:root {
  /* CI Brand Collab tokens */
  --ci-brand: #4A235A;
  --ci-brand-hover: #3a1b47;
  --ci-brand-soft: #f5eff7;
  --ci-brand-tint: #eadff0;
  --ci-brand-muted: #7a5688;
  --ci-ink: #2d1736;
  --ci-text: #1f2937;
  --ci-muted: #64748b;
  --ci-line: #d9c8de;
  --ci-line-soft: #eee4f1;
  --ci-page-bg: #f7fbff;
  --ci-header-bg: #f7fbff;
  --ci-header-border: var(--ci-brand);
  --ci-header-border-width: 3px;
  --ci-surface: #ffffff;
  --ci-surface-muted: #f8fafc;
  --ci-neutral-50: #f8fafc;
  --ci-neutral-100: #f1f5f9;
  --ci-neutral-200: #e2e8f0;
  --ci-neutral-400: #94a3b8;
  --ci-neutral-500: #64748b;
  --ci-neutral-600: #475569;
  --ci-neutral-700: #334155;
  --ci-neutral-900: #020617;
  --ci-success: #2f8a4f;
  --ci-success-soft: #f3f8f4;
  --ci-warning: #c59a17;
  --ci-cyan: #13a3b8;
  --ci-cyan-soft: #ecfeff;
  --ci-blue: #1d4ed8;
  --ci-blue-soft: #eff6ff;
  --ci-progress: var(--ci-brand);
  --ci-focus: var(--ci-brand);
  --ci-shadow-soft: 0 5px 12px rgba(45, 23, 54, 0.045);
  --ci-shadow-card: 0 6px 16px rgba(45, 23, 54, 0.08);
  --ci-shadow-drawer: -14px 0 34px rgba(45, 23, 54, 0.12);
}

body {
  background: var(--ci-page-bg) !important;
  color: var(--ci-ink);
  line-height: 1.6;
}

/* Map the existing prototype design tokens to the Collab CI system. */
.text-achieve-blue,
.text-achieve-deep {
  color: var(--ci-brand) !important;
}

.text-achieve-ink {
  color: var(--ci-ink) !important;
}

.bg-achieve-blue {
  background-color: var(--ci-brand) !important;
}

.hover\:bg-achieve-deep:hover {
  background-color: var(--ci-brand-hover) !important;
}

.bg-achieve-soft {
  background-color: var(--ci-brand-soft) !important;
}

.border-achieve-line,
.before\:border-achieve-line::before {
  border-color: var(--ci-line) !important;
}

.divide-achieve-line > :not([hidden]) ~ :not([hidden]) {
  border-color: var(--ci-line) !important;
}

.collab-page a {
  color: var(--ci-brand);
}

/* =============================================
   Sidebar — collab-sidebar component system
   Retheme by changing --sb-* tokens only.
   ============================================= */

.collab-sidebar {
  --sb-bg:           var(--ci-brand);
  --sb-bg-hover:     rgba(255, 255, 255, 0.09);
  --sb-bg-active:    rgba(255, 255, 255, 0.15);
  --sb-text:         rgba(255, 255, 255, 0.92);
  --sb-text-sub:     rgba(255, 255, 255, 0.52);
  --sb-text-label:   rgba(255, 255, 255, 0.36);
  --sb-icon-bg:      rgba(255, 255, 255, 0.10);
  --sb-icon-active:  rgba(255, 255, 255, 0.18);
  --sb-border:       rgba(255, 255, 255, 0.12);
  --sb-chip-bg:      rgba(255, 255, 255, 0.07);

  z-index: 20;
  display: flex;
  height: auto;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--sb-bg);
  padding: 20px 12px;
  border-right: none;
  transition: width 0.2s ease, padding 0.2s ease;
}

@media (min-width: 1024px) {
  .collab-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
  }

  .collab-sidebar--collapsed {
    width: 0;
    padding: 0;
  }
}

.collab-sidebar__header {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: -20px -12px 0;
  padding: 0 16px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--sb-border);
}

