacity: 0.6;
  transition: opacity 0.15s ease, color 0.15s ease;
}

.active-toggle:hover {
  opacity: 1;
}

.active-toggle.active {
  color: var(--success, #22c55e);
  opacity: 1;
}

.active-toggle.active:hover {
  opacity: 0.8;
}

/* Теги содержимого урока на вкладке «Разделы и уроки» */
.lesson-content-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}
.lesson-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  font-size: 11px;
  line-height: 1.3;
  border-radius: 10px;
  background: rgba(var(--accent-rgb), 0.1);
  color: var(--accent);
  font-weight: 500;
}

.editable-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.editable-row .icon-btn {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.editable-row:hover .icon-btn {
  opacity: 1;
  pointer-events: auto;
}

@media (hover: none) {
  .editable-row .icon-btn {
    opacity: 1;
    pointer-events: auto;
  }
}

.datepicker {
  position: relative;
}

.datepicker input {
  width: 100%;
}

.autocomplete {
  position: relative;
}

.autocomplete input {
  width: 100%;
}

.autocomplete-popover {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 30;
  width: 100%;
  max-height: 240px;
  overflow: auto;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.12);
}

.ac-list {
  display: grid;
  gap: 4px;
}

.ac-item {
  border: 0;
  background: transparent;
  padding: 10px 10px;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
}

.ac-item:hover {
  background: var(--bg);
}

.columns-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 30;
  width: 280px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.12);
}

.columns-title {
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 8px;
}

.columns-list {
  display: grid;
  gap: 8px;
}

.columns-item {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--text);
}

.columns-item input {
  width: 16px;
  height: 16px;
}

.datepicker-popover {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 30;
  width: 320px;
  max-width: 100%;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.12);
}

.dp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.dp-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 13px;
}

.dp-select {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 10px;
  padding: 6px 28px 6px 10px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  height: 32px;
  line-height: 1;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.dp-select:hover {
  border-color: rgba(17, 24, 39, 0.24);
}

.dp-month {
  min-width: 140px;
}

.dp-year {
  min-width: 96px;
}

.dp-select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}

.dp-nav {
  border: 1px solid var(--border);
  background: var(--card);
  width: 32px;
  height: 32px;
  border-radius: 10px;
  padding: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  line-height: 1;
  color: var(--text);
}

.dp-nav:hover {
  background: var(--bg);
}

.dp-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 6px;
}

.dp-weekday {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
}

.dp-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.dp-empty {
  height: 32px;
}

.dp-day {
  border: 0;
  background: transparent;
  height: 32px;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}

.dp-day:hover {
  background: rgba(var(--accent-rgb), 0.1);
}

.dp-day.selected {
  background: rgba(var(--accent-rgb), 0.14);
  color: var(--accent);
}

.table-filters th {
  padding-top: 10px;
  padding-bottom: 10px;
}

.table-filters .table-filter {
  padding: 8px 10px;
  border-radius: 9px;
  font-size: 13px;
}

.course-icon-btn.danger {
  border-color: rgba(185, 28, 28, 0.35);
}

.course-icon-btn.danger:hover {
  background: rgba(185, 28, 28, 0.06);
}

.course-icon.danger {
  color: #b91c1c;
}

.log-list {
  display: grid;
  gap: 10px;
}

.log-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 6px;
}

.log-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.log-title {
  font-weight: 800;
  font-size: 14px;
}

.log-time {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.log-details {
  font-size: 13px;
  color: var(--text);
  line-height: 1.4;
}

.course-icon {
  width: 18px;
  height: 18px;
  color: var(--text);
}

.course-caption {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.course-caption.top {
  font-weight: 600;
  color: var(--text);
}

.course-title {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.1px;
  line-height: 1.25;
}

.course-body {
  font-size: 14px;
  color: var(--text);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.side-overlay {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 50;
}

.side-overlay.open {
  display: grid;
  grid-template-columns: 1fr auto auto;
}

.side-overlay-backdrop {
  background: rgba(17, 24, 39, 0.45);
}

.side-panel {
  width: 460px;
  max-width: 92vw;
  background: var(--card);
  border-left: 1px solid var(--border);
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
}

.kb-editor-panel {
  width: clamp(360px, 58vw, 820px);
  max-width: 92vw;
}

/* DeepSeek чат для редактора базы знаний */
.kb-deepseek-chat-panel {
  width: 380px;
  max-width: 92vw;
  background: var(--card);
  border-right: 1px solid var(--border);
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
  overflow: hidden;
}

.kb-deepseek-chat-panel .deepseek-widget {
  position: static;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.kb-deepseek-chat-panel .deepseek-widget-toggle {
  display: none;
}

.kb-deepseek-chat-panel .deepseek-widget-window {
  position: static;
  width: 100%;
  height: 100%;
  max-height: none;
  border-radius: 0;
  border: none;
  box-shadow: none;
  display: flex;
  flex-direction: column;
}

.kb-deepseek-chat-panel .deepseek-widget-window[hidden] {
  display: none;
}

.kb-editor-actions-sticky {
  display: flex;
  gap: 10px;
  padding: 12px 0;
  margin-bottom: 10px;
  position: sticky;
  top: 0;
  background: var(--card);
  z-index: 5;
  border-bottom: 1px solid var(--border);
}

.wide-panel {
  width: 75vw;
  max-width: 1100px;
}

.lesson-panel {
  width: 560px;
  max-width: 92vw;
}

/* Секции панели урока: визуальное разделение */
.lesson-panel-body {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.lesson-panel-section {
  margin-top: 18px;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.lesson-panel-section:first-of-type {
  margin-top: 14px;
}

.lesson-panel-section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px 0;
}

/* Статус сохранения рядом с кнопками */
.lesson-save-status {
  font-size: 12px;
  color: var(--muted);
  align-self: center;
  min-width: 0;
}

.lesson-save-status.dirty {
  color: var(--warning, #b45309);
}

/* Карточка прогресса загрузки (видео/материалы) */
.lesson-upload-progress-card {
  margin-top: 10px;
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.lesson-upload-progress-card .lesson-progress {
  margin-bottom: 0;
}

.lesson-upload-progress-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 6px;
  font-size: 12px;
}

/* Превью видео: мини-кадр + название */
.lesson-video-preview-card {
  padding: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 4px;
}

