/* ══════════════════════════════════════════════════
   COURSE ADMIN — FULL THEME
   Redesigned: individual buttons, rich dropdowns,
   generous spacing between all elements
   ══════════════════════════════════════════════════ */

/* ── RESET & BASE ── */
.course-admin {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.course-admin .hidden  { display: none !important; }
.course-extras.hidden  { display: none !important; }

.course-admin .surface {
  background: linear-gradient(145deg, #fff, #F9FCFF);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}


/* ══════════════════════════════════
   HERO
   ══════════════════════════════════ */
.course-admin .hero {
  padding: 36px 40px;
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  border-radius: 24px;
  border: 1px solid rgba(14, 165, 233, 0.12);
  background: 
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.08), transparent 40%),
    radial-gradient(circle at bottom left, rgba(2, 132, 199, 0.05), transparent 40%),
    #fff;
  box-shadow: 
    0 1px 2px rgba(15, 23, 42, 0.05),
    0 20px 40px -12px rgba(15, 23, 42, 0.08);
  position: relative;
  overflow: hidden;
}

.course-admin .hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.course-admin .brand { 
  display: flex; 
  gap: 24px; 
  align-items: center; 
  position: relative;
  z-index: 1;
}

.course-admin .logo {
  width: 64px; 
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #fff;
  display: grid; 
  place-items: center;
  font-weight: 800;
  font-size: 1.4rem;
  box-shadow: 
    0 10px 25px -5px rgba(14, 165, 233, 0.4),
    0 4px 10px -2px rgba(14, 165, 233, 0.3);
  letter-spacing: -0.5px;
  flex-shrink: 0;
  position: relative;
}

.course-admin .logo::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  pointer-events: none;
}

.course-admin .brand-copy h2 { 
  font-size: 1.5rem; 
  margin-bottom: 6px; 
  letter-spacing: -0.5px; 
  color: var(--text-primary);
  font-weight: 800;
}

.course-admin .brand-copy .subline { 
  color: var(--text-secondary); 
  font-size: 0.95rem; 
  max-width: 440px;
  line-height: 1.5;
}

.course-admin .eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.65rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.course-admin .alert { 
  min-width: 220px; 
  font-size: 0.85rem; 
  font-weight: 600;
  color: var(--text-secondary); 
  text-align: right;
  padding: 10px 16px;
  background: #F8FAFC;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.1);
  position: relative;
  z-index: 1;
}


/* ══════════════════════════════════
   RESOURCE TABS
   ══════════════════════════════════ */
.resource-tabs { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.resource-tab {
  border: 1px solid rgba(148,163,184,.35);
  background: #fff;
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: .84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s ease;
  box-shadow: 0 1px 3px rgba(15,23,42,.05);
}
.resource-tab:hover:not(.active) {
  background: #F1F5F9;
  border-color: rgba(148,163,184,.6);
  color: var(--text-primary);
}
.resource-tab.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(14,165,233,.32);
}


/* ══════════════════════════════════
   STATS GRID
   ══════════════════════════════════ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.stat-card {
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}
.stat-card p  { color: var(--text-secondary); font-size: .82rem; margin-bottom: 4px; }
.stat-card h3 { font-size: 1.4rem; }
.stat-pill {
  padding: 7px 13px;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.stat-pill.neutral { background: #ecfeff; color: #0891b2; }
.stat-pill.accent  { background: #fef3c7; color: #b45309; }


/* ══════════════════════════════════
   WORKSPACE LAYOUT
   ══════════════════════════════════ */
.course-workspace {
  display: grid;
  grid-template-areas:
    "toolbar"
    "selector"
    "editor";
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.course-workspace.has-editor {
  grid-template-areas:
    "toolbar"
    "editor";
  grid-template-columns: 1fr;
  gap: 20px;
}

.course-workspace.has-editor .selector-screen {
  display: none !important;
}

.course-admin.editor-active .course-extras {
  display: none !important;
}


/* ══════════════════════════════════
   TOOLBAR — App Command Bar
   ══════════════════════════════════ */
.course-toolbar {
  grid-area: toolbar;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(148,163,184,0.22);
  border-radius: 13px;
  box-shadow:
    0 1px 0 rgba(255,255,255,.9) inset,
    0 2px 8px rgba(15,23,42,.06);
  position: sticky;
  top: 16px;
  z-index: 60;
}