@media (min-width: 1024px) {
  .collab-sidebar--collapsed .collab-sidebar__header {
    display: none;
  }
}

.collab-sidebar__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  text-decoration: none;
}

.collab-sidebar__brand-icon {
  display: grid;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 50%;
  border: 4px solid currentColor;
  font-size: 24px;
}

.collab-sidebar__brand-copy {
  min-width: 0;
}

.collab-sidebar__brand-name {
  display: block;
  font-size: 14px;
  line-height: 1;
}

.collab-sidebar__brand-sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--sb-text-sub);
}

.collab-sidebar__toggle {
  position: relative;
  display: grid;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  place-items: center;
  border: 1px solid var(--sb-border);
  border-radius: 8px;
  background: var(--sb-icon-bg);
  color: #fff;
  cursor: pointer;
}

.collab-sidebar__toggle:hover {
  background: var(--sb-bg-hover);
}

.collab-sidebar__toggle-tooltip {
  pointer-events: none;
  position: absolute;
  left: 100%;
  top: 50%;
  z-index: 30;
  margin-left: 8px;
  width: max-content;
  transform: translateY(-50%);
  border-radius: 6px;
  background: #0f172a;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  opacity: 0;
  transition: opacity 0.15s;
}

.collab-sidebar__toggle:hover .collab-sidebar__toggle-tooltip {
  opacity: 1;
}

.collab-sidebar__nav {
  min-height: 0;
  flex: 1;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

@media (min-width: 1024px) {
  .collab-sidebar--collapsed .collab-sidebar__nav {
    display: none;
  }
}

.collab-sidebar__label {
  padding: 0 8px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sb-text-label);
}

.collab-sidebar__divider {
  height: 1px;
  margin: 8px 0;
  background: var(--sb-border);
}

.collab-sidebar__bottom {
  align-self: end;
  width: 100%;
  margin-top: auto;
}

.collab-sidebar__item {
  display: grid;
  min-height: 56px;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--sb-text);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.collab-sidebar__item:hover {
  background: var(--sb-bg-hover);
}

.collab-sidebar__item--active {
  background: var(--sb-bg-active);
  color: #fff;
}

.collab-sidebar__icon {
  display: grid;
  width: 34px;
  height: 36px;
  place-items: center;
  border-radius: 8px;
  font-size: 22px;
  background: var(--sb-icon-bg);
  color: rgba(255, 255, 255, 0.65);
}

.collab-sidebar__item--active .collab-sidebar__icon {
  background: var(--sb-icon-active);
  color: #fff;
}

.collab-sidebar__item-copy {
  min-width: 0;
}

.collab-sidebar__item-name {
  display: block;
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  color: inherit;
}

.collab-sidebar__item-sub {
  display: block;
  overflow: hidden;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--sb-text-sub);
}

.collab-sidebar__item-chevron {
  font-size: 18px;
  color: var(--sb-text-sub);
  transition: transform 0.2s ease;
}

/* Grade group button (3-col layout) */
.collab-sidebar__grade-btn {
  display: grid;
  min-height: 56px;
  grid-template-columns: 34px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 12px;
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--sb-text);
  text-align: left;
  cursor: pointer;
}

.collab-sidebar__grade-btn:hover {
  background: var(--sb-bg-hover);
}

.collab-sidebar__room-list + .collab-sidebar__grade-btn {
  margin-top: 12px;
}

/* Room sub-list */
.collab-sidebar__room-list {
  display: none;
  gap: 4px;
  padding-top: 4px;
}

.collab-sidebar__room-list.is-open {
  display: grid;
}

.collab-sidebar__room-item {
  position: relative;
  display: grid;
  min-height: 40px;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  margin-left: 24px;
  margin-bottom: 6px;
  border-radius: 8px;
  border: 1px solid var(--sb-border);
  background: var(--sb-chip-bg);
  padding: 8px 10px;
  width: calc(100% - 24px);
  color: var(--sb-text);
  text-align: left;
  cursor: pointer;
}