.lesson-video-preview-card .lesson-video-preview-thumb {
  width: 100%;
  max-width: 200px;
  aspect-ratio: 16/9;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg);
  margin-bottom: 8px;
}

.lesson-video-preview-card .lesson-video-preview-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.lesson-video-preview-card .lesson-video-preview-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-video-preview-card .lesson-video-preview-link {
  font-size: 12px;
  margin-top: 4px;
}

/* Карточка текста урока (превью 1–2 строки + Редактировать) */
.lesson-notes-card {
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-top: 8px;
}

.lesson-notes-card-preview {
  font-size: 13px;
  color: var(--text);
  margin: 0 0 10px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.lesson-notes-card .btn {
  margin-top: 0;
}

/* Пустое состояние секции */
.lesson-panel-empty {
  padding: 14px;
  text-align: center;
  background: rgba(0, 0, 0, 0.03);
  border-radius: 10px;
  margin-top: 8px;
}

.lesson-panel-empty-text {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 10px 0;
}

.lesson-panel-empty .btn {
  margin: 0;
}

/* Материалы: карточки файлов */
.lesson-materials-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.lesson-material-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.lesson-material-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.lesson-material-card-body {
  flex: 1;
  min-width: 0;
}

.lesson-material-card-name {
  font-size: 13px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-material-card-name a {
  color: var(--text);
  text-decoration: none;
}

.lesson-material-card-name a:hover {
  text-decoration: underline;
}

.lesson-material-card-size {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}

.lesson-material-card-delete {
  flex-shrink: 0;
}

#lesson-edit-overlay .lesson-quiz-panel,
#lesson-edit-overlay .lesson-notes-panel {
  display: none;
  width: 520px;
  max-width: 92vw;
}

#lesson-edit-overlay.open.quiz-open {
  grid-template-columns: 1fr auto auto;
}

#lesson-edit-overlay.open.quiz-open .lesson-quiz-panel {
  display: grid;
}

#lesson-edit-overlay.open.notes-open {
  grid-template-columns: 1fr auto auto;
}

#lesson-edit-overlay.open.notes-open .lesson-notes-panel {
  display: grid;
}

@media (max-width: 1100px) {
  #lesson-edit-overlay.open.quiz-open {
    grid-template-columns: 1fr auto;
  }
  #lesson-edit-overlay.open.quiz-open .lesson-panel {
    display: none;
  }
  #lesson-edit-overlay.open.quiz-open .lesson-quiz-panel {
    display: grid;
  }
  #lesson-edit-overlay.open.notes-open {
    grid-template-columns: 1fr auto;
  }
  #lesson-edit-overlay.open.notes-open .lesson-panel {
    display: none;
  }
  #lesson-edit-overlay.open.notes-open .lesson-notes-panel {
    display: grid;
  }
}

.lesson-quiz-question-row .row-left,
.lesson-quiz-answer-row .row-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.lesson-quiz-question-row input,
.lesson-quiz-answer-row input[type="text"] {
  flex: 1;
  min-width: 0;
}

.lesson-quiz-panel textarea {
  min-height: 90px;
}

@media (min-width: 1200px) {
  .lesson-panel {
    width: 640px;
  }
}

.kb-editor {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  min-height: 260px;
  background: var(--card);
}

.kb-editor .ce-block--selected .ce-block__content {
  background-color: var(--selection-bg) !important;
  border-radius: 8px;
}

.kb-editor .ce-block--selected .ce-block__content,
.kb-editor .ce-block--selected .ce-block__content * {
  color: var(--selection-text) !important;
}

.kb-editor-compact {
  min-height: 120px;
}

.kb-editor-compact .codex-editor__redactor {
  padding-bottom: 70px !important;
}

:root[data-theme='dark'] .kb-editor .ce-toolbar__plus,
:root[data-theme='dark'] .kb-editor .ce-toolbar__settings-btn,
:root[data-theme='dark'] .kb-editor .ce-popover__item-icon,
:root[data-theme='dark'] .kb-editor .ce-settings__button {
  color: #e5e7eb;
}

:root[data-theme='dark'] .kb-editor .ce-toolbar,
:root[data-theme='dark'] .kb-editor .ce-inline-toolbar,
:root[data-theme='dark'] .kb-editor .ce-settings,
:root[data-theme='dark'] .kb-editor .ce-conversion-toolbar,
:root[data-theme='dark'] .kb-editor .ce-popover {
  color: #e5e7eb;
}

:root[data-theme='dark'] .kb-editor .ce-toolbar__plus,
:root[data-theme='dark'] .kb-editor .ce-toolbar__settings-btn,
:root[data-theme='dark'] .kb-editor .ce-settings__button,
:root[data-theme='dark'] .kb-editor .ce-inline-toolbar__toggler,
:root[data-theme='dark'] .kb-editor .ce-popover__item {
  opacity: 1;
}

:root[data-theme='dark'] .kb-editor .ce-toolbar__plus,
:root[data-theme='dark'] .kb-editor .ce-toolbar__settings-btn,
:root[data-theme='dark'] .kb-editor .ce-settings__button,
:root[data-theme='dark'] .kb-editor .ce-inline-toolbar__toggler {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
}

:root[data-theme='dark'] .kb-editor .ce-toolbar__plus svg,
:root[data-theme='dark'] .kb-editor .ce-toolbar__settings-btn svg,
:root[data-theme='dark'] .kb-editor .ce-popover__item-icon svg,
:root[data-theme='dark'] .kb-editor .ce-settings__button svg {
  filter: invert(1) brightness(1.35) contrast(1.15);
}

:root[data-theme='dark'] .kb-editor .ce-toolbar__plus::before,
:root[data-theme='dark'] .kb-editor .ce-toolbar__settings-btn::before,
:root[data-theme='dark'] .kb-editor .ce-inline-toolbar__dropdown::before,
:root[data-theme='dark'] .kb-editor .ce-inline-toolbar__toggler::before,
:root[data-theme='dark'] .kb-editor .ce-settings__button::before,
:root[data-theme='dark'] .kb-editor .ce-popover__item-icon::before {
  filter: invert(1) brightness(1.55) contrast(1.15);
  opacity: 1;
}