.toolbar-left,
.toolbar-right {
  display: flex;
  gap: 4px;
  align-items: center;
}

.toolbar-divider {
  width: 1px;
  height: 22px;
  background: rgba(148,163,184,.3);
  margin: 0 8px;
  flex-shrink: 0;
}

/* ── All toolbar buttons share this base ── */
.course-toolbar button {
  height: 36px;
  padding: 0 14px;
  border-radius: 9px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: .84rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  transition:
    background  .13s ease,
    color       .13s ease,
    border-color .13s ease,
    box-shadow  .13s ease;
}
.course-toolbar button:hover {
  background: #F1F5F9;
  color: var(--text-primary);
  border-color: rgba(148,163,184,.35);
}
.course-toolbar button:active { background: #E2E8F0; }
.course-toolbar button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(14,165,233,.22);
  border-color: var(--accent);
}

/* Save / primary CTA */
.course-toolbar .primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(14,165,233,.35);
  padding: 0 18px;
  font-weight: 700;
}
.course-toolbar .primary:hover {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  box-shadow: 0 6px 20px rgba(14,165,233,.45);
  color: #fff !important;
}

/* Ghost / secondary */
.course-toolbar .ghost {
  background: #F8FAFC;
  border-color: rgba(148,163,184,.32);
  color: var(--text-primary);
}
.course-toolbar .ghost:hover {
  background: #EFF6FF;
  border-color: rgba(14,165,233,.3);
  color: var(--accent);
}

/* Danger in toolbar */
.course-toolbar .danger {
  color: #b91c1c;
}
.course-toolbar .danger:hover {
  background: #FFF1F2;
  border-color: #fecdd3;
  color: #b91c1c;
}

/* Icon-only toolbar button */
.course-toolbar .icon-btn {
  width: 36px;
  padding: 0;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
}
.course-toolbar .icon-btn:hover { color: var(--text-primary); }


/* ══════════════════════════════════
   GLOBAL BUTTON SYSTEM
   Every button variant has distinct,
   individual identity
   ══════════════════════════════════ */

/* Base reset — apply to every button in .course-admin */
.course-admin button {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: .875rem;
  font-weight: 600;
  border-radius: 9px;
  border: 1px solid rgba(148,163,184,0.32);
  padding: 10px 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  line-height: 1;
  transition:
    transform    .11s ease,
    box-shadow   .13s ease,
    border-color .12s ease,
    background   .12s ease,
    color        .12s ease;

  /* default: clean white button */
  background: linear-gradient(180deg, #ffffff 0%, #F4F7FB 100%);
  color: var(--text-primary);
  box-shadow:
    0 1px 0 rgba(255,255,255,.85) inset,
    0 1px 3px rgba(15,23,42,.09),
    0 2px 6px rgba(15,23,42,.06);
}
.course-admin button:hover {
  transform: translateY(-1px);
  border-color: rgba(14,165,233,.4);
  box-shadow:
    0 1px 0 rgba(255,255,255,.85) inset,
    0 4px 14px rgba(14,165,233,.18);
  background: linear-gradient(180deg, #ffffff 0%, #EBF5FF 100%);
}
.course-admin button:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(15,23,42,.08) inset;
}
.course-admin button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(14,165,233,.24);
  border-color: var(--accent);
}

/* ── PRIMARY — Blue gradient CTA ── */
.course-admin .primary,
#course-form button[type="submit"],
#create-action-label,
#topic-create-btn,
#subtopic-create-btn {
  background: linear-gradient(135deg, #38BDF8 0%, var(--accent) 40%, var(--accent-strong) 100%);
  color: #fff !important;
  border-color: transparent;
  box-shadow:
    0 1px 0 rgba(255,255,255,.25) inset,
    0 4px 16px rgba(14,165,233,.35),
    0 1px 4px rgba(14,165,233,.2);
  font-weight: 700;
}
.course-admin .primary:hover,
#course-form button[type="submit"]:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  box-shadow:
    0 1px 0 rgba(255,255,255,.2) inset,
    0 6px 22px rgba(14,165,233,.45);
  transform: translateY(-1px);
}