.collab-sidebar__room-item:last-child {
  margin-bottom: 0;
}

.collab-sidebar__room-item:hover {
  background: var(--sb-bg-hover);
}

.collab-sidebar__room-item::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 0;
  height: 50%;
  width: 14px;
  border-bottom-left-radius: 6px;
  border-bottom: 1px solid var(--sb-border);
  border-left: 1px solid var(--sb-border);
}

.collab-sidebar__room-icon {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 6px;
  font-size: 18px;
  background: var(--sb-icon-bg);
  color: rgba(255, 255, 255, 0.65);
}

.collab-sidebar__room-name {
  display: block;
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
  color: inherit;
}

.collab-sidebar__room-sub {
  display: block;
  overflow: hidden;
  font-size: 11px;
  font-weight: 400;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--sb-text-sub);
}

/* Restore button (shown when sidebar is collapsed on desktop) */
.collab-sidebar__restore {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 30;
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 8px;
  border: 1px solid var(--ci-line);
  background: var(--ci-surface);
  color: var(--ci-neutral-600);
  box-shadow: var(--ci-shadow-soft);
  cursor: pointer;
}

.collab-sidebar__restore:hover {
  background: var(--ci-neutral-50);
}

.collab-sidebar__restore-tooltip {
  pointer-events: none;
  position: absolute;
  left: 100%;
  top: 50%;
  margin-left: 8px;
  width: max-content;
  transform: translateY(-50%);
  border-radius: 6px;
  background: #0f172a;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  opacity: 0;
  transition: opacity 0.15s;
}

.collab-sidebar__restore:hover .collab-sidebar__restore-tooltip {
  opacity: 1;
}

@media (min-width: 1024px) {
  .collab-sidebar__restore--visible {
    display: grid;
  }
}

.collab-page {
  min-width: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--ci-page-bg);
}

.collab-header {
  display: flex;
  height: 74px;
  align-items: center;
  border-bottom: var(--ci-header-border-width) solid var(--ci-header-border);
  background: var(--ci-header-bg);
  padding: 0 20px;
  transition: padding-left 0.2s ease;
}

.collab-header__inner {
  display: flex;
  width: 100%;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.collab-header__brand,
.collab-header__actions {
  display: flex;
  min-width: 0;
  align-items: center;
}

.collab-header__brand {
  gap: 12px;
}

.collab-header__actions {
  gap: 16px;
  justify-content: flex-end;
}

.collab-school-badge {
  display: grid;
  width: 40px;
  height: 48px;
  place-items: center;
  border: 1px solid var(--ci-line);
  border-radius: 999px;
  background: var(--ci-surface);
  color: var(--ci-brand);
  font-size: 10px;
  font-weight: 700;
  box-shadow: var(--ci-shadow-card);
}

.collab-school-badge--large {
  width: 52px;
  height: 52px;
  font-size: 26px;
}

.collab-school-logo {
  display: block;
  width: 36px;
  height: 48px;
  object-fit: contain;
}

.collab-school-copy {
  display: grid;
  gap: 2px;
}

.collab-school-name {
  color: var(--ci-ink);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.15;
  white-space: nowrap;
}

.collab-school-subtitle {
  color: var(--ci-neutral-500);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
}

.collab-search {
  position: relative;
  display: none;
  width: 300px;
}

.collab-search__input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--ci-neutral-200);
  border-radius: 999px;
  background: var(--ci-surface);
  padding: 0 44px 0 24px;
  color: var(--ci-neutral-600);
  font-size: 14px;
  outline: none;
  box-shadow: var(--ci-shadow-soft);
}

.collab-search__input::placeholder {
  color: var(--ci-neutral-400);
}

.collab-search__input:focus {
  border-color: var(--ci-brand);
}

.collab-search__icon {
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  color: var(--ci-neutral-500);
  font-size: 24px;
}

.collab-notification {
  position: relative;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ci-neutral-500);
}

.collab-notification:hover {
  background: var(--ci-surface);
}

.collab-notification .material-symbols-rounded {
  font-size: 26px;
}

.collab-notification__dot {
  position: absolute;
  top: 6px;
  right: 8px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--ci-surface);
  border-radius: 999px;
  background: var(--ci-brand);
}