:root[data-theme='dark'] .kb-editor .ce-toolbar svg,
:root[data-theme='dark'] .kb-editor .ce-inline-toolbar svg,
:root[data-theme='dark'] .kb-editor .ce-settings svg,
:root[data-theme='dark'] .kb-editor .ce-conversion-toolbar svg,
:root[data-theme='dark'] .kb-editor .ce-popover svg {
  filter: invert(1) brightness(1.35) contrast(1.15);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .kb-editor .ce-toolbar__plus,
  :root:not([data-theme]) .kb-editor .ce-toolbar__settings-btn,
  :root:not([data-theme]) .kb-editor .ce-popover__item-icon,
  :root:not([data-theme]) .kb-editor .ce-settings__button {
    color: #e5e7eb;
  }

  :root:not([data-theme]) .kb-editor .ce-toolbar,
  :root:not([data-theme]) .kb-editor .ce-inline-toolbar,
  :root:not([data-theme]) .kb-editor .ce-settings,
  :root:not([data-theme]) .kb-editor .ce-conversion-toolbar,
  :root:not([data-theme]) .kb-editor .ce-popover {
    color: #e5e7eb;
  }

  :root:not([data-theme]) .kb-editor .ce-toolbar__plus,
  :root:not([data-theme]) .kb-editor .ce-toolbar__settings-btn,
  :root:not([data-theme]) .kb-editor .ce-settings__button,
  :root:not([data-theme]) .kb-editor .ce-inline-toolbar__toggler,
  :root:not([data-theme]) .kb-editor .ce-popover__item {
    opacity: 1;
  }

  :root:not([data-theme]) .kb-editor .ce-toolbar__plus,
  :root:not([data-theme]) .kb-editor .ce-toolbar__settings-btn,
  :root:not([data-theme]) .kb-editor .ce-settings__button,
  :root:not([data-theme]) .kb-editor .ce-inline-toolbar__toggler {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
  }

  :root:not([data-theme]) .kb-editor .ce-toolbar__plus svg,
  :root:not([data-theme]) .kb-editor .ce-toolbar__settings-btn svg,
  :root:not([data-theme]) .kb-editor .ce-popover__item-icon svg,
  :root:not([data-theme]) .kb-editor .ce-settings__button svg {
    filter: invert(1) brightness(1.35) contrast(1.15);
  }

  :root:not([data-theme]) .kb-editor .ce-toolbar__plus::before,
  :root:not([data-theme]) .kb-editor .ce-toolbar__settings-btn::before,
  :root:not([data-theme]) .kb-editor .ce-inline-toolbar__dropdown::before,
  :root:not([data-theme]) .kb-editor .ce-inline-toolbar__toggler::before,
  :root:not([data-theme]) .kb-editor .ce-settings__button::before,
  :root:not([data-theme]) .kb-editor .ce-popover__item-icon::before {
    filter: invert(1) brightness(1.55) contrast(1.15);
    opacity: 1;
  }

  :root:not([data-theme]) .kb-editor .ce-toolbar svg,
  :root:not([data-theme]) .kb-editor .ce-inline-toolbar svg,
  :root:not([data-theme]) .kb-editor .ce-settings svg,
  :root:not([data-theme]) .kb-editor .ce-conversion-toolbar svg,
  :root:not([data-theme]) .kb-editor .ce-popover svg {
    filter: invert(1) brightness(1.35) contrast(1.15);
  }
}

#lesson-edit-overlay .modal-actions {
  position: sticky;
  bottom: 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

#kb-edit-overlay .modal-actions {
  position: sticky;
  bottom: 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-input {
  display: none;
}

.side-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 14px;
  border-bottom: 1px solid var(--border);
}

.side-head-left {
  min-width: 0;
  display: grid;
  gap: 10px;
}

.side-head-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.side-title {
  font-weight: 800;
  font-size: 16px;
}

.close-btn {
  border: 1px solid var(--border);
  background: var(--card);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  color: var(--text);
}

.close-btn:hover {
  background: var(--bg);
}

.side-body {
  padding: 14px;
  overflow: auto;
  min-height: 0;
}

.overlay-open {
  overflow: hidden;
}

.overlay-open .layout {
  filter: blur(3px);
  pointer-events: none;
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.steps {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.step-tab {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.step-tab.active {
  background: rgba(var(--accent-rgb), 0.1);
  border-color: rgba(var(--accent-rgb), 0.35);
  color: var(--accent);
}

.step-panel {
  margin-top: 14px;
}

.course-section {
  display: grid;
  gap: 6px;
}

.course-section-lessons {
  padding-left: 40px;
}

.course-section-lessons .list {
  margin-top: 0;
}

.course-lesson-row {
  padding: 10px 12px;
}

.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
}

.review-item {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
}

@media (max-width: 860px) {
  .review-grid {
    grid-template-columns: 1fr;
  }
}

h1 {
  margin: 0 0 14px;
  font-size: 22px;
}

h2 {
  margin: 0;
  font-size: 16px;
}

.dir-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.dir-anchor-link {
  font-size: 13px;
  color: var(--link);
  text-decoration: none;
}

.dir-anchor-link:hover {
  text-decoration: underline;
}

.dir-section-title-with-hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.dir-used-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  cursor: help;
}

.dir-used-desc {
  max-width: 520px;
}

.dir-section {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.dir-section:target {
  scroll-margin-top: 12px;
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.field-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.field-counter {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.field-counter.bad {
  color: var(--danger);
}

.label {
  font-size: 13px;
  color: var(--muted);
}

.review-moderation {
  margin-top: 14px;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.review-moderation .field {
  flex: 1 1 420px;
  min-width: 260px;
}

.review-moderation-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.review-tooltip {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  line-height: 1;
  cursor: help;
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease, box-shadow 150ms ease;
}

.review-tooltip:hover,
.review-tooltip:focus-visible {
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.35);
  background: rgba(var(--accent-rgb), 0.08);
}

.review-tooltip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.2);
}

.review-tooltip-text {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  width: 280px;
  max-width: 90vw;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 12px;
  line-height: 1.4;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 150ms ease, transform 150ms ease, visibility 150ms ease;
  z-index: 20;
  pointer-events: none;
}

.review-tooltip:hover .review-tooltip-text,
.review-tooltip:focus-visible .review-tooltip-text,
.review-tooltip:focus .review-tooltip-text {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="password"],
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  background: var(--card);
  color: var(--text);
}

