/* ============================================================
   EduQuest - Main Stylesheet
   Aesthetic: Playful Game-Edu Dark Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Nunito:wght@400;500;600;700;800&display=swap');

:root {
  --bg-dark: #0f0e17;
  --bg-card: #1a1a2e;
  --bg-card2: #16213e;
  --bg-card3: #0f3460;
  --primary: #e94560;
  --primary-glow: rgba(233,69,96,0.25);
  --accent-yellow: #ffd460;
  --accent-green: #2ecc71;
  --accent-blue: #3498db;
  --accent-purple: #9b59b6;
  --accent-orange: #e67e22;
  --text-main: #f0f0f0;
  --text-muted: #8892b0;
  --text-dim: #556080;
  --border: rgba(255,255,255,0.07);
  --border-glow: rgba(233,69,96,0.4);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-pill: 50px;
  --font-display: 'Fredoka One', cursive;
  --font-body: 'Nunito', sans-serif;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.6;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(233,69,96,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(52,152,219,0.08) 0%, transparent 50%);
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, .display { font-family: var(--font-display); letter-spacing: 0.5px; }
h1 { font-size: 2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.25rem; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { opacity: 0.85; }

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

.sidebar {
  width: 260px;
  min-height: 100vh;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 100;
  transition: var(--transition);
  overflow-y: auto;
}

.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 0;
  min-height: 100vh;
}

.page-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-body {
  padding: 28px 32px;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo .logo-text {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--primary);
  line-height: 1;
}
.sidebar-logo .logo-sub { font-size: 0.72rem; color: var(--text-muted); letter-spacing: 2px; text-transform: uppercase; }

.sidebar-user {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: white;
  flex-shrink: 0;
  border: 2px solid var(--border-glow);
}
.avatar.lg { width: 60px; height: 60px; font-size: 1.5rem; }

.sidebar-user-info .name { font-weight: 700; font-size: 0.9rem; }
.sidebar-user-info .role { font-size: 0.75rem; color: var(--text-muted); }

.sidebar-nav { padding: 12px 0; flex: 1; }

.nav-section-title {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-dim);
  padding: 8px 20px 4px;
  font-weight: 700;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  color: var(--text-muted);
  transition: var(--transition);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  border-left: 3px solid transparent;
  position: relative;
}

.nav-item:hover {
  color: var(--text-main);
  background: rgba(255,255,255,0.04);
  border-left-color: var(--primary);
}

.nav-item.active {
  color: var(--primary);
  background: var(--primary-glow);
  border-left-color: var(--primary);
}

.nav-item .nav-icon { font-size: 1.1rem; width: 20px; text-align: center; }
.nav-item .badge-count {
  margin-left: auto;
  background: var(--primary);
  color: white;
  font-size: 0.65rem;
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 700;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover { border-color: rgba(255,255,255,0.12); transform: translateY(-2px); box-shadow: var(--shadow); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.card-title { font-size: 1.1rem; font-weight: 700; display: flex; align-items: center; gap: 8px; }

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, var(--primary));
}

.stat-card:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.35); }

.stat-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  background: var(--card-accent-bg, var(--primary-glow));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-info .value { font-size: 1.8rem; font-family: var(--font-display); line-height: 1; }
.stat-info .label { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

/* ============================================================
   MATERI CARD (Game-style)
   ============================================================ */
.materi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }

.materi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.materi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, var(--primary), transparent);
  opacity: 0.05;
  pointer-events: none;
}

.materi-card:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(0,0,0,0.4); border-color: var(--primary); }

.materi-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; }
.materi-desc { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 16px; line-height: 1.5; }

.materi-meta {
  display: flex; gap: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.materi-meta span { display: flex; align-items: center; gap: 4px; }

.progress-bar-wrap { background: rgba(255,255,255,0.07); border-radius: 10px; height: 6px; overflow: hidden; }
.progress-bar-fill { height: 100%; border-radius: 10px; background: var(--accent-green); transition: width 0.5s ease; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
  text-decoration: none;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 15px var(--primary-glow); }
.btn-primary:hover:not(:disabled) { background: #c73652; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(233,69,96,0.4); }

.btn-secondary { background: var(--accent-blue); color: white; box-shadow: 0 4px 15px rgba(52,152,219,0.24); }
.btn-secondary:hover:not(:disabled) { background: #2980b9; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(52,152,219,0.34); }

.btn-success { background: var(--accent-green); color: white; }
.btn-success:hover:not(:disabled) { background: #27ae60; transform: translateY(-2px); }

.btn-warning { background: var(--accent-yellow); color: #1a1a2e; }
.btn-warning:hover:not(:disabled) { background: #f0c040; transform: translateY(-2px); }

.btn-info { background: var(--accent-blue); color: white; }
.btn-info:hover:not(:disabled) { background: #2980b9; transform: translateY(-2px); }

.btn-ghost { background: transparent; color: var(--text-main); border: 1.5px solid var(--border); }
.btn-ghost:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }

.btn-danger { background: transparent; color: #e74c3c; border: 1.5px solid #e74c3c; }
.btn-danger:hover:not(:disabled) { background: #e74c3c; color: white; }

.btn-sm { padding: 6px 14px; font-size: 0.78rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; display: flex; }

/* ============================================================
   FORMS
   ============================================================ */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.82rem; font-weight: 700; color: var(--text-muted); margin-bottom: 8px; letter-spacing: 0.5px; text-transform: uppercase; }

