/* ── CSS Variables ─────────────────────────────────────────────────────────── */
:root {
  --color-primary:       #1B4F72; /* deep navy — trust, authority, expertise */
  --color-primary-dark:  #0E2D45;
  --color-primary-light: #D6EAF8;
  --color-accent:        #E67E22; /* warm orange — achievement, energy, motivation */
  --color-accent-dark:   #CA6F1E;
  --color-success:       #1A9E6F;
  --color-error:         #E74C3C;
  --color-warning:       #F39C12;
  --color-lock:          #A0B4C0;

  --color-bg:            #F4F7FA; /* clean blue-gray — professional, calm */
  --color-bg-card:       #FFFFFF;
  --color-border:        #D5E0EB;
  --color-text:          #0D1B2A;
  --color-text-muted:    #4A6375;
  --color-text-light:    #8BA0B0;

  --font-sans:   'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-size-base: 16px;

  --radius-sm:   4px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --radius-full: 9999px;

  --shadow-sm:   0 1px 3px rgba(14,45,69,0.07);
  --shadow-md:   0 4px 12px rgba(14,45,69,0.11), 0 1px 4px rgba(14,45,69,0.06);
  --shadow-lg:   0 12px 28px rgba(14,45,69,0.13), 0 4px 8px rgba(14,45,69,0.07);

  --transition: 0.2s ease;
  --max-width: 1100px;
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html { font-size: var(--font-size-base); scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ── Layout ────────────────────────────────────────────────────────────────── */
.page-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
}

#main-content {
  flex: 1;
}

/* ── Header / Nav ──────────────────────────────────────────────────────────── */
header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 12px rgba(91,33,182,0.07);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.header-logo span {
  color: var(--color-accent);
}

#nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

#nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

#nav-links a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-admin-link {
  color: var(--color-accent) !important;
  font-weight: 700 !important;
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 0.25rem 0.75rem;
}
.nav-admin-link:hover {
  background: var(--color-accent) !important;
  color: #fff !important;
  text-decoration: none;
}

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.3rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(27,79,114,0.25);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 4px 14px rgba(27,79,114,0.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover { background: var(--color-primary-light); }

.btn--sm  { padding: 0.35rem 0.8rem; font-size: 0.8rem; }
.btn--lg  { padding: 0.85rem 1.85rem; font-size: 1rem; }
.btn--full { width: 100%; }

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, #0A1F33 0%, #0E2D45 45%, #1B4F72 100%);
  color: #fff;
  padding: 5.5rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(230,126,34,0.12) 0%, transparent 60%);
  pointer-events: none;
}

.hero__content {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.9rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.88;
  margin-bottom: 2.25rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.hero .btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  margin-right: 0.75rem;
  box-shadow: 0 4px 14px rgba(230,126,34,0.35);
}
.hero .btn--primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: 0 6px 18px rgba(230,126,34,0.45);
}

.hero .btn--outline {
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}
.hero .btn--outline:hover { background: rgba(255,255,255,0.12); }

/* ── Landing Courses ───────────────────────────────────────────────────────── */
.landing-courses {
  padding: 3.5rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.landing-courses h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1.75rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

/* ── Course Grid / Cards ───────────────────────────────────────────────────── */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.35rem;
}

.course-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.course-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.course-card__body {
  padding: 1.35rem;
  flex: 1;
}

.course-card__category {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 0.22rem 0.65rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 0.8rem;
}

.course-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.course-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.course-card__footer {
  padding: 0.8rem 1.35rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.course-card__footer--stacked {
  flex-direction: column;
  align-items: stretch;
}
.course-card__footer--stacked .btn { text-align: center; }

.badge-enrolled {
  font-size: 0.75rem;
  color: var(--color-success);
  font-weight: 600;
}

/* ── Progress Bar ──────────────────────────────────────────────────────────── */
.progress-bar-wrap {
  background: var(--color-border);
  border-radius: var(--radius-full);
  height: 7px;
  overflow: hidden;
  margin: 0.5rem 0;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
  min-width: 0;
}

.progress-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ── Auth ──────────────────────────────────────────────────────────────────── */
.auth-container {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: linear-gradient(160deg, #F4F7FA 0%, #D6EAF8 100%);
}

.auth-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2.75rem;
  width: 100%;
  max-width: 420px;
}

.auth-card__title {
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 1.75rem;
  color: var(--color-primary-dark);
  letter-spacing: -0.02em;
}

.auth-card__footer {
  margin-top: 1.35rem;
  font-size: 0.875rem;
  text-align: center;
  color: var(--color-text-muted);
}