.permissions-root {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: var(--bg);
}

.permissions-root input[type="checkbox"] {
  accent-color: var(--accent);
}

.input-placeholder {
  color: var(--muted);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="tel"]::placeholder,
input[type="date"]::placeholder,
input[type="password"]::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.85;
}

textarea {
  min-height: 110px;
  resize: vertical;
  font-family: inherit;
}

select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
  background: var(--card);
  color: var(--text);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="date"]:focus,
input[type="password"]:focus,
textarea:focus {
  border-color: rgba(var(--accent-rgb), 0.55);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}

select:focus {
  border-color: rgba(var(--accent-rgb), 0.55);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}

.btn {
  border: 1px solid var(--btn-primary-border);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  font: inherit;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: background 150ms ease, box-shadow 150ms ease, transform 150ms ease, color 150ms ease, border-color 150ms ease;
}

.btn .btn-icon {
  margin-right: 8px;
  flex: 0 0 auto;
}

.btn:hover:not(:disabled) {
  background: var(--btn-primary-hover-bg);
}

.btn:active:not(:disabled) {
  background: var(--btn-primary-active-bg);
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--btn-focus-ring);
}

.btn.secondary {
  border: 1px solid var(--border);
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
}

.btn.secondary:hover:not(:disabled) {
  background: var(--btn-secondary-hover-bg);
}

.btn.secondary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn.danger {
  background: #b91c1c;
  color: #fff;
}

.btn.small {
  padding: 8px 10px;
  border-radius: 9px;
  font-size: 13px;
}

.segmented {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--segmented-border);
  background: var(--segmented-bg);
  gap: 4px;
}

.segmented-btn {
  appearance: none;
  border: 0;
  background: transparent;
  font: inherit;
  padding: 10px 12px;
  border-radius: 999px;
  font-weight: 700;
  color: var(--segmented-text);
  cursor: pointer;
  transition: background 150ms ease, box-shadow 150ms ease, color 150ms ease;
}

.segmented-btn.active {
  background: var(--segmented-active-bg);
  color: var(--segmented-active-text);
  box-shadow: var(--segmented-active-shadow);
}

.segmented-btn:focus {
  outline: none;
}

.segmented-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.14);
}

.segmented-btn.active:focus-visible {
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.14), var(--segmented-active-shadow);
}

.actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.files-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.file-thumb {
  position: relative;
  width: 72px;
  height: 72px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.file-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.15s ease;
}

.file-thumb:hover {
  background: var(--bg);
}

.file-thumb:hover img {
  filter: blur(2px);
}

.file-thumb-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s ease;
  background: rgba(17, 24, 39, 0.35);
  color: #fff;
  pointer-events: none;
  z-index: 1;
}

.file-thumb:hover .file-thumb-overlay {
  opacity: 1;
}

.file-thumb.file-add {
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 800;
  padding: 0;
  color: var(--text);
}

.file-thumb.file-add:hover {
  background: var(--bg);
}

.file-thumb.file-add:disabled {
  opacity: 0.6;
  cursor: default;
}

.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  padding: 8px 10px;
  max-width: 100%;
}

.file-chip-link {
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}

.file-chip-link:hover {
  text-decoration: underline;
}

.file-remove {
  border: 0;
  background: rgba(148, 163, 184, 0.22);
  color: var(--text);
  width: 22px;
  height: 22px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0;
}

.file-thumb .file-remove {
  position: absolute;
  top: 6px;
  right: 6px;
  z-index: 2;
}

.file-remove:disabled {
  opacity: 0.65;
  cursor: default;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 680px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.span-2 {
  grid-column: 1 / -1;
}

.table-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.list-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 12px 12px;
}

button.list-row {
  width: 100%;
  text-align: left;
  color: inherit;
  font: inherit;
}


.course-section.dnd-source > .course-section-lessons {
  display: none;
}

.course-section.dnd-source > .list-row {
  opacity: 0.55;
}

.dnd-placeholder {
  height: 46px;
  border: 2px dashed rgba(var(--accent-rgb), 0.45);
  background: rgba(var(--accent-rgb), 0.06);
  border-radius: 12px;
}

.dnd-placeholder.section {
  height: 62px;
}

.dnd-dropzone {
  min-height: 10px;
}

.list-row.inactive {
  opacity: 0.7;
}

.row-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.course-section > .list-row > .row-left {
  align-items: flex-start;
}

.row-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  flex: 1 1 auto;
}

.move-controls {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-right: 4px;
}

.move-controls .icon-btn {
  padding: 4px;
  line-height: 1;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.row-title {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Стили для разделов базы знаний */
.kb-section-row {
  background: rgba(var(--accent-rgb), 0.05);
  border-color: rgba(var(--accent-rgb), 0.2);
  border-width: 1.5px;
  font-weight: 600;
}

.kb-section-row .row-left {
  gap: 10px;
}

/* Стили для разделов базы знаний */
.kb-section-row {
  background: rgba(var(--accent-rgb), 0.05);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  margin-bottom: 8px;
  border-radius: 8px;
  font-weight: 600;
}

.kb-section-row:hover {
  background: rgba(var(--accent-rgb), 0.08);
}

.kb-section-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-right: 10px;
}

.kb-section-icon svg {
  width: 100%;
  height: 100%;
}

.kb-section-title {
  font-weight: 600;
  font-size: 15px;
  color: var(--accent);
}

/* Стили для выбора иконок разделов */
.kb-icon-select-btn {
  width: 100%;
  aspect-ratio: 1;
  border: 2px solid var(--border);
  background: var(--card);
  border-radius: 8px;
  cursor: pointer;
  padding: 8px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kb-icon-select-btn:hover {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), 0.05);
}

.kb-icon-select-btn svg {
  width: 24px;
  height: 24px;
}

/* Стили для документов базы знаний */
.kb-page-row {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 2px solid transparent;
  margin-left: 32px;
  margin-bottom: 4px;
  padding: 10px 16px;
  border-radius: 6px;
  transition: background-color 0.2s, border-color 0.2s;
}

.kb-page-row:hover {
  background: var(--bg);
  border-left-color: rgba(var(--accent-rgb), 0.4);
}

