/* ============================================================
   EduMotion — Custom Stylesheet
   Digunakan bersama Tailwind CSS CDN
   ============================================================ */

/* --- GOOGLE FONTS --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* --- DESIGN TOKENS --- */
:root {
  --bg:           #09090f;
  --bg2:          #0f0f1a;
  --glass:        rgba(255,255,255,0.04);
  --glass-2:      rgba(255,255,255,0.07);
  --border:       rgba(255,255,255,0.08);
  --border-2:     rgba(255,255,255,0.14);
  --primary:      #6366f1;
  --primary-dark: #4f46e5;
  --primary-glow: rgba(99,102,241,0.3);
  --accent:       #06b6d4;
  --accent-glow:  rgba(6,182,212,0.25);
  --success:      #10b981;
  --danger:       #ef4444;
  --warn:         #f59e0b;
  --text:         #e2e8f0;
  --muted:        #64748b;
  --r:            12px;
  --r-lg:         16px;
  --r-xl:         24px;
}

/* --- RESET & BASE --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom scrollbar */
::-webkit-scrollbar        { width: 5px; height: 5px; }
::-webkit-scrollbar-track  { background: transparent; }
::-webkit-scrollbar-thumb  { background: rgba(255,255,255,0.12); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.22); }

/* ============================================================
   UTILITY
   ============================================================ */
.gradient-text {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-border {
  border: 1px solid transparent;
  background-clip: padding-box;
}

.glass {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: var(--r);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all .2s ease;
  white-space: nowrap;
  line-height: 1;
}
.btn:active { transform: scale(.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
  color: #fff;
  box-shadow: 0 4px 16px var(--primary-glow);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px var(--primary-glow); }

.btn-secondary {
  background: var(--glass);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--glass-2); border-color: var(--border-2); }

.btn-danger {
  background: rgba(239,68,68,.1);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,.2);
}
.btn-danger:hover { background: rgba(239,68,68,.18); }

.btn-success {
  background: rgba(16,185,129,.1);
  color: var(--success);
  border: 1px solid rgba(16,185,129,.2);
}
.btn-success:hover { background: rgba(16,185,129,.18); }

.btn-accent {\n  background: linear-gradient(135deg, var(--accent) 0%, #0ea5e9 100%);\n  color: #fff;\n  box-shadow: 0 4px 16px var(--accent-glow);\n}
.btn-accent:hover { transform: translateY(-1px); box-shadow: 0 8px 24px var(--accent-glow); }

.btn-quiz {
  background: rgba(245,158,11,.1);
  color: #f59e0b;
  border: 1px solid rgba(245,158,11,.25);
}
.btn-quiz:hover { background: rgba(245,158,11,.2); border-color: rgba(245,158,11,.4); }

.btn-sm  { padding: 6px 14px; font-size: 12px; }
.btn-lg  { padding: 14px 28px; font-size: 16px; }
.btn-icon { padding: 8px; border-radius: 50%; }

/* ============================================================
   ADMIN LAYOUT
   ============================================================ */
.admin-wrap { display: flex; min-height: 100vh; }

/* Sidebar */
.admin-sidebar {
  width: 248px;
  flex-shrink: 0;
  background: rgba(9,9,15,.97);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 18px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}

.sidebar-logo-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  box-shadow: 0 0 20px var(--primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.sidebar-logo-text { flex: 1; }
.sidebar-logo-name { font-size: 15px; font-weight: 800; color: var(--text); line-height: 1.2; }
.sidebar-logo-sub  { font-size: 11px; color: var(--muted); }

.sidebar-nav { padding: 16px 12px; flex: 1; }

.sidebar-section-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
  padding: 8px 8px 4px;
  margin-top: 8px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 10px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all .18s ease;
  margin-bottom: 2px;
}
.sidebar-link:hover { background: rgba(99,102,241,.08); color: #c4c6f5; }
.sidebar-link.active {
  background: rgba(99,102,241,.14);
  color: var(--primary);
  border: 1px solid rgba(99,102,241,.2);
}
.sidebar-link-icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border);
}

/* Topbar */
.admin-topbar {
  height: 60px;
  background: rgba(9,9,15,.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.admin-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.admin-content { flex: 1; overflow-y: auto; padding: 28px 28px; }