/* ── Forms ─────────────────────────────────────────────────────────────────── */
.auth-form, .admin-form { display: flex; flex-direction: column; gap: 1rem; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-group input, .form-group select, .form-group textarea {
  padding: 0.65rem 0.95rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27,79,114,0.14);
}

.form-hint {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.password-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.password-wrap input {
  flex: 1;
  padding-right: 2.6rem;
}
.password-toggle {
  position: absolute;
  right: 0.65rem;
  background: none;
  border: none;
  padding: 0.25rem;
  cursor: pointer;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  line-height: 1;
}
.password-toggle:hover { color: var(--color-primary); }
.eye-icon { width: 1.1rem; height: 1.1rem; }

.form-error {
  background: #FEF2F2;
  color: var(--color-error);
  border: 1px solid #FECACA;
  border-radius: var(--radius-md);
  padding: 0.6rem 0.9rem;
  font-size: 0.875rem;
}

.form-success {
  background: #ECFDF5;
  color: var(--color-success);
  border: 1px solid #A7F3D0;
  border-radius: var(--radius-md);
  padding: 0.6rem 0.9rem;
  font-size: 0.875rem;
}

/* ── Course Container ──────────────────────────────────────────────────────── */
.course-container h1.course-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.course-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.course-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.video-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000;
  box-shadow: var(--shadow-md);
}

.course-video {
  width: 100%;
  max-height: 480px;
  display: block;
}

.video-hint {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ── Module List ───────────────────────────────────────────────────────────── */
.module-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.module-item:hover { box-shadow: var(--shadow-sm); transform: translateX(2px); }

.module-item--locked {
  opacity: 0.5;
  cursor: default;
}

.module-item--done {
  border-color: #A7F3D0;
  background: #F0FDF8;
}

.module-item__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.module-item--done .module-item__icon {
  background: var(--color-success);
  color: #fff;
}

.module-item--locked .module-item__icon {
  background: #F1F0F6;
  color: var(--color-lock);
}

.module-item__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.module-item__title { font-weight: 600; font-size: 0.95rem; }
.module-item__status { font-size: 0.8rem; color: var(--color-success); font-weight: 600; }
.module-item__hint { font-size: 0.78rem; color: var(--color-text-muted); }

/* ── PDF Viewer ────────────────────────────────────────────────────────────── */
.module-container h1 { font-size: 1.5rem; font-weight: 800; margin: 1rem 0; letter-spacing: -0.02em; }
.back-btn { margin-bottom: 1rem; }

.pdf-section, .quiz-section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.pdf-section h2, .quiz-section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.pdf-viewer {
  width: 100%;
  height: 600px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

/* ── Quiz ──────────────────────────────────────────────────────────────────── */
#quiz-form { display: flex; flex-direction: column; gap: 1.5rem; }

.quiz-question__text { font-weight: 600; margin-bottom: 0.75rem; }

.quiz-options { display: flex; flex-direction: column; gap: 0.5rem; }

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.65rem 0.95rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  font-size: 0.9rem;
}

.quiz-option:hover { border-color: var(--color-primary); background: var(--color-primary-light); }

.quiz-option input[type="radio"] { margin-top: 0.15rem; accent-color: var(--color-primary); flex-shrink: 0; }

.quiz-result {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
}

.quiz-result--pass { background: #ECFDF5; color: var(--color-success); border: 1px solid #A7F3D0; }
.quiz-result--fail { background: #FEF2F2; color: var(--color-error); border: 1px solid #FECACA; }

/* ── Badges ────────────────────────────────────────────────────────────────── */
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.badge-chip {
  background: linear-gradient(135deg, var(--color-accent), #F0A500);
  color: #fff;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(230,126,34,0.25);
  letter-spacing: 0.01em;
}

.completed-badge {
  color: var(--color-success);
  font-weight: 700;
  font-size: 0.9rem;
}

.complete-label {
  color: var(--color-success);
  font-weight: 700;
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.locked-hint {
  color: var(--color-lock);
  font-style: italic;
  font-size: 0.9rem;
}

/* ── Admin ─────────────────────────────────────────────────────────────────── */
.admin-container h1 { font-size: 1.75rem; font-weight: 800; margin-bottom: 0.5rem; letter-spacing: -0.02em; }

.admin-section {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.admin-section h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1.25rem; }

.admin-course-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-border);
  gap: 1rem;
}