/* ── GHOST — Subtle outline button ── */
.course-admin .ghost,
#toggle-controls-btn,
#toggle-editor-btn,
#refresh-courses,
#back-to-selector,
#preview-brochure,
.selector-actions button {
  background: #F8FAFC;
  border: 1px solid rgba(148,163,184,.35);
  color: var(--text-primary);
  box-shadow: none;
  font-weight: 600;
}
.course-admin .ghost:hover,
#refresh-courses:hover,
#back-to-selector:hover,
#preview-brochure:hover,
.selector-actions button:hover {
  background: #EFF6FF;
  border-color: rgba(14,165,233,.35);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(14,165,233,.12);
}

/* ── DANGER — Destructive red button ── */
.course-admin .danger,
.inline-actions .danger,
#delete-course,
#topic-delete-btn,
#subtopic-delete-btn,
#confirm-delete {
  background: linear-gradient(180deg, #FFF5F5 0%, #FFF1F2 100%);
  color: #b91c1c !important;
  border: 1px solid #fecdd3;
  box-shadow: none;
  font-weight: 600;
}
.course-admin .danger:hover,
.inline-actions .danger:hover,
#delete-course:hover,
#topic-delete-btn:hover,
#subtopic-delete-btn:hover {
  background: linear-gradient(180deg, #FFE4E6 0%, #FECDD3 100%);
  border-color: #fb7185;
  color: #991b1b !important;
  box-shadow: 0 3px 10px rgba(239,68,68,.15);
  transform: translateY(-1px);
}

/* ── SUCCESS — Green confirm button ── */
.course-admin .success {
  background: linear-gradient(135deg, #34D399, #10B981);
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(16,185,129,.3);
  font-weight: 700;
}
.course-admin .success:hover {
  box-shadow: 0 6px 20px rgba(16,185,129,.4);
  transform: translateY(-1px);
}

/* ── NEUTRAL / SECONDARY — Flat mid-tone ── */
.course-admin .secondary {
  background: linear-gradient(180deg, #F1F5F9 0%, #E2E8F0 100%);
  color: #475569;
  border-color: rgba(148,163,184,.4);
  box-shadow: none;
}
.course-admin .secondary:hover {
  background: linear-gradient(180deg, #E2E8F0 0%, #CBD5E1 100%);
  color: #334155;
  transform: translateY(-1px);
}

/* ── Upload / dashed action ── */
.upload-button,
.thumbnail-actions .upload-button,
.topic-banner-actions .upload-button {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  padding: 9px 14px !important;
  border: 1.5px dashed rgba(148,163,184,.55) !important;
  border-radius: 9px !important;
  background: #F8FAFC !important;
  color: var(--text-secondary) !important;
  font-size: .84rem;
  cursor: pointer;
  box-shadow: none !important;
  transition: border-color .13s ease, background .13s ease, color .13s ease;
}
.upload-button:hover,
.thumbnail-actions .upload-button:hover,
.topic-banner-actions .upload-button:hover {
  border-color: var(--accent) !important;
  background: #EFF6FF !important;
  color: var(--accent) !important;
  transform: none !important;
  box-shadow: none !important;
}

/* ── SIZE MODIFIERS ── */
.course-admin button.btn-sm {
  height: 32px;
  padding: 0 11px;
  font-size: .8rem;
  border-radius: 7px;
  gap: 5px;
}
.course-admin button.btn-xs {
  height: 26px;
  padding: 0 9px;
  font-size: .75rem;
  border-radius: 6px;
  gap: 4px;
}
.course-admin button.btn-lg {
  height: 46px;
  padding: 0 22px;
  font-size: .95rem;
  border-radius: 11px;
}

/* ── Icon-only button ── */
.course-admin button.icon-btn {
  width: 38px;
  height: 38px;
  padding: 0;
  justify-content: center;
  font-size: 1rem;
}
.course-admin button.icon-btn.btn-sm { width: 32px; height: 32px; }


/* ══════════════════════════════════
   DROPDOWN / SELECT — Rich Styling
   ══════════════════════════════════ */