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: all .25s ease;
}
.card:hover {
  border-color: rgba(99,102,241,.25);
  box-shadow: 0 0 0 1px rgba(99,102,241,.08), 0 20px 50px rgba(0,0,0,.35);
  transform: translateY(-2px);
}

.card-stat {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px;
  position: relative;
  overflow: hidden;
}
.card-stat::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header {
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.page-title     { font-size: 22px; font-weight: 800; color: var(--text); }
.page-subtitle  { font-size: 13px; color: var(--muted); margin-top: 3px; }

.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--border-2); }
.breadcrumb-current { color: var(--text); font-weight: 500; }

/* ============================================================
   TABLE
   ============================================================ */
.table-wrap {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.data-table { width: 100%; border-collapse: collapse; }
.data-table thead th {
  text-align: left;
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  background: rgba(0,0,0,.2);
  border-bottom: 1px solid var(--border);
}
.data-table tbody tr { border-bottom: 1px solid var(--border); transition: background .12s; }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: rgba(255,255,255,.02); }
.data-table tbody td { padding: 14px 16px; font-size: 14px; vertical-align: middle; }

/* ============================================================
   FORMS
   ============================================================ */
.form-group { margin-bottom: 20px; }
.form-row    { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 16px; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  margin-bottom: 8px;
}
.form-label span { color: var(--danger); margin-left: 2px; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: rgba(0,0,0,.25);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 11px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: all .18s ease;
  outline: none;
  appearance: none;
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--muted); }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary);
  background: rgba(99,102,241,.05);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-textarea { resize: vertical; min-height: 120px; line-height: 1.6; }
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
  cursor: pointer;
}
.form-select option { background: #1a1a2e; color: var(--text); }
.form-hint { font-size: 12px; color: var(--muted); margin-top: 5px; }

/* ============================================================
   BADGES
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.badge-published { background: rgba(16,185,129,.12); color: var(--success); border: 1px solid rgba(16,185,129,.2); }
.badge-draft     { background: rgba(100,116,139,.1);  color: var(--muted);   border: 1px solid var(--border); }
.badge-primary   { background: rgba(99,102,241,.12); color: var(--primary); border: 1px solid rgba(99,102,241,.2); }

/* ============================================================
   BLOCK REPEATER (Admin Form)
   ============================================================ */
.blocks-container { display: flex; flex-direction: column; gap: 14px; }

.block-item {
  background: rgba(0,0,0,.18);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px;
  transition: border-color .2s;
  position: relative;
}
.block-item:focus-within { border-color: rgba(99,102,241,.3); }

.block-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.block-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.block-type-select { max-width: 200px; }

.block-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--r);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  position: relative;
}
.upload-area:hover,
.upload-area.dragover { border-color: var(--primary); background: rgba(99,102,241,.04); }

.upload-placeholder p { font-size: 13px; color: var(--muted); margin: 4px 0; }
.upload-icon { font-size: 32px; margin-bottom: 6px; display: block; }

.file-preview {
  background: rgba(99,102,241,.08);
  border: 1px solid rgba(99,102,241,.2);
  border-radius: 8px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--primary);
}

.media-preview-img {
  max-height: 120px;
  border-radius: 8px;
  object-fit: cover;
  margin: 8px auto;
  display: block;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}
.empty-state-icon { font-size: 48px; margin-bottom: 12px; display: block; opacity: .5; }
.empty-state h3   { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.empty-state p    { font-size: 14px; }

/* ============================================================
   STUDENT – HOME PAGE
   ============================================================ */
.student-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  height: 64px;
  background: rgba(9,9,15,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
}

.student-hero {
  min-height: 55vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 24px 60px;
  position: relative;
}

.hero-bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: .12;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.03em;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--muted);
  max-width: 600px;
  margin: 16px auto 0;
  line-height: 1.7;
}

.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.subject-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 28px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.subject-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform .3s ease;
  transform-origin: left;
}
.subject-card:hover::before { transform: scaleX(1); }
.subject-card:hover {
  border-color: rgba(99,102,241,.3);
  transform: translateY(-5px);
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
}