.collab-user {
  display: inline-flex;
  height: 44px;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--ci-neutral-200);
  border-radius: 999px;
  background: var(--ci-surface);
  padding: 0 16px 0 10px;
  color: var(--ci-neutral-900);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 14px;
  font-weight: 700;
  box-shadow: var(--ci-shadow-soft);
}

.collab-user__avatar {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 999px;
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
  font-size: 18px;
}

.collab-user__chevron {
  color: var(--ci-text);
  font-size: 20px;
}

.collab-content {
  flex: 1;
  padding: 28px 24px 36px;
}

.collab-toast {
  position: sticky;
  top: 12px;
  z-index: 15;
  display: inline-flex;
  align-self: center;
  align-items: center;
  gap: 8px;
  margin: 16px 24px 0;
  border: 1px solid rgba(47, 138, 79, 0.22);
  border-radius: 999px;
  background: var(--ci-success-soft);
  padding: 9px 14px;
  color: var(--ci-success);
  font-size: 13px;
  font-weight: 800;
  box-shadow: var(--ci-shadow-card);
}

.collab-toast[hidden] {
  display: none;
}

.collab-toast .material-symbols-rounded {
  font-size: 18px;
}

.collab-view[hidden] {
  display: none;
}

.collab-panel {
  overflow: hidden;
  border: 1px solid var(--ci-line);
  border-radius: 12px;
  background: var(--ci-surface);
  box-shadow: 0 14px 36px rgba(45, 23, 54, 0.07);
}

.collab-panel__header {
  display: flex;
  min-height: 84px;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  background: var(--ci-brand-tint);
  padding: 16px 24px;
  border-bottom: 1px solid var(--ci-line);
}

.collab-panel__title {
  color: var(--ci-ink);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
}

.collab-panel__subtitle {
  margin-top: 3px;
  color: var(--ci-neutral-500);
  font-size: 12px;
}

.collab-year-control {
  display: flex;
  align-items: center;
  gap: 10px;
}

.collab-year-control__label {
  font-size: 13px;
  color: var(--ci-neutral-500);
  white-space: nowrap;
}

.collab-year-control__pills {
  display: flex;
  background: var(--ci-neutral-100);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
}

.collab-year-control__pill {
  height: 30px;
  padding: 0 14px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ci-neutral-500);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.collab-year-control__pill:hover {
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
}

.collab-year-control__pill--active {
  background: var(--ci-brand);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(74, 35, 90, 0.25);
}

.collab-year-control__pill--active:hover {
  background: var(--ci-brand-hover);
  color: #fff;
}

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

.collab-theme-save,
.collab-theme-back,
.collab-theme-reset {
  display: inline-flex;
  height: 40px;
  align-items: center;
  gap: 8px;
  border-radius: 8px;
  padding: 0 16px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.collab-theme-save {
  background: var(--ci-brand);
  color: #fff;
  box-shadow: var(--ci-shadow-soft);
}

.collab-theme-save:hover {
  background: var(--ci-brand-hover);
}

.collab-theme-back,
.collab-theme-reset {
  border: 1px solid var(--ci-line-soft);
  background: var(--ci-surface);
  color: var(--ci-neutral-700);
}

.collab-theme-back:hover,
.collab-theme-reset:hover {
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
}

.collab-theme-save .material-symbols-rounded,
.collab-theme-back .material-symbols-rounded,
.collab-theme-reset .material-symbols-rounded {
  font-size: 19px;
}

.collab-theme {
  display: grid;
  gap: 20px;
  padding: 24px;
}

.collab-theme-card {
  border: 1px solid var(--ci-line-soft);
  border-radius: 10px;
  background: var(--ci-surface);
  padding: 20px;
  box-shadow: var(--ci-shadow-card);
}

.collab-theme-card--school {
  background:
    linear-gradient(135deg, rgba(74, 35, 90, 0.06), rgba(47, 138, 79, 0.05)),
    var(--ci-surface);
}

.collab-theme-card__header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.collab-theme-card__header h3 {
  color: var(--ci-neutral-900);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.25;
}