/* Wrapper: position relative so the custom arrow works */
.select-wrapper {
  position: relative;
  display: block;
}
.select-wrapper::after {
  content: '';
  position: absolute;
  right: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid #64748B;
  pointer-events: none;
  transition: transform .15s ease, border-top-color .15s ease;
}
.select-wrapper:focus-within::after {
  border-top-color: var(--accent);
  transform: translateY(-50%) rotate(0deg);
}

.course-admin select {
  width: 100%;
  height: 44px;
  padding: 0 40px 0 13px;           /* right pad for arrow */
  border: 1.5px solid rgba(148,163,184,0.42);
  border-radius: 9px;
  font-size: .9rem;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-weight: 500;
  color: var(--text-primary);
  background: #FAFBFD;
  box-shadow: inset 0 1px 3px rgba(15,23,42,.06);
  cursor: pointer;
  transition:
    border-color .15s ease,
    box-shadow   .15s ease,
    background   .13s ease;

  /* remove native arrow */
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.course-admin select:hover:not(:focus) {
  border-color: rgba(148,163,184,.72);
  background: #fff;
}

.course-admin select:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow:
    inset 0 1px 2px rgba(15,23,42,.04),
    0 0 0 3px rgba(14,165,233,.18);
}

/* ── <select> option styling (Chrome/Edge) ── */
.course-admin select option {
  padding: 10px 14px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-primary);
  background: #ffffff;
  line-height: 1.6;
}
.course-admin select option:checked {
  background: linear-gradient(90deg, #EFF6FF, #DBEAFE);
  color: var(--accent);
  font-weight: 700;
}
.course-admin select option:hover {
  background: #F0F9FF;
}

/* ── Inline selector controls ── */
.selector-controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.selector-controls select {
  width: auto;
  min-width: 170px;
}


/* ══════════════════════════════════
   FORM CONTROLS — All Inputs
   ══════════════════════════════════ */
.course-admin input,
.course-admin textarea,
.course-admin select {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-weight: 500;
}

.course-admin input[type="text"],
.course-admin input[type="number"],
.course-admin input[type="file"] {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid rgba(148,163,184,0.42);
  border-radius: 9px;
  font-size: .9rem;
  background: #FAFBFD;
  color: var(--text-primary);
  box-shadow: inset 0 1px 3px rgba(15,23,42,.06);
  transition:
    border-color .15s ease,
    box-shadow   .15s ease,
    background   .12s ease;
}

.course-admin input[type="text"],
.course-admin input[type="number"] {
  height: 44px;
  line-height: 1;
}

.course-admin textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid rgba(148,163,184,0.42);
  border-radius: 9px;
  font-size: .9rem;
  background: #FAFBFD;
  color: var(--text-primary);
  box-shadow: inset 0 1px 3px rgba(15,23,42,.06);
  line-height: 1.65;
  min-height: 120px;
  resize: vertical;
  transition:
    border-color .15s ease,
    box-shadow   .15s ease,
    background   .12s ease;
}

/* Focus state — strong visible ring */
.course-admin input:focus,
.course-admin textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow:
    inset 0 1px 2px rgba(15,23,42,.03),
    0 0 0 3.5px rgba(14,165,233,.18);
}

/* Hover state */
.course-admin input:hover:not(:focus),
.course-admin textarea:hover:not(:focus) {
  border-color: rgba(148,163,184,.72);
  background: #fff;
}

/* ── Label system ── */
.course-admin label {
  display: grid;
  gap: 6px;
  font-size: .8rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: .01em;
}
.course-admin label > span,
.course-admin label > small { display: block; }
.course-admin label small   {
  font-size: .78rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0;
}

/* ── Field group: label + hint + input ── */
.field-group {
  display: grid;
  gap: 7px;
}
.field-label {
  font-size: .76rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.field-hint {
  font-size: .78rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-top: -4px;
}


/* ══════════════════════════════════
   SELECTOR SCREEN
   ══════════════════════════════════ */
.selector-screen {
  grid-area: selector;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
}

.selector-hero {
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: var(--radius);
}
.selector-hero h3 { font-size: 1rem; margin-top: 4px; }
.panel-hint       { color: var(--text-secondary); font-size: .85rem; }

.selector-create {
  padding: 20px;
  display: grid;
  gap: 14px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148,163,184,0.25);
  background: linear-gradient(145deg, #fff, #f3f8ff);
}