.subject-card-icon { font-size: 36px; margin-bottom: 14px; display: block; }
.subject-card-code {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--primary);
  background: rgba(99,102,241,.1);
  border: 1px solid rgba(99,102,241,.2);
  padding: 3px 9px;
  border-radius: 99px;
  display: inline-block;
  margin-bottom: 10px;
}
.subject-card-name { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.subject-card-meta { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }

/* Lesson card (subject detail page) */
.lesson-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px 24px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all .25s ease;
}
.lesson-card:hover {
  border-color: rgba(6,182,212,.3);
  background: rgba(6,182,212,.04);
  transform: translateX(4px);
}
.lesson-card-icon {
  width: 48px; height: 48px;
  border-radius: var(--r);
  background: linear-gradient(135deg, var(--accent), #0ea5e9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px var(--accent-glow);
}
.lesson-card-body { flex: 1; min-width: 0; }
.lesson-card-title   { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.lesson-card-summary { font-size: 13px; color: var(--muted); line-height: 1.5; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lesson-card-arrow   { color: var(--muted); font-size: 18px; flex-shrink: 0; transition: transform .2s; }
.lesson-card:hover .lesson-card-arrow { transform: translateX(4px); color: var(--accent); }

/* ============================================================
   STUDENT – SWIPER PRESENTATION VIEW
   ============================================================ */
.student-view {
  background:
    radial-gradient(ellipse at 15% 40%, rgba(99,102,241,.14) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 15%, rgba(139,92,246,.12) 0%, transparent 50%),
    radial-gradient(ellipse at 55% 85%, rgba(6,182,212,.1)  0%, transparent 50%),
    var(--bg);
  height: 100vh;
  overflow: hidden;
  position: relative;
}

/* Progress bar */
.progress-track {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: rgba(255,255,255,.07);
  z-index: 100;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width .4s cubic-bezier(.4,0,.2,1);
}

/* Lesson top bar */
.lesson-topbar {
  position: fixed;
  top: 3px; left: 0; right: 0;
  height: 58px;
  background: rgba(9,9,15,.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 90;
}

.lesson-topbar-logo { font-size: 15px; font-weight: 800; text-decoration: none; }
.lesson-subject-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 99px;
  background: rgba(99,102,241,.12);
  color: var(--primary);
  border: 1px solid rgba(99,102,241,.2);
}
.slide-counter {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  background: var(--glass);
  border: 1px solid var(--border);
  padding: 5px 14px;
  border-radius: 99px;
}

/* Swiper */
.lesson-swiper { width: 100%; height: 100vh; }

.swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 28px 28px;
}

/* Slide card glassmorphism */
.slide-card {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  background: rgba(255,255,255,.04);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 28px;
  padding: 52px;
  position: relative;
  overflow: hidden;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.slide-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
}

/* Intro slide */
.slide-intro-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
  background: rgba(6,182,212,.1);
  border: 1px solid rgba(6,182,212,.2);
  padding: 5px 14px;
  border-radius: 99px;
  margin-bottom: 20px;
}

.slide-title {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.025em;
  margin-bottom: 18px;
}

.slide-summary {
  font-size: 16px;
  color: #ffffff;
  line-height: 1.75;
}

/* Text block */
.block-text-content {
  font-size: 16px;
  line-height: 1.85;
  color: #ffffff;
  white-space: pre-line;
}

/* Image block */
.block-image-wrap {
  text-align: center;
}
.block-image-wrap img {
  max-width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.block-caption {
  font-size: 13px;
  color: #ffffff;
  margin-top: 10px;
  font-style: italic;
  text-align: center;
}

/* Video block */
.block-video-wrap video,
.block-video-wrap iframe {
  width: 100%;
  max-height: 380px;
  border-radius: 16px;
  background: #000;
}
.block-video-wrap iframe { aspect-ratio: 16/9; }

/* Done slide */
.slide-done-icon {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--success), #34d399);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin: 0 auto 24px;
  box-shadow: 0 0 40px rgba(16,185,129,.4);
}

/* Navigation buttons */
.swiper-nav {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 90;
  background: rgba(9,9,15,.8);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 8px 12px;
}