.admin-course-row:last-child { border-bottom: none; }

.admin-course-row__info { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.admin-course-row__id { font-size: 0.78rem; color: var(--color-text-muted); font-family: monospace; }

.status-chip {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
}
.status-chip--published { background: #ECFDF5; color: var(--color-success); }
.status-chip--draft     { background: #F1F0F6; color: var(--color-text-muted); }

/* ── Catalog Category ──────────────────────────────────────────────────────── */
.catalog-category { margin-bottom: 3rem; }
.catalog-category__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.1rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--color-accent);
  color: var(--color-primary-dark);
  letter-spacing: -0.01em;
}

/* ── Dashboard ─────────────────────────────────────────────────────────────── */
.page-container h1 { font-size: 1.75rem; font-weight: 800; margin-bottom: 1.25rem; letter-spacing: -0.02em; }
.page-container h2 { font-size: 1.25rem; font-weight: 700; margin-bottom: 1rem; margin-top: 2rem; }

/* ── Toast Notifications ───────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  max-width: 380px;
  background: var(--color-text);
  color: #fff;
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 1000;
  transform: translateY(1rem);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.toast--visible { transform: translateY(0); opacity: 1; }
.toast--success { background: var(--color-success); }
.toast--error   { background: var(--color-error); }
.toast--info    { background: var(--color-primary); }

/* ── Misc ──────────────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
}

.loading-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  color: var(--color-text-muted);
}

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

/* ── Footer ────────────────────────────────────────────────────────────────── */
footer {
  background: linear-gradient(135deg, #0A1F33 0%, #0E2D45 100%);
  color: rgba(255,255,255,0.65);
  text-align: center;
  padding: 1.75rem 1.5rem;
  font-size: 0.85rem;
  margin-top: auto;
}

footer a { color: rgba(255,255,255,0.85); }

/* ── Admin Tabs ────────────────────────────────────────────────────────────── */
.admin-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0;
}
.admin-tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.6rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  margin-bottom: -2px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  transition: color var(--transition), border-color var(--transition);
}
.admin-tab:hover { color: var(--color-primary); }
.admin-tab--active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* ── Builder Toolbar ───────────────────────────────────────────────────────── */
.builder-toolbar {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

/* ── Builder Cards ─────────────────────────────────────────────────────────── */
.builder-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.builder-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 1rem;
}
.builder-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.builder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

/* ── Module Builder ────────────────────────────────────────────────────────── */
.module-builder {
  background: var(--color-bg-card);
  border: 1.5px solid var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.module-builder__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.module-builder__num {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.95rem;
}
.remove-btn {
  background: none;
  border: 1px solid #FECACA;
  color: var(--color-error);
  border-radius: var(--radius-md);
  padding: 0.25rem 0.65rem;
  font-size: 0.78rem;
  cursor: pointer;
  transition: background var(--transition);
}
.remove-btn:hover { background: #FEF2F2; }

/* ── Quiz Builder ──────────────────────────────────────────────────────────── */
.quiz-builder {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--color-border);
}
.quiz-builder__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.quiz-builder__header strong {
  font-size: 0.9rem;
  color: var(--color-text);
}

/* ── Question Builder ──────────────────────────────────────────────────────── */
.question-builder {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 0.75rem;
}
.question-builder__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}
.question-builder__num {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.remove-question-btn {
  padding: 0.15rem 0.45rem;
  font-size: 0.75rem;
}

/* ── Options Grid ──────────────────────────────────────────────────────────── */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.option-row { display: flex; }
.option-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  cursor: pointer;
}
.option-label input[type="radio"] {
  accent-color: var(--color-primary);
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}
.option-badge {
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 0.1rem 0.4rem;
  flex-shrink: 0;
}
.option-label input[type="text"] {
  flex: 1;
  padding: 0.4rem 0.7rem;
  font-size: 0.875rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  font-family: var(--font-sans);
  outline: none;
}
.option-label input[type="text"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(27,79,114,0.1);
}

/* ── Builder Actions ───────────────────────────────────────────────────────── */
.builder-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
  margin-top: 0.5rem;
}

/* ── Media Picker Card ─────────────────────────────────────────────────────── */
.video-fields-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.media-picker-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
}
.media-picker-card__preview {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: 1;
  min-width: 0;
}
.media-picker-card__icon { font-size: 1.5rem; flex-shrink: 0; }
.media-picker-card__name {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Media Upload Zone ─────────────────────────────────────────────────────── */
.media-upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.media-upload-zone--hover,
.media-upload-zone:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.media-upload-zone__icon { font-size: 2.5rem; }
.media-upload-zone__text { font-weight: 600; color: var(--color-text); }