.kb-page-row .row-title {
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
}
.row-subtitle {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-right {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 10px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  color: var(--text);
}

.icon-btn:hover {
  background: var(--bg);
}

.menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 6px;
  min-width: 160px;
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.12);
  display: none;
  z-index: 5;
}

.menu.open {
  display: grid;
  gap: 4px;
}

.menu-item {
  border: 0;
  background: transparent;
  text-align: left;
  padding: 10px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
}

.menu-item:hover {
  background: var(--bg);
}

.menu-item.danger {
  color: #b91c1c;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 100;
}

[data-theme='dark'] .modal-backdrop {
  background: rgba(0, 0, 0, 0.6);
}

.modal {
  width: 100%;
  max-width: 520px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: modalAppear 0.15s ease-out;
}

@keyframes modalAppear {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-weight: 700;
}

.modal-body {
  padding: 14px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 12px;
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  color: var(--text);
  font-size: 14px;
  user-select: none;
}

.checkbox input {
  width: 16px;
  height: 16px;
}

.btn:disabled {
  opacity: 0.65;
  cursor: default;
}

.alert {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  margin-top: 12px;
}

.alert.error {
  border-color: rgba(185, 28, 28, 0.35);
  background: rgba(185, 28, 28, 0.06);
  color: #7f1d1d;
}

.alert.success {
  border-color: rgba(21, 128, 61, 0.35);
  background: rgba(21, 128, 61, 0.06);
  color: #14532d;
}

.alert.info {
  border-color: rgba(var(--accent-rgb), 0.22);
  background: rgba(var(--accent-rgb), 0.06);
  color: var(--text);
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
}

.table th,
.table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.table th {
  color: var(--muted);
  font-weight: 600;
}

.muted {
  color: var(--muted);
}

.sidebar-burger {
  display: none;
}

.sidebar-backdrop {
  display: none;
}

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 0;
    gap: 0;
  }
  .layout.lesson-layout {
    grid-template-columns: 1fr;
    padding: 0;
    gap: 0;
  }
  .user-home-head {
    flex-direction: column;
    align-items: stretch;
  }
  .user-home-actions {
    justify-content: flex-start;
  }
  .user-home-grid {
    grid-template-columns: 1fr;
  }
  .learn-grid {
    grid-template-columns: 1fr;
  }
  .quick-grid {
    grid-template-columns: 1fr;
  }
  .quick-card-featured {
    grid-column: auto;
    grid-template-columns: 1fr;
  }
  .quick-featured-media {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    min-height: 140px;
  }
  .catalog-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .catalog-filters {
    justify-content: flex-start;
  }
  .catalog-grid {
    grid-template-columns: 1fr;
  }
  .sidebar {
    border: none;
    border-radius: 0;
    box-shadow: none;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    max-height: none;
    overflow: visible;
    padding: 10px 12px;
    z-index: 50;
    height: auto !important;
    min-height: auto !important;
    flex: 0 0 auto !important;
  }
  .sidebar:not(.right-nav) {
    top: 0;
    max-height: none;
    overflow: visible;
    height: auto !important;
    min-height: auto !important;
    flex: 0 0 auto !important;
  }
  .sidebar.right-nav {
    border-bottom: none;
  }
  .layout.lesson-layout .sidebar.right-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 360px;
    max-width: 92vw;
    border-radius: 0;
    border-left: 1px solid var(--border);
    transform: translateX(110%);
    transition: transform 160ms ease-out;
    z-index: 60;
    max-height: none;
    overflow: auto;
  }
  body.lesson-nav-open .layout.lesson-layout .sidebar.right-nav {
    transform: translateX(0);
  }
  .sidebar-burger {
    display: inline-flex;
    width: 34px;
    height: 34px;
    border-radius: 12px;
  }
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(17, 24, 39, 0.4);
    z-index: 40;
  }
  body.sidebar-open .sidebar-backdrop {
    display: block;
  }
  .sidebar:not(.right-nav) .nav {
    display: none;
    flex: 0 0 auto;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
  }
  body.sidebar-open .sidebar:not(.right-nav) .nav {
    display: flex;
  }
  .sidebar-footer {
    display: none;
  }
  body.sidebar-open .sidebar-footer {
    display: block;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
  }
  .cards {
    grid-template-columns: 1fr;
  }
  .cards.courses-grid {
    grid-template-columns: 1fr;
  }
  .account-grid {
    grid-template-columns: 1fr;
  }
  .account-fields {
    grid-template-columns: 1fr;
  }
}

.lesson-page-head {
  align-items: center;
}

.lesson-title-wrap {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.lesson-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}

.lesson-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.lesson-breadcrumb a:hover {
  text-decoration: underline;
}

.lesson-sep {
  color: var(--muted);
}

.lesson-current {
  color: var(--text);
  font-weight: 600;
}

.lesson-title {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.1px;
}

.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lesson-completion-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

#lesson-completion-pill {
  padding: 6px 8px;
}

.lesson-progress-pill {
  width: 120px;
  height: 28px;
  min-width: 96px;
  max-width: 140px;
  background: #eef2ff;
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  border-radius: 999px;
  overflow: hidden;
  flex: none;
}

.lesson-progress-pill .lesson-progress-fill {
  height: 100%;
}

.pill {
  font-size: 12px;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  padding: 6px 10px;
}

.pill.pill-soon {
  border-color: rgba(2, 132, 199, 0.35);
  background: rgba(2, 132, 199, 0.08);
  color: #075985;
}

.pill.pill-success {
  border-color: rgba(16, 185, 129, 0.35);
  background: rgba(16, 185, 129, 0.1);
  color: #047857;
}

.pill.pill-warning {
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.1);
  color: #b45309;
}

.pill.pill-danger {
  border-color: rgba(239, 68, 68, 0.35);
  background: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
}

.lesson-homework-drop {
  margin-top: 12px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 18px 14px;
  text-align: center;
  background: var(--bg);
}

.lesson-homework-actions,
.lesson-quiz-actions {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.lesson-quiz-question {
  margin-top: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 10px;
}

.lesson-quiz-question-title {
  font-weight: 700;
  color: var(--text);
}

.lesson-quiz-answer {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.lesson-quiz-answer:hover {
  border-color: rgba(var(--accent-rgb), 0.4);
  background: rgba(var(--accent-rgb), 0.04);
}