.swiper-nav-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .2s ease;
  color: var(--text);
  font-size: 18px;
}
.swiper-nav-btn:hover:not(:disabled) {
  background: rgba(99,102,241,.15);
  border-color: rgba(99,102,241,.35);
  color: var(--primary);
}
.swiper-nav-btn:disabled { opacity: .35; cursor: not-allowed; }

/* ============================================================
   RICH TEXT CONTENT (output dari CKEditor di halaman siswa)
   ============================================================ */
.lesson-rich-text { line-height: 1.8; }
.lesson-rich-text ul { list-style: disc; padding-left: 1.6em; margin: .5em 0; }
.lesson-rich-text ol { list-style: decimal; padding-left: 1.6em; margin: .5em 0; }
.lesson-rich-text li { margin: .3em 0; }
.lesson-rich-text h2 { font-size: 1.35em; font-weight: 700; margin: .6em 0 .3em; }
.lesson-rich-text h3 { font-size: 1.15em; font-weight: 700; margin: .5em 0 .25em; }
.lesson-rich-text blockquote {
  border-left: 3px solid var(--primary);
  padding-left: 14px;
  color: var(--muted);
  margin: 10px 0;
  font-style: italic;
}
.lesson-rich-text pre {
  background: rgba(0,0,0,.4);
  border-radius: 8px;
  color: var(--accent);
  padding: 12px 16px;
  font-size: .9em;
  overflow-x: auto;
}
.lesson-rich-text code { color: var(--accent); font-size: .9em; }
.lesson-rich-text a { color: var(--accent); text-decoration: underline; }
.lesson-rich-text strong { font-weight: 700; }
.lesson-rich-text em { font-style: italic; }

/* Gambar dalam rich text CKEditor — responsive di semua ukuran layar */
.lesson-rich-text img,
.lesson-rich-text figure img,
.lesson-rich-text .image img {
  max-width: 100% !important;
  height: auto !important;
}
.lesson-rich-text figure.image,
.lesson-rich-text .image {
  max-width: 100% !important;
}
/* HP: perlebar gambar CKEditor agar terlihat jelas */
@media (max-width: 640px) {
  .lesson-rich-text img,
  .lesson-rich-text figure img,
  .lesson-rich-text .image img {
    width: 100% !important;
  }
  .lesson-rich-text figure.image,
  .lesson-rich-text .image {
    width: 100% !important;
  }
}

/* Floating image animation */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33%       { transform: translateY(-14px) rotate(.5deg); }
  66%       { transform: translateY(-8px) rotate(-.3deg); }
}
.float-img { animation: float 5s ease-in-out infinite; }

/* GSAP animate-in initial state — hanya untuk desktop (>= 900px) */
@media (min-width: 900px) {
  .animate-in { opacity: 0; }
  .gsap-ready .animate-in { opacity: 0; }
  html:not(.gsap-ready) .animate-in { opacity: 1; transition: opacity .5s; }
}
/* HP/tablet: langsung tampilkan tanpa animasi */
@media (max-width: 899px) {
  .animate-in { opacity: 1 !important; transform: none !important; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .admin-sidebar { width: 64px; }
  .sidebar-logo-text, .sidebar-section-label, .sidebar-link span { display: none; }
  .sidebar-logo { justify-content: center; padding: 16px; }
  .sidebar-link { justify-content: center; padding: 10px; }
  .admin-content { padding: 18px; }
}

@media (max-width: 640px) {
  .slide-card {
    padding: 24px 18px;
    overflow: visible;        /* biarkan konten tidak terpotong */
    overflow-y: visible;
    max-height: none;         /* biarkan slide bisa scroll normal */
  }
  .swiper-slide {
    padding: 70px 12px 80px;
    height: auto;             /* tinggi menyesuaikan konten */
    min-height: 100vh;
  }
  .lesson-swiper { height: auto; min-height: 100vh; }

  /* Gambar di mobile: batasi dengan vw agar muat layar kecil */
  .block-image-wrap { margin: 8px 0; }
  .block-image-wrap img {
    max-height: min(55vw, 280px);
    width: auto;
    max-width: 100%;
  }

  /* Nonaktifkan float animation di mobile (cegah clipping & boros baterai) */
  .float-img { animation: none !important; }