/* ── Upload Queue ──────────────────────────────────────────────────────────── */
.upload-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
}
.upload-item__info {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  margin-bottom: 0.4rem;
}
.upload-item__size { color: var(--color-text-muted); }
.upload-item__status { font-size: 0.8rem; color: var(--color-text-muted); }
.upload-progress-bar-wrap {
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 0.3rem;
}
.upload-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width 0.2s ease;
}

/* ── Media Library Header ──────────────────────────────────────────────────── */
.media-library-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1.5rem 0 1rem;
}
.media-library-header h3 { font-size: 1rem; font-weight: 700; margin: 0; }
.media-filters { display: flex; gap: 0.35rem; }
.media-filter-btn {
  background: none;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.media-filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.media-filter-btn--active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ── Media Grid ────────────────────────────────────────────────────────────── */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}
/* Picker modal: compact list layout (overrides grid cards) */
.media-grid--modal {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  max-height: 360px;
  overflow-y: auto;
  padding-right: 0.25rem;
}
.media-grid--modal .media-item {
  flex-direction: row;
  align-items: center;
  padding: 0.4rem 0.6rem;
  gap: 0.5rem;
  border-radius: var(--radius-sm);
}
.media-grid--modal .media-item__icon { font-size: 1rem; flex-shrink: 0; }
.media-grid--modal .media-item__name { font-size: 0.78rem; max-width: 220px; }
.media-grid--modal .media-item__size,
.media-grid--modal .media-item__date { display: none; }

.media-item {
  background: var(--color-bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.media-item:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.media-item__icon { font-size: 1.75rem; }
.media-item__info { display: flex; flex-direction: column; gap: 0.15rem; flex: 1; }
.media-item__name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}
.media-item__size { font-size: 0.72rem; color: var(--color-text-muted); }
.media-item__date { font-size: 0.68rem; color: var(--color-text-light); }

/* ── Modal ─────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13,27,42,0.6);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-box {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}
.modal-header h3 { font-size: 1.05rem; font-weight: 700; margin: 0; }
.modal-close {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}
.modal-close:hover { background: var(--color-bg); color: var(--color-error); }
.modal-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  padding: 0 1.5rem;
}
.modal-tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.7rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}
.modal-tab:hover { color: var(--color-primary); }
.modal-tab--active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.modal-tab-panel { padding: 1.25rem 1.5rem; overflow-y: auto; }
.modal-filters { display: flex; gap: 0.35rem; margin-bottom: 1rem; }
.modal-upload-area { display: flex; flex-direction: column; align-items: center; gap: 1rem; padding: 1rem 0; }

/* ── Multi-select quiz hint ─────────────────────────────────────────────────── */
.quiz-multi-hint { font-size: 0.82rem; color: var(--color-accent); font-weight: 600; margin: -0.25rem 0 0.5rem; }

/* ── Question type toggle (admin) ───────────────────────────────────────────── */
.question-type-toggle { display: flex; gap: 1rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.question-type-opt { display: flex; align-items: center; gap: 0.35rem; font-size: 0.85rem; color: var(--color-text-muted); cursor: pointer; }
.question-type-opt input { accent-color: var(--color-primary); }

/* ── Media item picker mode ─────────────────────────────────────────────────── */
.media-item--picker { cursor: default; }
.media-item--picker:hover { border-color: var(--color-primary); background: var(--color-primary-light); }

/* ── Certificate ────────────────────────────────────────────────────────────── */
.certificate-page { display: flex; flex-direction: column; align-items: center; padding: 2rem 1rem; gap: 1.5rem; background: var(--color-bg); min-height: 100vh; }
.certificate-actions-bar { display: flex; gap: 1rem; }
.certificate-actions-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 0.75rem; }
.certificate-earned { display: flex; flex-direction: column; align-items: flex-start; gap: 0.25rem; }

.certificate {
  width: 780px;
  max-width: 100%;
  background: #fff;
  box-shadow: var(--shadow-lg);
  padding: 0.75rem;
  font-family: var(--font-sans);
}
.certificate__border {
  border: 3px solid var(--color-primary);
  padding: 3rem 3.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
  position: relative;
}
.certificate__border::before,
.certificate__border::after {
  content: '';
  position: absolute;
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-accent);
}
.certificate__border::before { top: 6px; left: 6px; border-right: none; border-bottom: none; }
.certificate__border::after  { bottom: 6px; right: 6px; border-left: none; border-top: none; }