.collab-theme-card__header p {
  margin-top: 4px;
  color: var(--ci-neutral-500);
  font-size: 13px;
  line-height: 1.5;
}

.collab-theme-card__icon {
  display: grid;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 10px;
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
  font-size: 24px;
}

.collab-theme-card__icon--blue {
  background: var(--ci-blue-soft);
  color: var(--ci-blue);
}

.collab-theme-card__icon--green {
  background: var(--ci-success-soft);
  color: var(--ci-success);
}

.collab-theme-form {
  display: grid;
  gap: 16px;
}

.collab-theme-field {
  display: grid;
  gap: 7px;
}

.collab-theme-field--logo {
  gap: 9px;
}

.collab-theme-field__label {
  color: var(--ci-neutral-700);
  font-size: 12px;
  font-weight: 700;
}

.collab-theme-field input,
.collab-token-field input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 8px;
  background: var(--ci-surface);
  padding: 0 12px;
  color: var(--ci-neutral-900);
  font-size: 13px;
  outline: none;
}

.collab-theme-field input:focus,
.collab-token-field input:focus {
  border-color: var(--ci-brand);
  box-shadow: 0 0 0 3px var(--ci-brand-soft);
}

.collab-theme-logo-control {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 10px;
  background: var(--ci-surface);
  padding: 10px 12px;
}

.collab-theme-logo-control img {
  width: 36px;
  height: 44px;
  object-fit: contain;
}

.collab-theme-logo-control strong,
.collab-theme-logo-control small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collab-theme-logo-control strong {
  color: var(--ci-neutral-900);
  font-size: 13px;
  font-weight: 700;
}

.collab-theme-logo-control small {
  margin-top: 3px;
  color: var(--ci-neutral-500);
  font-size: 12px;
}

.collab-theme-logo-control button {
  height: 34px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 8px;
  background: var(--ci-neutral-50);
  padding: 0 12px;
  color: var(--ci-neutral-700);
  font-size: 12px;
  font-weight: 700;
}

.collab-theme-logo-control button:hover {
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
}

.collab-theme-logo-input {
  display: none;
}

.collab-token-grid {
  display: grid;
  gap: 12px;
}

.collab-brand-builder {
  display: grid;
  gap: 16px;
}

.collab-brand-field {
  display: grid;
  gap: 8px;
}

.collab-brand-field__control {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.collab-brand-field__control input[type="color"] {
  width: 52px;
  height: 42px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 10px;
  background: var(--ci-surface);
  padding: 4px;
  cursor: pointer;
}

.collab-brand-field__control input[type="text"] {
  height: 42px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 8px;
  background: var(--ci-surface);
  padding: 0 12px;
  color: var(--ci-neutral-900);
  font-size: 13px;
  outline: none;
}

.collab-brand-field__control input[type="text"]:focus {
  border-color: var(--ci-brand);
  box-shadow: 0 0 0 3px var(--ci-brand-soft);
}

.collab-derive-list {
  display: grid;
  gap: 12px;
}

.collab-derive-field {
  display: grid;
  gap: 10px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 10px;
  background: var(--ci-neutral-50);
  padding: 14px;
}

.collab-derive-field__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 12px;
}

.collab-derive-field__top strong {
  color: var(--ci-neutral-900);
  font-size: 13px;
  font-weight: 800;
}

.collab-derive-field__top span {
  color: var(--ci-neutral-500);
  font-size: 12px;
  font-weight: 700;
}

.collab-derive-field input[type="range"] {
  width: 100%;
  accent-color: var(--ci-brand);
}

.collab-derived-color {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.collab-derived-color code {
  overflow: hidden;
  color: var(--ci-neutral-700);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collab-token-field {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 10px;
  background: var(--ci-neutral-50);
  padding: 12px;
}

.collab-token-field__swatch {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28);
}

.collab-token-field strong {
  display: block;
  margin-bottom: 7px;
  color: var(--ci-neutral-900);
  font-size: 12px;
  font-weight: 800;
}