.selector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.selector-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
  text-align: left;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.selector-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
}

.selector-card.create-card {
  border: 2px dashed rgba(14, 165, 233, 0.25);
  background: linear-gradient(145deg, #fff, #f0f9ff);
  justify-content: center;
  align-items: center;
  padding: 32px 20px;
  min-height: 320px;
}

.selector-card.create-card .selector-card-body {
  align-items: center;
  text-align: center;
  padding: 0;
  flex: 0;
}

.selector-card-thumb {
  width: 100%;
  height: 160px;
  background: #f1f5f9;
  border-radius: 0;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: .85rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.selector-card-thumb.create-thumb {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 800;
  font-size: 2rem;
  margin-bottom: 16px;
  border-bottom: none;
}

.selector-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.selector-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
  color: var(--text-primary);
  font-weight: 700;
}

.selector-card-body small {
  color: var(--text-secondary);
  font-size: 0.8rem;
  display: block;
  margin-bottom: 12px;
}

.selector-card-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0 0 16px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.selector-card-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
  margin-bottom: 16px;
}

.selector-card-meta span {
  background: #f1f5f9;
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.selector-card-actions {
  display: flex;
  gap: 10px;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  padding-top: 16px;
}

.selector-card-actions button {
  flex: 1;
  justify-content: center;
  padding: 8px 12px;
  font-size: 0.85rem;
}
.selector-card-actions .danger { /* inherits global danger */ }
.selector-empty { color: var(--text-secondary); font-size: .9rem; text-align: center; padding: 10px; }


/* ── TOGGLE CHIP ── */
.toggle-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: .84rem;
  font-weight: 700;
  border: 1px solid rgba(148,163,184,0.38);
  background: #fff;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: background .13s ease, border-color .13s ease;
}
.toggle-chip:hover { background: #F0F9FF; border-color: rgba(14,165,233,.35); }
.toggle-chip .toggle-icon { font-size: .85rem; }
.brochure-copy.collapsed { background: linear-gradient(145deg, #f6f9ff, #ffffff); }
.brochure-copy.collapsed .brochure-fields { display: none; }


/* ══════════════════════════════════
   EDITOR PANEL
   ══════════════════════════════════ */
.editor-panel {
  grid-area: editor;
  border-radius: 16px;
  box-shadow:
    0 0 0 1px rgba(148,163,184,.2),
    0 8px 32px rgba(15,23,42,.07);
  border: none;
  background: #ffffff;
  position: sticky;
  top: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 120px);
}

/* ── Tab bar (optional chrome) ── */
.editor-tab-bar {
  display: flex;
  align-items: stretch;
  background: #F8FAFC;
  border-bottom: 1px solid rgba(148,163,184,.18);
  padding: 0 14px;
  min-height: 42px;
  overflow-x: auto;
  gap: 2px;
}
.editor-tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 16px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color .12s ease, border-color .12s ease;
}
.editor-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: #fff;
}
.editor-tab:hover:not(.active) { color: var(--text-primary); }

/* ── Editor header / action bar ── */
.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 24px;
  background: #FAFBFD;
  border-bottom: 1px solid rgba(148,163,184,.16);
  position: sticky;
  top: 0;
  z-index: 101;
}
.editor-meta h3    { font-size: 1rem; letter-spacing: -0.2px; margin: 0 0 2px; }
.editor-meta small { color: var(--text-secondary); font-size: .8rem; }

/* ── Editor action button strip ── */
.editor-actions {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-wrap: nowrap;
}
.editor-actions button {
  height: 34px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: .8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition:
    background    .12s ease,
    color         .12s ease,
    border-color  .12s ease,
    box-shadow    .12s ease;
  box-shadow: none;
  transform: none !important; /* override global hover lift in this strip */
}
.editor-actions button:hover {
  background: #EFF6FF;
  color: var(--accent);
  border-color: rgba(14,165,233,.25);
  transform: none !important;
}
.editor-actions button:active { background: #DBEAFE; }

.editor-actions .act-divider {
  width: 1px;
  height: 20px;
  background: rgba(148,163,184,.3);
  margin: 0 4px;
  flex-shrink: 0;
}