.lesson-quiz-answer:has(input:checked) {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
}

.lesson-quiz-answer input {
  margin-top: 3px;
  flex-shrink: 0;
}

.lesson-quiz-answer span {
  color: var(--text);
  font-size: 14px;
  line-height: 1.35;
}

.lesson-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-items: start;
}

@media (min-width: 980px) {
  .lesson-grid {
    grid-template-columns: minmax(0, 1fr) 360px;
  }
}

@media (max-width: 1560px) {
  .layout.lesson-layout .lesson-grid {
    grid-template-columns: 1fr;
  }
}

.lesson-main-col,
.lesson-side-col {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.lesson-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.lesson-quiz-head-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lesson-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 220px;
}

.lesson-progress-bar {
  height: 8px;
  flex: 1;
  min-width: 120px;
  background: #eef2ff;
  border: 1px solid rgba(var(--accent-rgb), 0.18);
  border-radius: 999px;
  overflow: hidden;
}

.lesson-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: inherit;
}

.lesson-progress-meta {
  font-size: 12px;
  white-space: nowrap;
}

.lesson-video-frame {
  border-radius: 12px;
  overflow: hidden;
  background: radial-gradient(1200px 500px at 20% 15%, rgba(var(--accent-rgb), 0.45), transparent 55%),
    radial-gradient(900px 420px at 85% 15%, rgba(56, 189, 248, 0.26), transparent 55%), #0b1220;
  aspect-ratio: 16 / 9;
}

.lesson-video-frame video {
  width: 100%;
  height: 100%;
  display: block;
  background: transparent;
}

.lesson-lesson-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 6px;
}

.lesson-nav-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
}

.lesson-nav-arrow:hover:not(:disabled) {
  opacity: 0.9;
  transform: scale(1.02);
}

.lesson-nav-arrow:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.lesson-quiz-progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 14px;
}

.lesson-quiz-progress-bar {
  height: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.lesson-quiz-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: inherit;
  transition: width 0.2s ease;
}

.lesson-quiz-counter-pill {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.1);
  padding: 4px 10px;
  border-radius: 999px;
}

.lesson-quiz-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.lesson-quiz-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.lesson-quiz-hint {
  margin-bottom: 10px;
  font-size: 13px;
}

.lesson-prose {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}

.lesson-prose h3 {
  margin: 14px 0 6px;
  font-size: 15px;
}

.lesson-prose p {
  margin: 0 0 10px;
}

.lesson-prose ul {
  margin: 0 0 10px;
  padding-left: 18px;
}

.lesson-callout {
  margin: 12px 0;
  border-radius: 12px;
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  background: rgba(var(--accent-rgb), 0.06);
  padding: 12px;
  display: grid;
  gap: 6px;
}

.lesson-callout-title {
  font-weight: 800;
  font-size: 13px;
  color: var(--accent);
}

.lesson-my-notes-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.lesson-my-notes-card textarea {
  min-height: 160px;
  margin-top: 2px;
}

.lesson-footnote {
  margin-top: 10px;
  font-size: 13px;
}

.lesson-attachments {
  display: grid;
  gap: 10px;
}

.lesson-attachment {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  min-width: 0;
}

.lesson-attachment:hover {
  background: var(--bg);
}

.lesson-attachment-left {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "badge title"
    "badge meta";
  column-gap: 10px;
  row-gap: 2px;
  min-width: 0;
  align-items: start;
}

.file-badge {
  grid-area: badge;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.6px;
  padding: 6px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
}

.file-badge.pdf {
  border-color: rgba(185, 28, 28, 0.35);
  background: rgba(185, 28, 28, 0.06);
  color: #7f1d1d;
}

.file-badge.zip {
  border-color: rgba(17, 94, 89, 0.35);
  background: rgba(17, 94, 89, 0.06);
  color: #115e59;
}

.file-badge.link {
  border-color: rgba(30, 64, 175, 0.35);
  background: rgba(30, 64, 175, 0.06);
  color: #1e40af;
}

.lesson-attachment-name {
  grid-area: title;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-attachment-meta {
  grid-area: meta;
  font-size: 12px;
}

.lesson-attachment-right {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  flex: none;
}

.lesson-attachment:hover .lesson-attachment-right {
  background: var(--card);
}

.lesson-icon {
  width: 18px;
  height: 18px;
  color: var(--text);
}

.lesson-outline {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.lesson-outline-link {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
}

.lesson-outline-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

.lesson-outline-foot {
  margin-top: 12px;
  font-size: 13px;
}

@media (max-width: 520px) {
  .lesson-actions {
    width: 100%;
  }
  .lesson-actions .btn {
    flex: 1;
  }
}

.lesson-rating {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  max-width: 100%;
}

.lesson-star {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  opacity: 0.55;
  cursor: pointer;
  line-height: 1;
  font-size: 18px;
  padding: 0;
}

.lesson-my-notes-editor {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 10px 12px;
  min-height: 160px;
}

.lesson-my-notes-editor .ce-block__content,
.lesson-my-notes-editor .ce-toolbar__content {
  max-width: 100%;
}

.lesson-star.active {
  opacity: 1;
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
}

.lesson-star:focus-visible {
  outline: 2px solid rgba(var(--accent-rgb), 0.45);
  outline-offset: 2px;
}

.course-page {
  display: grid;
  gap: 14px;
}

.course-hero {
  background: radial-gradient(1200px 420px at 15% 0%, rgba(var(--accent-rgb), 0.16), transparent 55%),
    radial-gradient(900px 420px at 85% 5%, rgba(56, 189, 248, 0.12), transparent 55%), var(--card);
}

.course-hero-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.course-hero-kicker {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.course-hero-title {
  margin: 0;
  font-size: 26px;
  letter-spacing: 0.1px;
}

.course-hero-subtitle {
  margin-top: 10px;
  color: var(--muted);
  max-width: 980px;
}

.course-hero-bullets {
  margin: 12px 0 0 0;
  padding-left: 18px;
  color: var(--text);
  display: grid;
  gap: 8px;
  max-width: 980px;
}

.course-hero-meta {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.course-hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-self: start;
}

@media (max-width: 520px) {
  .course-hero-actions {
    width: 100%;
  }
  .course-hero-actions .btn {
    flex: 1;
  }
}