.certificate__header { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; }
.certificate__logo-text { font-size: 2.2rem; font-weight: 800; color: var(--color-primary); letter-spacing: 0.08em; }
.certificate__org-name { font-size: 0.78rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.12em; }

.certificate__divider { width: 60%; height: 2px; background: linear-gradient(90deg, transparent, var(--color-accent), transparent); }

.certificate__body { display: flex; flex-direction: column; align-items: center; gap: 0.6rem; }
.certificate__type { font-size: 1.1rem; font-weight: 700; color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.15em; }
.certificate__certifies { font-size: 0.95rem; color: var(--color-text-muted); margin: 0; }
.certificate__name { font-size: 2.4rem; font-weight: 700; color: var(--color-primary); margin: 0.25rem 0; line-height: 1.2; }
.certificate__program-label { font-size: 0.95rem; color: var(--color-text-muted); margin: 0; }
.certificate__course-title { font-size: 1.35rem; font-weight: 600; color: var(--color-accent); margin: 0.1rem 0 0.5rem; }
.certificate__date { font-size: 0.9rem; color: var(--color-text-muted); }

.certificate__footer { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.certificate__seal { font-size: 1rem; color: var(--color-accent); letter-spacing: 0.4em; font-weight: 600; }
.certificate__validation { font-size: 0.78rem; color: var(--color-text-light); margin: 0; }
.certificate__validation strong { color: var(--color-text-muted); font-family: monospace; }

/* Print styles */
@media print {
  .no-print { display: none !important; }
  header, footer, .certificate-actions-bar { display: none !important; }
  body { background: white !important; }
  .certificate-page { padding: 0 !important; background: white !important; }
  .certificate { box-shadow: none !important; width: 100% !important; }
}

/* ── Reading Gate ────────────────────────────────────────────────────────────── */
.reading-gate {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--color-primary-light);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border: 1px solid var(--color-border);
  border-top: none;
}
.reading-gate--done { background: #ECFDF5; border-color: #A7F3D0; }
.reading-done-badge { color: var(--color-success); font-weight: 700; font-size: 0.9rem; }

/* ── Quiz Locked ─────────────────────────────────────────────────────────────── */
.quiz-section--locked {
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
}
.quiz-section--locked h2 { text-align: center; color: var(--color-text-muted); }
.quiz-locked-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-text-muted);
  text-align: center;
  font-size: 0.95rem;
}
.quiz-lock-icon { font-size: 2.2rem; }

/* ── Star Rating ─────────────────────────────────────────────────────────────── */
.star-rating-section {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  width: 100%;
}
.star-rating-section h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--color-text); }
.star-picker { display: flex; gap: 0.2rem; }
.star-btn {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: var(--color-accent);
  padding: 0.1rem 0.15rem;
  transition: transform var(--transition);
  line-height: 1;
}
.star-btn:hover { transform: scale(1.2); }
.star-display { font-size: 1.75rem; color: var(--color-accent); letter-spacing: 0.05rem; }
.rating-saved { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 0.25rem; }

/* ── Admin Reset Zone ────────────────────────────────────────────────────────── */
.admin-reset-zone {
  display: flex;
  justify-content: flex-end;
  margin: 0.5rem 0 1rem;
}
.btn--danger { border-color: var(--color-error) !important; color: var(--color-error) !important; }
.btn--danger:hover { background: #FEF2F2 !important; }

/* ── Instructor Info in Course View ──────────────────────────────────────────── */
.course-instructor {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}
.course-instructor__photo {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-primary-light);
  flex-shrink: 0;
}
.course-instructor__photo-placeholder {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.course-instructor__info { display: flex; flex-direction: column; gap: 0.2rem; }
.course-instructor__name { font-weight: 700; font-size: 0.95rem; }
.course-instructor__bio { font-size: 0.85rem; color: var(--color-text-muted); }
.course-instructor__cv { font-size: 0.82rem; color: var(--color-primary); }

/* ── Instructor Panel ────────────────────────────────────────────────────────── */
.instructor-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.instructor-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 1rem; color: var(--color-primary-dark); }
.instructor-course-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
  gap: 1rem;
  flex-wrap: wrap;
}
.instructor-course-row:last-child { border-bottom: none; }
.earnings-coming-soon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem;
  color: var(--color-text-muted);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-style: italic;
}