  .hero-title { font-size: 2.2rem; }
  .slide-title { font-size: 1.5rem; }
  .block-text-content { font-size: 15px; }
}

/* ============================================================
   FULLSCREEN MODE
   ============================================================ */
:fullscreen .swiper-slide {
  padding: 0;
}
:-webkit-full-screen .swiper-slide {
  padding: 0;
}

:fullscreen .slide-card {
  max-width: 100% !important;
  max-height: 100vh !important;
  height: 100vh !important;
  border-radius: 0 !important;
  border: none !important;
  padding: 70px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
:-webkit-full-screen .slide-card {
  max-width: 100% !important;
  max-height: 100vh !important;
  height: 100vh !important;
  border-radius: 0 !important;
  border: none !important;
  padding: 70px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

:fullscreen .slide-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
}
:-webkit-full-screen .slide-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
}

:fullscreen .slide-summary,
:fullscreen .block-text-content {
  font-size: 20px;
  line-height: 1.85;
}
:-webkit-full-screen .slide-summary,
:-webkit-full-screen .block-text-content {
  font-size: 20px;
  line-height: 1.85;
}

:fullscreen .block-image-wrap img {
  max-height: 600px;
}
:-webkit-full-screen .block-image-wrap img {
  max-height: 600px;
}

:fullscreen .block-video-wrap video,
:fullscreen .block-video-wrap iframe {
  max-height: 650px;
}
:-webkit-full-screen .block-video-wrap video,
:-webkit-full-screen .block-video-wrap iframe {
  max-height: 650px;
}

.slide-card,
.slide-title,
.slide-summary,
.block-text-content,
.block-image-wrap img {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Fullscreen Nav adjustments */
.swiper-nav.in-fullscreen {
  position: static;
  transform: none;
  background: transparent;
  border: none;
  padding: 0;
  gap: 8px;
}

.swiper-nav.in-fullscreen .swiper-nav-btn {
  width: 34px;
  height: 34px;
  font-size: 14px;
}

/* ============================================================
   QUIZ — Admin Kelola Soal
   ============================================================ */

/* --- Question Card List --- */
.quiz-question-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.quiz-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 28px 24px;
  transition: border-color .2s;
}
.quiz-card:hover { border-color: var(--border-2); }

.quiz-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.quiz-number {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #f59e0b;
  background: rgba(245,158,11,.1);
  border: 1px solid rgba(245,158,11,.2);
  padding: 4px 12px;
  border-radius: 99px;
}

.quiz-card-actions { display: flex; gap: 8px; }

.quiz-question-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* --- Options Grid (view) --- */
.quiz-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(0,0,0,.2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 12px 14px;
  transition: all .18s;
}

.quiz-option--correct {
  background: rgba(16,185,129,.08);
  border-color: rgba(16,185,129,.3);
}

.quiz-option-label {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

.quiz-option--correct .quiz-option-label {
  background: rgba(16,185,129,.2);
  border-color: var(--success);
  color: var(--success);
}

.quiz-option-text {
  font-size: 13px;
  color: var(--text);
  flex: 1;
  line-height: 1.5;
}

.quiz-correct-badge {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 700;
  color: var(--success);
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.25);
  padding: 3px 10px;
  border-radius: 99px;
  white-space: nowrap;
}

/* --- Form: Create / Edit Soal --- */
.quiz-form-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.quiz-form-option {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(0,0,0,.18);
  border: 1.5px solid var(--border);
  border-radius: var(--r);
  padding: 12px 14px;
  transition: border-color .18s, background .18s;
}

.quiz-form-option.is-correct {
  border-color: rgba(16,185,129,.5);
  background: rgba(16,185,129,.06);
}

.quiz-form-option-label { flex-shrink: 0; }

.option-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

.quiz-form-option.is-correct .option-badge {
  color: var(--success);
  background: rgba(16,185,129,.1);
  border-color: rgba(16,185,129,.3);
}

.quiz-form-option-body { flex: 1; }
.quiz-form-option-body .form-control { margin: 0; }

/* Radio "Jawaban Benar" */
.quiz-correct-radio {
  flex-shrink: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.quiz-correct-radio input[type="radio"] { display: none; }