.course-sales-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

@media (min-width: 980px) {
  .course-sales-grid {
    grid-template-columns: minmax(0, 1fr) 360px;
  }
}

.course-sales-main {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.course-block {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.course-block.course-block-first {
  border-top: none;
  padding-top: 0;
}

.course-block-title {
  margin: 0 0 10px 0;
  font-size: 18px;
}

.course-block-subtitle {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}

.course-block-body p {
  margin: 0 0 10px 0;
}

.course-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  display: grid;
  gap: 8px;
}

.course-two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 980px) {
  .course-two-col {
    grid-template-columns: 1fr 1fr;
  }
}

.course-pricing {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 980px) {
  .course-pricing {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.pricing-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 14px;
  padding: 12px;
  display: grid;
  gap: 10px;
  cursor: pointer;
  min-width: 0;
}

.pricing-card:hover {
  background: var(--bg);
}

.pricing-card:focus-within {
  outline: 2px solid rgba(var(--accent-rgb), 0.45);
  outline-offset: 2px;
}

.pricing-card.selected {
  border-color: rgba(var(--accent-rgb), 0.35);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
}

.pricing-radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.pricing-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.pricing-name {
  font-weight: 800;
  color: var(--text);
}

.pricing-badge {
  font-size: 12px;
  color: var(--accent);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  background: rgba(var(--accent-rgb), 0.06);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

.pricing-price-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.pricing-price {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
}

.pricing-old {
  color: var(--muted);
  text-decoration: line-through;
  font-size: 13px;
}

.pricing-includes {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  display: grid;
  gap: 8px;
}

.course-pricing-note {
  margin-top: 10px;
}

.course-program {
  display: grid;
  gap: 10px;
}

.course-program-hint {
  margin-bottom: 10px;
}

.course-program-section {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 10px 12px;
}

.course-program-section summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.course-program-section summary::-webkit-details-marker {
  display: none;
}

.course-program-section summary:focus-visible {
  outline: 2px solid rgba(var(--accent-rgb), 0.45);
  outline-offset: 2px;
  border-radius: 10px;
}

.course-program-section-title {
  font-weight: 600;
  color: var(--text);
}

.course-program-section-badge {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.course-program-section-body {
  margin-top: 10px;
}

.course-program-lessons {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.course-program-lesson {
  border-top: 1px dashed rgba(148, 163, 184, 0.5);
  padding-top: 10px;
}

.course-program-lesson:first-child {
  border-top: none;
  padding-top: 0;
}

.course-program-lesson-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  font-weight: 600;
  color: var(--text);
}

.course-program-lesson.locked .course-program-lesson-title {
  opacity: 0.92;
}

.course-lock {
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  padding: 2px 8px;
}

.course-program-lesson-desc {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.course-steps {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.course-step-title {
  font-weight: 600;
  color: var(--text);
}

.course-step-text {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.course-included {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 980px) {
  .course-included {
    grid-template-columns: 1fr 1fr;
  }
}

.course-included-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
}

.course-included-title {
  font-weight: 600;
  color: var(--text);
}

.course-included-text {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.course-author-name {
  font-weight: 700;
  color: var(--text);
}

.course-author-text {
  margin-top: 6px;
}

.course-faq {
  display: grid;
  gap: 10px;
}

.course-faq-item {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 10px 12px;
}

.course-faq-item summary {
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}

.course-faq-item summary::-webkit-details-marker {
  display: none;
}

.course-faq-item summary:focus-visible {
  outline: 2px solid rgba(var(--accent-rgb), 0.45);
  outline-offset: 2px;
  border-radius: 10px;
}

.course-faq-body {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.course-sales-side {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.course-side-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 14px;
  position: static;
}

@media (min-width: 980px) {
  .course-side-card {
    position: sticky;
    top: 18px;
  }
  .course-side-card + .course-side-card {
    position: static;
  }
}

.course-side-title {
  font-weight: 700;
  color: var(--text);
}

.course-side-subtitle {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.course-side-price {
  margin-top: 10px;
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.2px;
}

.course-side-price-note {
  margin-top: 6px;
}

.course-side-list {
  margin: 12px 0 0 0;
  padding-left: 18px;
  color: var(--text);
  display: grid;
  gap: 8px;
}

.course-side-nav {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.course-side-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
}

.course-side-nav a:focus-visible {
  outline: 2px solid rgba(var(--accent-rgb), 0.45);
  outline-offset: 2px;
  border-radius: 10px;
}

.course-side-nav a:hover {
  color: var(--text);
  text-decoration: underline;
}

.course-final-subtitle {
  color: var(--muted);
  margin-bottom: 12px;
}

.course-trust {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 980px) {
  .course-trust {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.trust-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 4px;
}

.trust-value {
  font-size: 20px;
  font-weight: 900;
  color: var(--text);
}

.trust-label {
  font-weight: 700;
  color: var(--text);
}

.trust-note {
  font-size: 13px;
}

.course-how {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 980px) {
  .course-how {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.how-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 6px;
}

.how-title {
  font-weight: 800;
  color: var(--text);
}

.how-text {
  font-size: 13px;
}

.author-grid {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  background: rgba(var(--accent-rgb), 0.06);
  color: #1d4ed8;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.8px;
}

.author-name {
  font-weight: 900;
  color: var(--text);
  font-size: 16px;
}

.author-title {
  margin-top: 2px;
  font-size: 13px;
}

.author-bio {
  margin-top: 10px;
  color: var(--muted);
}

.author-subhead {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 800;
  color: var(--text);
}

.author-list {
  margin: 8px 0 0 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 8px;
}

.course-testimonials {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 980px) {
  .course-testimonials {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.testimonial-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
  display: grid;
  gap: 10px;
}

.testimonial-head {
  display: grid;
  gap: 2px;
}

.testimonial-name {
  font-weight: 800;
  color: var(--text);
}

.testimonial-role {
  font-size: 13px;
}

.testimonial-text {
  color: var(--muted);
}

.testimonial-result {
  border-top: 1px dashed rgba(148, 163, 184, 0.5);
  padding-top: 10px;
  font-size: 13px;
  color: var(--text);
  font-weight: 700;
}