.collab-theme-sidebar-preview {
  display: grid;
  gap: 16px;
}

.collab-theme-sidebar-preview__surface {
  display: grid;
  gap: 10px;
  align-content: start;
  min-height: 240px;
  border-radius: 12px;
  background: var(--sb-bg, var(--ci-brand));
  padding: 16px;
  color: var(--sb-text, #fff);
}

.collab-theme-sidebar-preview__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--sb-border, rgba(255, 255, 255, 0.12));
}

.collab-theme-sidebar-preview__brand span {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 3px solid currentColor;
  border-radius: 999px;
  font-size: 20px;
  font-weight: 700;
}

.collab-theme-sidebar-preview__brand strong {
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 14px;
}

.collab-theme-sidebar-preview__item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 46px;
  border-radius: 8px;
  padding: 7px 9px;
  color: var(--sb-text, rgba(255, 255, 255, 0.88));
}

.collab-theme-sidebar-preview__item.is-active {
  background: var(--sb-bg-active, rgba(255, 255, 255, 0.15));
  color: var(--sb-text, #fff);
}

.collab-theme-sidebar-preview__item .material-symbols-rounded {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 8px;
  background: var(--sb-icon-bg, rgba(255, 255, 255, 0.12));
  font-size: 20px;
}

.collab-theme-sidebar-preview__tokens,
.collab-sidebar-settings {
  display: grid;
  gap: 12px;
}

.collab-theme-status {
  min-height: 20px;
  color: var(--ci-success);
  font-size: 13px;
  font-weight: 700;
}

.collab-metrics {
  display: grid;
  gap: 16px;
  padding: 20px 24px;
}

.collab-metric-card {
  display: flex;
  min-height: 100px;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--ci-line-soft);
  border-radius: 10px;
  background: var(--ci-surface);
  padding: 0 22px;
  box-shadow: var(--ci-shadow-card);
}

.collab-metric-card__icon {
  display: grid;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 999px;
  font-size: 30px;
}

.collab-metric-card__icon--blue {
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
}

.collab-metric-card__icon--green {
  background: var(--ci-success-soft);
  color: var(--ci-success);
}

.collab-metric-card__icon--violet {
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
}

.collab-metric-card__label {
  margin-bottom: 6px;
  color: var(--ci-neutral-700);
  font-size: 14px;
}

.collab-metric-card__value {
  color: var(--ci-neutral-900);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 18px;
  line-height: 1;
}

.collab-usage {
  margin: 0 24px 24px;
  border-radius: 8px;
  background: var(--ci-surface);
  padding: 20px 0 0;
}

.collab-usage__title {
  margin-bottom: 14px;
  color: var(--ci-neutral-900);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 16px;
  font-weight: 700;
}

.collab-usage__grid {
  display: grid;
  gap: 16px;
}

.collab-tool-card {
  overflow: hidden;
  border-radius: 8px;
  background: var(--ci-surface);
  box-shadow: var(--ci-shadow-card);
  outline: 1px solid var(--ci-neutral-100);
}

.collab-tool-card::before {
  display: block;
  height: 4px;
  content: "";
}

.collab-tool-card--purple::before {
  background: var(--ci-brand);
}

.collab-tool-card--yellow::before {
  background: var(--ci-warning);
}

.collab-tool-card--green::before {
  background: var(--ci-success);
}

.collab-tool-card--indigo::before {
  background: var(--ci-brand);
}

.collab-tool-card__body {
  padding: 16px 18px;
}

.collab-tool-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.collab-tool-card__icon {
  display: grid;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 12px;
  font-size: 28px;
}

.collab-tool-card__icon--orange {
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
}

.collab-tool-card__icon--cyan {
  background: var(--ci-cyan-soft);
  color: var(--ci-cyan);
}

.collab-tool-card__icon--blue {
  background: var(--ci-blue-soft);
  color: var(--ci-blue);
}

.collab-tool-card__icon--sky {
  background: var(--ci-brand-soft);
  color: var(--ci-brand);
}

.collab-tool-card__copy {
  min-width: 0;
}

.collab-tool-card__copy h4 {
  overflow: hidden;
  color: var(--ci-neutral-900);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collab-tool-card__copy p {
  margin-top: 4px;
  color: var(--ci-neutral-500);
  font-size: 12px;
}