/* Primary save in editor actions */
.editor-actions .primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong)) !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: 0 3px 12px rgba(14,165,233,.32) !important;
  padding: 0 16px;
  font-weight: 700;
}
.editor-actions .primary:hover {
  box-shadow: 0 5px 18px rgba(14,165,233,.4) !important;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent)) !important;
}

/* Danger in editor actions */
.editor-actions .danger {
  color: #b91c1c !important;
}
.editor-actions .danger:hover {
  background: #FFF1F2 !important;
  border-color: #fecdd3 !important;
}

/* Back button */
.back-button {
  color: var(--text-secondary) !important;
}
.back-button:hover {
  background: #F1F5F9 !important;
  color: var(--text-primary) !important;
  border-color: rgba(148,163,184,.35) !important;
}

/* Icon-only in editor actions */
.editor-actions .icon-btn {
  width: 34px;
  padding: 0;
  justify-content: center;
  font-size: .95rem;
}

/* ── Editor form body ── */
.editor-panel form { padding: 22px 24px; }
.editor-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  background: #fff;
}

.editor-empty {
  text-align: center;
  padding: 60px 28px;
  color: var(--text-secondary);
  margin: 20px;
  background: linear-gradient(145deg, #fff, #f8fbff);
  border: 1.5px dashed rgba(148,163,184,.45);
  border-radius: 14px;
}


/* ══════════════════════════════════
   EDITOR STACKING / SUB-PANELS
   ══════════════════════════════════ */
.stack { display: grid; gap: 16px; }

.panel + .panel,
.course-details + .import-panel,
.import-panel + .brochure-copy,
.brochure-copy + .order-panel,
.order-panel + .topic-switchers { margin-top: 16px; }

.editor-panel label > span,
.editor-panel label > small { display: block; }
.editor-panel label small   { color: var(--text-secondary); font-weight: 500; }
.editor-panel .section-head { margin-bottom: 10px; }
.editor-panel h4,
.editor-panel h5 { letter-spacing: -0.1px; }


/* ══════════════════════════════════
   DETAIL / IMPORT / BROCHURE PANELS
   ══════════════════════════════════ */
.course-details { display: grid; gap: 18px; }
.course-details,
.import-panel,
.brochure-copy,
.order-panel,
.topic-switchers {
  padding: 22px;
  border: 1px solid rgba(148,163,184,.28);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9);
  display: grid;
  gap: 18px;
}

.order-panel.collapsed { background: linear-gradient(145deg, #f6f9ff, #ffffff); }
.order-panel.collapsed .order-fields { display: none; }

.reorder-container {
  display: grid;
  gap: 12px;
  padding: 10px 0;
}

.reorder-item {
  background: #fff;
  border: 1px solid rgba(148,163,184,0.2);
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: grab;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  user-select: none;
  position: relative;
}

.reorder-item:hover {
  background: #f8fbff;
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}

.reorder-item.dragging {
  opacity: 0.5;
  cursor: grabbing;
  transform: scale(0.98);
}

.reorder-item-header {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

.drag-handle {
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}

.reorder-subtopics {
  margin-left: 32px;
  display: grid;
  gap: 8px;
  border-left: 2px dashed rgba(148,163,184,0.2);
  padding-left: 16px;
  padding-top: 4px;
}

.reorder-subtopic-item {
  background: #f1f5f9;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: grab;
  transition: all 0.2s;
}

.reorder-subtopic-item:hover {
  background: #e2e8f0;
  border-color: rgba(14, 165, 233, 0.3);
}

.reorder-subtopic-item.dragging {
  opacity: 0.5;
  transform: scale(0.95);
}

.reorder-item.drag-over-top {
  border-top: 3px solid var(--accent);
}

.reorder-item.drag-over-bottom {
  border-bottom: 3px solid var(--accent);
}

.reorder-subtopic-item.drag-over-top {
  border-top: 2px solid var(--accent);
}

.reorder-subtopic-item.drag-over-bottom {
  border-bottom: 2px solid var(--accent);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
}