/* ── Earnings Dashboard (mock) ───────────────────────────────────────────────── */
.earnings-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.earnings-header h3 { margin-bottom: 0; }
.earnings-mock-badge {
  font-size: 0.7rem;
  font-weight: 700;
  background: rgba(230,126,34,0.12);
  color: var(--color-accent-dark);
  border: 1px solid rgba(230,126,34,0.3);
  border-radius: var(--radius-full);
  padding: 0.2rem 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.earnings-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.75rem;
}
.earnings-stat-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.earnings-stat-card__value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.02em;
}
.earnings-stat-card__cents {
  font-size: 1rem;
  font-weight: 600;
}
.earnings-stat-card__label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 500;
}
.earnings-section-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 1.5rem 0 0.75rem;
}
.earnings-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: 0.5rem;
}
.earnings-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.earnings-table th {
  background: var(--color-bg);
  padding: 0.65rem 0.9rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--color-border);
}
.earnings-table td {
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}
.earnings-table tbody tr:last-child td { border-bottom: none; }
.earnings-table tfoot td {
  background: var(--color-bg);
  border-top: 2px solid var(--color-border);
  border-bottom: none;
}
.earnings-amount {
  font-weight: 700;
  color: var(--color-success);
  white-space: nowrap;
}
.earnings-activity-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.earnings-activity-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}
.earnings-activity-item:last-child { border-bottom: none; }
.earnings-activity-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 0.05rem; }
.earnings-activity-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
}
.earnings-activity-time {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.earnings-note {
  font-size: 0.78rem;
  color: var(--color-text-light);
  font-style: italic;
  margin-top: 1.25rem;
  text-align: center;
}

/* ── Role Selector (registration) ───────────────────────────────────────────── */
.role-selector {
  display: flex;
  gap: 1.25rem;
  margin-top: 0.25rem;
  flex-wrap: wrap;
}
.role-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), background var(--transition);
}
.role-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.role-option input { accent-color: var(--color-primary); }

/* ── Admin — User Management ─────────────────────────────────────────────────── */
.user-lookup-form {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.user-lookup-form input { flex: 1; min-width: 220px; }
.user-result-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}
.user-result-info { display: flex; flex-direction: column; gap: 0.25rem; }
.user-result-name { font-weight: 700; }
.user-result-email { font-size: 0.85rem; color: var(--color-text-muted); }
.user-result-role { font-size: 0.82rem; font-weight: 600; color: var(--color-primary); }

/* ── Media Workspace (two-column) ───────────────────────────────────────────── */
.media-workspace {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.25rem;
  align-items: start;
}
.media-groups-panel {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: sticky;
  top: 80px;
}
.media-groups-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}
.new-group-row {
  display: flex;
  gap: 0.35rem;
  padding: 0.5rem 0.65rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-primary-light);
}
.new-group-row input { flex: 1; font-size: 0.78rem; min-width: 0; }
.groups-list { display: flex; flex-direction: column; max-height: 420px; overflow-y: auto; }
.group-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 0.85rem;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
.group-item:last-child { border-bottom: none; }
.group-item:hover { background: var(--color-primary-light); }
.group-item--active {
  background: var(--color-primary-light);
  border-left: 3px solid var(--color-primary);
  padding-left: calc(0.85rem - 3px);
}
.group-item__icon { font-size: 0.88rem; flex-shrink: 0; }
.group-item__name {
  font-size: 0.79rem;
  font-weight: 500;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.group-delete-btn {
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 0.65rem;
  cursor: pointer;
  padding: 0.15rem 0.3rem;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity var(--transition), color var(--transition);
  flex-shrink: 0;
}
.group-item:hover .group-delete-btn { opacity: 1; }
.group-delete-btn:hover { color: var(--color-error); }
.media-files-panel { display: flex; flex-direction: column; gap: 1rem; min-width: 0; }
/* ── Modal group bar ─────────────────────────────────────────────────────────── */
.modal-group-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}
.modal-group-bar label { font-size: 0.85rem; font-weight: 600; white-space: nowrap; }
.modal-group-bar select { flex: 1; }

/* ── Import Description Box ──────────────────────────────────────────────────── */
.import-description {
  background: var(--color-primary-light);
  border: 1px solid rgba(27,79,114,0.25);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-primary-dark);
  line-height: 1.6;
}

/* ── Hero Stats Bar ──────────────────────────────────────────────────────────── */
.hero-stats {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 3rem;
  padding-top: 2.25rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0 1rem;
  border-right: 1px solid rgba(255,255,255,0.1);
}
.hero-stat:last-child { border-right: none; }
.hero-stat__value { font-size: 1.65rem; font-weight: 800; color: #fff; letter-spacing: -0.02em; line-height: 1; }
.hero-stat__label { font-size: 0.68rem; color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 0.06em; text-align: center; }