/* ===== DeepSeek AI Widget ===== */

/* Показывать только на desktop */
@media (max-width: 860px) {
  .deepseek-widget {
    display: none !important;
  }

  /* Мобильная адаптация для knowledge-docs */
  .layout {
    grid-template-columns: 1fr;
    padding: 8px;
    gap: 8px;
  }

  .sidebar:not(.right-nav) {
    position: relative;
    top: auto;
    max-height: none;
    border-radius: 8px;
    padding: 12px;
  }

  .main {
    padding: 12px;
  }

  .card {
    padding: 12px;
    border-radius: 8px;
  }

  .page-head {
    margin-bottom: 12px;
  }

  .page-head h1 {
    font-size: 18px;
    margin-bottom: 8px;
  }

  .list-row {
    padding: 10px 8px;
    margin-left: 0 !important;
  }

  .kb-page-row {
    margin-left: 16px !important;
  }
  
  .kb-section-row {
    background: rgba(var(--accent-rgb), 0.08);
  }
  
  .kb-section-icon {
    width: 18px;
    height: 18px;
  }
  
  .kb-section-title {
    font-size: 14px;
  }
  
  .kb-page-row .row-title {
    font-size: 13px;
  }

  .row-left {
    gap: 8px;
  }

  .row-title {
    font-size: 14px;
    white-space: normal;
    word-wrap: break-word;
    overflow: visible;
    text-overflow: clip;
  }

  .row-right {
    flex-shrink: 0;
    margin-left: 8px;
  }

  .row-right .muted {
    font-size: 11px;
  }
}

@media (max-width: 520px) {
  .layout {
    padding: 4px;
    gap: 4px;
  }

  .sidebar:not(.right-nav) {
    padding: 8px;
  }

  .main {
    padding: 8px;
  }

  .card {
    padding: 10px;
  }

  .page-head h1 {
    font-size: 16px;
  }

  .list-row {
    padding: 8px 6px;
    flex-wrap: wrap;
  }

  .row-left {
    flex: 1 1 auto;
    min-width: 0;
  }

  .row-right {
    flex: 0 0 auto;
    width: 100%;
    margin-left: 0;
    margin-top: 4px;
    justify-content: flex-start;
  }

  .row-title {
    font-size: 13px;
    line-height: 1.4;
  }
}

.deepseek-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  font-family: inherit;
}

body.dnd-sections-active .deepseek-widget {
  pointer-events: none;
}

/* Кнопка открытия */
.deepseek-widget-toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 12px rgba(99, 102, 241, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.deepseek-widget-toggle:hover {
  transform: scale(1.06);
  box-shadow: 0 5px 18px rgba(99, 102, 241, 0.45);
}

.deepseek-widget-toggle:active {
  transform: scale(0.95);
}

.deepseek-widget-toggle svg {
  width: 22px;
  height: 22px;
  color: white;
}

/* Окно чата */
.deepseek-widget-window {
  position: absolute;
  bottom: 60px;
  right: 0;
  width: 320px;
  max-height: 420px;
  background: var(--card);
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: deepseek-slide-up 0.25s ease-out;
}

.deepseek-widget-window[hidden] {
  display: none;
}

@keyframes deepseek-slide-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Заголовок */
.deepseek-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
}

.deepseek-widget-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 13px;
  color: var(--text);
}

.deepseek-widget-title svg {
  width: 18px;
  height: 18px;
  color: #6366f1;
}

.deepseek-widget-close {
  width: 26px;
  height: 26px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}

.deepseek-widget-close:hover {
  background: var(--border);
  color: var(--text);
}

.deepseek-widget-close svg {
  width: 16px;
  height: 16px;
}

/* Сообщения */
.deepseek-widget-messages {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 150px;
  max-height: 240px;
}

.deepseek-message {
  max-width: 92%;
  animation: deepseek-fade-in 0.2s ease-out;
}

@keyframes deepseek-fade-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.deepseek-message.user {
  align-self: flex-end;
}

.deepseek-message.assistant {
  align-self: flex-start;
}

.deepseek-message-content {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.deepseek-message.user .deepseek-message-content {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: white;
  border-bottom-right-radius: 4px;
}

.deepseek-message.assistant .deepseek-message-content {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 4px;
}

/* Кнопка копирования */
.deepseek-message-actions {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.deepseek-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  font-size: 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--muted);
  transition: all 0.15s;
}

.deepseek-copy-btn svg {
  width: 12px;
  height: 12px;
}

.deepseek-copy-btn:hover {
  background: var(--bg);
  color: var(--text);
  border-color: var(--text);
}

.deepseek-copy-btn.copied {
  background: #10b981;
  color: white;
  border-color: #10b981;
}

/* Индикатор загрузки */
.deepseek-typing {
  display: flex;
  gap: 5px;
  padding: 12px 16px;
}

.deepseek-typing span {
  width: 8px;
  height: 8px;
  background: var(--muted);
  border-radius: 50%;
  animation: deepseek-bounce 1.4s infinite ease-in-out;
}

.deepseek-typing span:nth-child(2) {
  animation-delay: 0.16s;
}

.deepseek-typing span:nth-child(3) {
  animation-delay: 0.32s;
}

@keyframes deepseek-bounce {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1.1);
    opacity: 1;
  }
}

.deepseek-loading .deepseek-typing {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  border-bottom-left-radius: 4px;
}

/* Поле ввода */
.deepseek-widget-input {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.deepseek-widget-input textarea {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 12px;
  resize: none;
  background: var(--card);
  color: var(--text);
  font-family: inherit;
  line-height: 1.4;
  transition: border-color 0.15s;
  min-height: 36px;
  max-height: 80px;
  overflow-y: auto;
}

.deepseek-widget-input textarea:focus {
  outline: none;
  border-color: #6366f1;
}

.deepseek-widget-input textarea::placeholder {
  color: var(--muted);
}

.deepseek-widget-send {
  width: 36px;
  height: 36px;
  border: none;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.15s, transform 0.15s;
  flex-shrink: 0;
}

.deepseek-widget-send:hover:not(:disabled) {
  transform: scale(1.05);
}

.deepseek-widget-send:active:not(:disabled) {
  transform: scale(0.95);
}

.deepseek-widget-send:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.deepseek-widget-send svg {
  width: 16px;
  height: 16px;
  color: white;
}