.quiz-correct-radio-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: rgba(255,255,255,.04);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--muted);
  transition: all .18s;
}

.quiz-correct-radio input[type="radio"]:checked + .quiz-correct-radio-icon,
.quiz-form-option.is-correct .quiz-correct-radio-icon {
  background: rgba(16,185,129,.18);
  border-color: var(--success);
  color: var(--success);
  box-shadow: 0 0 0 3px rgba(16,185,129,.12);
}

.quiz-correct-radio:hover .quiz-correct-radio-icon {
  border-color: var(--success);
  color: var(--success);
}

/* Hint text */
.form-hint {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

/* form-control alias for quiz forms */
.form-control {
  width: 100%;
  background: rgba(0,0,0,.25);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 11px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: all .18s ease;
  outline: none;
}
.form-control::placeholder { color: var(--muted); }
.form-control:focus {
  border-color: var(--primary);
  background: rgba(99,102,241,.05);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
textarea.form-control { resize: vertical; min-height: 90px; }

/* Responsive quiz options */
@media (max-width: 640px) {
  .quiz-options-grid { grid-template-columns: 1fr; }
  .quiz-form-option { flex-wrap: wrap; }
}

/* ============================================================
   QUIZ STUDENT — CTA box di slide completion
   ============================================================ */
.quiz-cta-box {
  background: linear-gradient(135deg, rgba(99,102,241,.12), rgba(139,92,246,.12));
  border: 1px solid rgba(99,102,241,.25);
  border-radius: 20px;
  padding: 24px 28px;
  display: inline-block;
  max-width: 360px;
  margin: 0 auto 4px;
  text-align: center;
}
.quiz-cta-icon   { font-size: 36px; line-height: 1; margin-bottom: 8px; }
.quiz-cta-title  { font-size: 18px; font-weight: 800; color: var(--text); margin: 0 0 4px; }
.quiz-cta-desc   { font-size: 13px; color: var(--muted); margin: 0; }

/* ============================================================
   QUIZ STUDENT — Quiz slide wrapper
   ============================================================ */
.quiz-student-wrap {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 28px 28px;
  overflow-y: auto;
}

#quiz-container {
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
}

/* Progress bar */
.sq-header { margin-bottom: 28px; }
.sq-progress-bar {
  height: 5px;
  background: rgba(255,255,255,.08);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 10px;
}
.sq-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #8b5cf6);
  border-radius: 99px;
  transition: width .4s ease;
}
.sq-counter {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin: 0;
}

/* Question */
.sq-body {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px 32px 28px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.sq-question {
  font-size: clamp(15px, 2.5vw, 19px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.6;
  margin: 0 0 28px;
}

/* Options */
.sq-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.sq-opt-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  background: rgba(255,255,255,.04);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
  cursor: pointer;
  text-align: left;
  transition: all .18s ease;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
}
.sq-opt-btn:hover:not(:disabled) {
  background: rgba(99,102,241,.1);
  border-color: rgba(99,102,241,.4);
  transform: translateX(4px);
}
.sq-opt-label {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  color: var(--muted);
  transition: all .18s;
}
.sq-opt-text { flex: 1; font-weight: 500; line-height: 1.45; }

/* Correct / Wrong states */
.sq-opt-btn.sq-correct {
  background: rgba(16,185,129,.12) !important;
  border-color: var(--success) !important;
}
.sq-opt-btn.sq-correct .sq-opt-label {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}
.sq-opt-btn.sq-wrong {
  background: rgba(239,68,68,.1) !important;
  border-color: var(--danger) !important;
}
.sq-opt-btn.sq-wrong .sq-opt-label {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.sq-opt-btn:disabled { cursor: default; }