.thumbnail-field .thumbnail-control {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  align-items: start;
}
.thumbnail-preview {
  width: 140px; height: 96px;
  border-radius: 10px;
  background: linear-gradient(135deg, #E0F2FE, #FFFFFF);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); font-size: .85rem;
  background-size: cover; background-position: center;
  border: 1.5px dashed rgba(148,163,184,.5);
}
.thumbnail-actions { display: flex; flex-direction: column; gap: 10px; }
.details-note { color: var(--text-secondary); font-size: .85rem; line-height: 1.5; }
label > span, label > small { display: block; }

.paid-access-grid .checkbox-field { display: grid; gap: 10px; }
.checkbox-line {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 600;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 8px 0;
}
.panel-header h5 { font-size: .93rem; }

.selector-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

/* Inline edit row */
.inline-edit,
.inline-create {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}
.inline-actions { display: flex; gap: 8px; }

.topic-banner-field   { display: grid; gap: 10px; margin: 10px 0; }
.topic-banner-actions { display: flex; gap: 10px; align-items: center; }


/* ══════════════════════════════════
   TOPICS
   ══════════════════════════════════ */
#topics-container { display: grid; gap: 16px; }
.topic-card {
  padding: 18px;
  border: 1px solid rgba(148,163,184,.28);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 14px;
}
.topic-card h4        { margin: 0; }
.subtopic-list        { display: grid; gap: 10px; margin-top: 4px; }
.subtopic-card {
  padding: 12px 14px;
  border: 1.5px dashed rgba(148,163,184,.5);
  border-radius: 9px;
  background: #F8FAFC;
  font-size: .9rem;
}


/* ══════════════════════════════════
   FORM ACTIONS — Sticky Save Bar
   ══════════════════════════════════ */
.form-actions {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  z-index: 999;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  pointer-events: none;
}
.form-actions button {
  pointer-events: auto;
  height: 54px;
  padding: 0 32px;
  border-radius: 27px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  border: none;
  box-shadow: 0 12px 28px rgba(14, 165, 233, 0.4);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 10px;
}
.form-actions button:hover {
  background: var(--accent-strong);
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(14, 165, 233, 0.5);
}
.form-actions button:active {
  transform: translateY(1px);
}


/* ══════════════════════════════════
   MODAL
   ══════════════════════════════════ */
.modal {
  position: fixed; inset: 0;
  display: none;
  align-items: center; justify-content: center;
  background: rgba(15, 23, 42, 0.4);
  z-index: 500;
  backdrop-filter: blur(8px);
}
.modal.show { display: flex; }
.modal-card {
  background: #fff;
  padding: 32px;
  border-radius: 24px;
  width: min(440px, 92vw);
  box-shadow:
    0 25px 50px -12px rgba(15, 23, 42, 0.25),
    0 0 0 1px rgba(148, 163, 184, 0.1);
  display: grid;
  gap: 20px;
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 16px;
}

.danger-icon {
  width: 48px;
  height: 48px;
  background: #FEF2F2;
  color: #DC2626;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
}

.modal-card h3 { font-size: 1.25rem; margin: 0; font-weight: 800; letter-spacing: -0.3px; }
.modal-card p  { color: var(--text-secondary); font-size: .95rem; margin: 0; line-height: 1.6; }

.confirmation-steps {
  background: #F8FAFC;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.1);
}

.confirmation-steps label {
  cursor: pointer;
  padding: 4px 0;
}

.confirmation-steps input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  accent-color: #DC2626;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 8px;
}

.modal-actions button {
  height: 44px;
  padding: 0 20px;
  border-radius: 12px;
}

#confirm-delete.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(1);
}


/* ══════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════ */
@media (max-width: 900px) {
  .course-workspace,
  .course-workspace.has-editor {
    grid-template-columns: 1fr;
    grid-template-areas:
      "toolbar"
      "selector"
      "editor";
  }
}

@media (max-width: 720px) {
  .course-admin .hero {
    flex-direction: column;
    align-items: flex-start;
  }
  .thumbnail-field .thumbnail-control {
    grid-template-columns: 1fr;
  }
  .editor-actions button span {
    display: none;           /* icon-only on small screens */
  }
  .editor-actions .icon-btn {
    width: 34px;
  }
  .form-actions {
    bottom: 1.5rem;
    right: 1.5rem;
  }
  .editor-body {
    padding: 16px;
  }
}