.collab-tool-card__value {
  color: var(--ci-neutral-900);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.collab-tool-card__value span {
  color: var(--ci-neutral-500);
  font-weight: 400;
}

.collab-tool-card__action {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--ci-neutral-100);
  color: var(--ci-brand-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s;
}

.collab-tool-card__action:hover {
  color: var(--ci-brand);
}

.collab-tool-card__action:hover {
  color: var(--ci-brand-hover);
}

.collab-tool-card__action .material-symbols-rounded {
  font-size: 15px;
}

.collab-progress {
  width: 100%;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--ci-neutral-200);
  margin-top: 12px;
}

.collab-progress__bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--ci-progress);
  transition: width 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.collab-roster {
  margin: 0 24px 28px;
  overflow: hidden;
  border: 1px solid var(--ci-line-soft);
  border-radius: 10px;
}

.collab-roster__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px 12px;
}

.collab-roster__title {
  color: var(--ci-neutral-900);
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  font-size: 14px;
  font-weight: 700;
}

.collab-roster__link {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  color: var(--ci-brand);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.collab-roster__link .material-symbols-rounded {
  font-size: 15px;
}

.collab-roster__table-wrap {
  overflow-x: auto;
}

.collab-roster__table {
  width: 100%;
  border-collapse: collapse;
}

.collab-roster__table th {
  padding: 10px 18px;
  background: var(--ci-neutral-50);
  border-top: 1px solid var(--ci-line-soft);
  border-bottom: 1px solid var(--ci-line-soft);
  color: var(--ci-neutral-500);
  font-size: 11px;
  font-weight: 600;
  text-align: left;
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.collab-roster__table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--ci-neutral-100);
  color: var(--ci-neutral-700);
  font-size: 13px;
  vertical-align: middle;
  line-height: 1.5;
}

.collab-roster__table tr:last-child td {
  border-bottom: none;
}

.collab-roster__table tbody tr:hover td {
  background: var(--ci-neutral-50);
}

.collab-status {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.collab-status .material-symbols-rounded {
  font-size: 13px;
}

.collab-status--done {
  background: var(--ci-success-soft);
  color: var(--ci-success);
}

.collab-status--pending {
  background: var(--ci-neutral-100);
  color: var(--ci-neutral-400);
}

.collab-footer__badge-icon {
  font-size: 18px;
}

.collab-footer {
  margin-top: 0;
  border-top: 1px solid var(--ci-line);
  background: var(--ci-surface);
  padding: 12px 28px;
  color: var(--ci-neutral-500);
}

.collab-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
}

.collab-footer__brand {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 0;
}

.collab-footer__brand strong {
  font-family: "FC Subject Rounded", "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  color: var(--ci-brand);
  font-size: 14px;
  line-height: 1;
}

.collab-footer__brand strong:first-child {
  font-size: 15px;
}

.collab-footer__brand .collab-school-badge {
  width: 28px;
  height: 32px;
  font-size: 8px;
  box-shadow: none;
}

.collab-footer__copyright {
  color: var(--ci-neutral-500);
  font-size: 12px;
}

@media (min-width: 1024px) {
  .collab-header,
  .collab-content {
    padding-right: 32px;
    padding-left: 32px;
  }

  .collab-content {
    padding-top: 40px;
    padding-bottom: 48px;
  }

  .collab-sidebar-collapsed .collab-header {
    padding-left: 96px;
  }

  .collab-search {
    display: block;
  }

  .collab-year-control {
    margin-left: auto;
  }

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

  .collab-usage__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .collab-theme {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .collab-theme-card--school {
    grid-row: span 2;
  }

  .collab-token-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .collab-theme-sidebar-preview {
    grid-template-columns: minmax(220px, 0.82fr) minmax(0, 1fr);
  }

  .collab-footer {
    padding-right: 56px;
    padding-left: 56px;
  }

  .collab-footer__inner {
    flex-wrap: nowrap;
  }

}