/* Pilihan yang sudah dipilih siswa (netral — tidak tampilkan benar/salah dulu) */
.sq-opt-btn.sq-selected {
  background: rgba(99,102,241,.14) !important;
  border-color: var(--primary) !important;
}
.sq-opt-btn.sq-selected .sq-opt-label {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* Next button */
.sq-next {
  justify-content: center;
  width: 100%;
  animation: fadeUp .25s ease;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   QUIZ STUDENT — Result screen
   ============================================================ */
.sq-result {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 40px 32px 32px;
  text-align: center;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  animation: fadeUp .3s ease;
}
.sq-result-emoji  { font-size: 56px; line-height: 1; margin-bottom: 16px; }
.sq-result-nilai-wrap {
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.sq-result-nilai {
  font-size: clamp(3.5rem, 10vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -2px;
}
.sq-result-nilai-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--muted);
  margin-top: 4px;
  text-transform: uppercase;
}
.sq-result-title  { font-size: clamp(1rem, 3vw, 1.4rem); font-weight: 600; margin-bottom: 16px; color: var(--muted); }
.sq-result-score-bar {
  height: 8px;
  background: rgba(255,255,255,.08);
  border-radius: 99px;
  overflow: hidden;
  max-width: 320px;
  margin: 0 auto 12px;
}
.sq-result-score-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #8b5cf6);
  border-radius: 99px;
  transition: width .8s cubic-bezier(.34,1.56,.64,1);
}
.sq-result-msg { font-size: 15px; color: var(--muted); margin-bottom: 28px; }

/* Review list */
.sq-review {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
  margin-bottom: 28px;
  text-align: left;
}
.sq-rv-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
}
.sq-rv-correct { border-color: rgba(16,185,129,.25); background: rgba(16,185,129,.06); }
.sq-rv-wrong   { border-color: rgba(239,68,68,.2);  background: rgba(239,68,68,.05); }
.sq-rv-num  { font-weight: 800; flex-shrink: 0; min-width: 30px; }
.sq-rv-correct .sq-rv-num { color: var(--success); }
.sq-rv-wrong   .sq-rv-num { color: var(--danger); }
.sq-rv-q    { flex: 1; color: var(--muted); }
.sq-rv-ans  { flex-shrink: 0; font-size: 12px; color: var(--muted); }

.sq-result-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 640px) {
  .sq-body { padding: 24px 18px 20px; }
  .quiz-student-wrap { padding: 70px 12px 20px; }
}

/* ============================================================
   QUIZ — Identity Form (form identitas siswa)
   ============================================================ */
.sq-identity-wrap {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 28px;
}

.sq-identity-card {
  width: 100%;
  max-width: 480px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 40px 36px 36px;
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  text-align: center;
  animation: fadeUp .35s cubic-bezier(.34,1.56,.64,1);
}

.sq-identity-icon {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 16px;
}

.sq-identity-title {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--text);
  margin: 0 0 6px;
}

.sq-identity-sub {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 28px;
}

/* Fields */
.sq-identity-field {
  text-align: left;
  margin-bottom: 18px;
}

.sq-identity-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  margin-bottom: 8px;
}

.sq-identity-label-icon { font-size: 14px; }

.sq-identity-input {
  width: 100%;
  background: rgba(0,0,0,.28);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 13px 16px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color .18s, box-shadow .18s, background .18s;
  box-sizing: border-box;
}
.sq-identity-input::placeholder { color: var(--muted); }
.sq-identity-input:focus {
  border-color: var(--primary);
  background: rgba(99,102,241,.07);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Error message */
.sq-field-error {
  display: block;
  font-size: 12px;
  color: var(--danger);
  margin-top: 5px;
  min-height: 16px;
  font-weight: 600;
}

/* Submit button */
.sq-identity-submit {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
  padding: 14px 20px;
  font-size: 15px;
  border-radius: 14px;
}

/* Identity badge shown during quiz questions */
.sq-identity-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  padding: 7px 14px;
  background: rgba(99,102,241,.08);
  border: 1px solid rgba(99,102,241,.18);
  border-radius: 99px;
  width: fit-content;
}
.sq-id-name  { font-size: 13px; font-weight: 700; color: var(--text); }
.sq-id-kelas { font-size: 12px; color: var(--muted); }
.sq-id-nis   { font-size: 12px; color: var(--muted); }
.sq-id-sep   { color: var(--border-2); font-size: 10px; }

/* Result student badge */
.sq-result-student-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 6px 16px;
  margin-bottom: 20px;
}

@media (max-width: 640px) {
  .sq-identity-card { padding: 28px 20px 24px; }
  .sq-identity-wrap { padding: 70px 14px 20px; }
  .sq-identity-badge { font-size: 11px; }
}