/* ── Mission Strip ───────────────────────────────────────────────────────────── */
.mission-strip {
  background: var(--color-accent);
  color: #fff;
  text-align: center;
  padding: 1.35rem 2rem;
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ── Section Header ──────────────────────────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: 2.25rem; }
.section-eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  margin-bottom: 0.4rem;
}
.section-header h2 { margin: 0.4rem 0 0.5rem; }
.section-header p { color: var(--color-text-muted); font-size: 0.9rem; max-width: 480px; margin: 0 auto; line-height: 1.65; }

/* ── Programs Section ────────────────────────────────────────────────────────── */
.programs-section { padding-top: 3.5rem; padding-bottom: 3.5rem; }
.program-badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  padding: 0.18rem 0.55rem;
  white-space: nowrap;
}
.program-badge--available { background: #ECFDF5; color: var(--color-success); }
.program-badge--soon { background: var(--color-bg); color: var(--color-text-muted); border: 1px solid var(--color-border); }
.course-card--available { border-color: var(--color-accent) !important; border-width: 2px !important; }

/* ── Values Section ──────────────────────────────────────────────────────────── */
.values-section { background: var(--color-bg); padding: 3.5rem 0; }
.values-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.value-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.value-card__num { font-size: 2rem; font-weight: 800; color: var(--color-primary-light); display: block; line-height: 1; margin-bottom: 0.5rem; }
.value-card__title { font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-primary-dark); margin-bottom: 0.5rem; }
.value-card__desc { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.65; }

/* ── Director Section ────────────────────────────────────────────────────────── */
.director-section { background: var(--color-primary-dark); padding: 3.5rem 0; }
.director-layout { display: grid; grid-template-columns: 300px 1fr; gap: 3rem; align-items: start; }
.director-profile-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}
.director-avatar {
  width: 68px; height: 68px; border-radius: 50%;
  background: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; font-weight: 800; color: #fff;
  margin: 0 auto 0.85rem;
}
.director-name { font-size: 0.9rem; font-weight: 700; color: #fff; text-align: center; margin-bottom: 0.2rem; }
.director-role { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: rgba(255,255,255,0.45); text-align: center; margin-bottom: 1rem; }
.director-divider { height: 1px; background: rgba(255,255,255,0.1); margin-bottom: 1rem; }
.director-career { display: flex; flex-direction: column; gap: 0.8rem; }
.director-career-item { display: flex; flex-direction: column; gap: 0.1rem; }
.director-career-item strong { font-size: 0.8rem; color: rgba(255,255,255,0.88); }
.director-career-item span { font-size: 0.75rem; color: rgba(255,255,255,0.5); }
.director-career-years { color: var(--color-accent) !important; font-size: 0.72rem !important; }
.director-bio .section-eyebrow { color: var(--color-accent); }
.director-bio h2 { color: #fff; margin: 0.4rem 0 1rem; }
.director-bio p { color: rgba(255,255,255,0.72); font-size: 0.9rem; line-height: 1.8; margin-bottom: 0.85rem; }
.director-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; }
.director-metric { display: flex; flex-direction: column; gap: 0.2rem; }
.director-metric__value { font-size: 1.4rem; font-weight: 800; color: var(--color-accent); letter-spacing: -0.02em; }
.director-metric__label { font-size: 0.72rem; color: rgba(255,255,255,0.5); line-height: 1.4; }

/* ── Landing CTA ─────────────────────────────────────────────────────────────── */
.landing-cta-section { background: var(--color-bg); padding: 3.5rem 0; }
.landing-cta-box {
  background: var(--color-primary-dark);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}
.landing-cta-box .section-eyebrow { color: var(--color-accent); }
.landing-cta-box h2 { color: #fff; margin: 0.4rem 0 1rem; }
.landing-cta-box p { color: rgba(255,255,255,0.7); font-size: 0.9rem; line-height: 1.7; margin-bottom: 1.5rem; }
.landing-cta-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.landing-cta-box .btn--outline { color: #fff; border-color: rgba(255,255,255,0.4); }
.landing-cta-box .btn--outline:hover { background: rgba(255,255,255,0.1); }

/* ── Quiz Attempt Limit ──────────────────────────────────────────────────────── */
.quiz-max-attempts { color: var(--color-error); font-size: 0.85rem; margin-top: 0.5rem; }
.quiz-attempts-remaining { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 0.25rem; }

/* ── Admin Notifications Table ───────────────────────────────────────────────── */
.notifications-table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--color-border); margin-top: 0.5rem; }
.notifications-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.notifications-table th {
  background: var(--color-bg);
  padding: 0.65rem 0.9rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--color-border);
}
.notifications-table td { padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--color-border); }
.notifications-table tbody tr:last-child td { border-bottom: none; }
.notifications-table tbody tr:hover { background: var(--color-bg); }

/* ── Responsive — new landing sections ──────────────────────────────────────── */
@media (max-width: 768px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
  .hero-stat { border-right: none; padding-bottom: 1rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .hero-stat:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.08); }
  .hero-stat:nth-child(3), .hero-stat:nth-child(4) { border-bottom: none; }
  .director-layout { grid-template-columns: 1fr; }
  .director-metrics { grid-template-columns: 1fr 1fr; }
  .landing-cta-box { padding: 2rem 1.25rem; }
  .landing-cta-actions { flex-direction: column; align-items: center; }
}

/* ── Admin View-Mode Switcher ────────────────────────────────────────────────── */
.admin-mode-switcher {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(13,27,42,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  z-index: 950;
  box-shadow: 0 4px 20px rgba(0,0,0,0.35);
  white-space: nowrap;
}
.admin-mode-label {
  color: rgba(255,255,255,0.5);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.mode-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.65);
  border-radius: var(--radius-full);
  padding: 0.28rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
}
.mode-btn:hover {
  border-color: rgba(255,255,255,0.55);
  color: #fff;
}
.mode-btn--active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

/* ── File Upload Row (instructor profile) ───────────────────────────────────── */
.file-upload-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.file-upload-row input[type="text"] {
  flex: 1;
  min-width: 180px;
}
.upload-inline-status {
  font-size: 0.8rem;
  margin-top: 0.25rem;
  color: var(--color-text-muted);
}
.upload-inline-status--ok  { color: var(--color-success); font-weight: 500; }
.upload-inline-status--err { color: var(--color-error);   font-weight: 500; }
.input-readonly {
  background: var(--color-bg);
  cursor: not-allowed;
  opacity: 0.75;
}

/* ── Pedagogical Guide ───────────────────────────────────────────────────────── */
.guia-doc {
  max-width: 860px;
}
.guia-doc h2 {
  font-size: 1.3rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.3rem;
}
.guia-doc h3 {
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.35rem;
}
.guia-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-style: italic;
}
.guia-doc ul {
  padding-left: 1.4rem;
  margin: 0.5rem 0;
}
.guia-doc ul li {
  margin-bottom: 0.3rem;
  font-size: 0.92rem;
  color: var(--color-text);
}
.guia-doc p {
  font-size: 0.92rem;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}
.guia-table-wrap {
  overflow-x: auto;
  margin: 0.75rem 0 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.guia-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}
.guia-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 0.55rem 0.75rem;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}
.guia-table td {
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--color-border);
  vertical-align: top;
  color: var(--color-text);
  line-height: 1.45;
}
.guia-table tr:nth-child(even) td { background: var(--color-bg); }
.guia-note {
  font-size: 0.82rem;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-left: 3px solid var(--color-primary);
  padding: 0.6rem 0.85rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 0.5rem 0 1rem;
}
.guia-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.75rem;
}
.guia-check-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.85rem;
  font-size: 0.88rem;
}
.guia-check-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  min-width: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  margin-top: 0.1rem;
}

/* ── Group item actions (rename + delete) ───────────────────────────────────── */
.group-item__actions {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
  flex-shrink: 0;
}
.group-rename-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 0.75rem;
  padding: 0.1rem 0.2rem;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity 0.15s;
  line-height: 1;
}
.group-item:hover .group-rename-btn { opacity: 1; }
.group-rename-input {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  color: var(--color-text);
  font-family: var(--font-sans);
  outline: none;
}

/* ── Media sort buttons ──────────────────────────────────────────────────────── */
.media-filter-sep {
  color: var(--color-border);
  padding: 0 0.1rem;
  font-size: 0.85rem;
  user-select: none;
}
.media-sort-btn--active {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
  font-weight: 600;
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .header-logo span.logo-full { display: none; }
  .header-inner { padding: 0 1rem; }
  .auth-card { padding: 1.75rem 1.25rem; }
  .course-grid { grid-template-columns: 1fr; }
  .pdf-viewer { height: 400px; }
  .hero { padding: 3.5rem 1rem; }
  .page-container { padding: 1.5rem 1rem; }
  .toast { right: 1rem; left: 1rem; max-width: none; }
}