.form-control {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 16px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--primary); background: rgba(233,69,96,0.05); box-shadow: 0 0 0 3px var(--primary-glow); }
.form-control::placeholder { color: var(--text-dim); }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

label[for^="sJawaban"] {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  border-radius: 12px;
  padding: 12px 12px 12px 46px;
  transition: var(--transition);
  background: rgba(255,255,255,0.03);
  position: relative;
}

label[for^="sJawaban"]:hover {
  background: rgba(255,255,255,0.08);
}

label[for^="sJawaban"] input[name="jawaban_benar"] {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

label[for^="sJawaban"] div {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.08);
  font-weight: 800;
  color: var(--text-main);
  flex-shrink: 0;
}

label[for^="sJawaban"] input[name="jawaban_benar"] + div {
  border: 1.5px solid rgba(255,255,255,0.08);
}

label[for^="sJawaban"] input[name="jawaban_benar"]:checked + div {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

label[for^="sJawaban"] .check-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
  opacity: 0;
  transition: var(--transition);
  position: absolute;
  right: 14px;
}

label[for^="sJawaban"] input[name="jawaban_benar"]:checked + div + .check-icon {
  opacity: 1;
}

label[for^="sJawaban"] input[name="jawaban_benar"]:focus-visible ~ .check-icon {
  opacity: 0.35;
}

select[name="jawaban_benar"] {
  display: none !important;
}

/* ============================================================
   TABLES
   ============================================================ */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }

table { width: 100%; border-collapse: collapse; }
thead th {
  background: rgba(255,255,255,0.04);
  padding: 12px 16px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(255,255,255,0.025); }

/* ============================================================
   BADGES / PILLS
   ============================================================ */
.pill {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
}
.pill-success { background: rgba(46,204,113,0.15); color: var(--accent-green); border: 1px solid rgba(46,204,113,0.3); }
.pill-danger { background: rgba(231,76,60,0.15); color: #e74c3c; border: 1px solid rgba(231,76,60,0.3); }
.pill-warning { background: rgba(255,212,96,0.15); color: var(--accent-yellow); border: 1px solid rgba(255,212,96,0.3); }
.pill-info { background: rgba(52,152,219,0.15); color: var(--accent-blue); border: 1px solid rgba(52,152,219,0.3); }
.pill-purple { background: rgba(155,89,182,0.15); color: var(--accent-purple); border: 1px solid rgba(155,89,182,0.3); }
.pill-muted { background: rgba(255,255,255,0.07); color: var(--text-muted); border: 1px solid var(--border); }

/* ============================================================
   ALERT / FLASH
   ============================================================ */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
  border-left: 4px solid;
  animation: slideIn 0.3s ease;
}
.alert-success { background: rgba(46,204,113,0.1); border-color: var(--accent-green); color: var(--accent-green); }
.alert-danger { background: rgba(231,76,60,0.1); border-color: #e74c3c; color: #e74c3c; }
.alert-warning { background: rgba(255,212,96,0.1); border-color: var(--accent-yellow); color: var(--accent-yellow); }
.alert-info { background: rgba(52,152,219,0.1); border-color: var(--accent-blue); color: var(--accent-blue); }

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.login-left {
  background: linear-gradient(135deg, var(--bg-card2) 0%, var(--bg-card3) 100%);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 60px;
  position: relative;
  overflow: hidden;
}

.login-left::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(233,69,96,0.15), transparent);
  top: -100px; left: -100px;
  border-radius: 50%;
}

.login-right {
  display: flex; align-items: center; justify-content: center;
  padding: 60px;
  background: var(--bg-dark);
}

.login-box { width: 100%; max-width: 380px; }

.login-logo { font-family: var(--font-display); font-size: 4rem; color: var(--primary); line-height: 1; }
.login-tagline { font-size: 0.9rem; color: var(--text-muted); margin-top: 8px; max-width: 320px; text-align: center; }

.role-tabs {
  display: flex;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: 28px;
}
.role-tab {
  flex: 1; text-align: center;
  padding: 10px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.85rem;
  transition: var(--transition);
  color: var(--text-muted);
}
.role-tab.active { background: var(--primary); color: white; box-shadow: 0 4px 12px var(--primary-glow); }

.feature-list { list-style: none; }
.feature-list li {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 0;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.feature-list li:last-child { border-bottom: none; }
.feature-icon { font-size: 1.1rem; }

/* ============================================================
   KUIS (Quiz)
   ============================================================ */
.quiz-wrap {
  max-width: 780px; margin: 0 auto;
}

.quiz-header {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}

.timer-display {
  display: flex; align-items: center; gap: 8px;
  background: rgba(233,69,96,0.1);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--primary);
  min-width: 110px; justify-content: center;
}
.timer-display.warning { border-color: var(--accent-yellow); color: var(--accent-yellow); background: rgba(255,212,96,0.1); animation: pulse 1s infinite; }
.timer-display.danger { border-color: #e74c3c; color: #e74c3c; background: rgba(231,76,60,0.1); animation: pulse 0.5s infinite; }

.question-progress {
  flex: 1;
  font-size: 0.85rem; color: var(--text-muted);
}
.question-progress strong { color: var(--text-main); font-size: 1rem; }

.question-dots { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
.q-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border);
  transition: var(--transition);
}
.q-dot.answered { background: var(--accent-green); }
.q-dot.current { background: var(--primary); transform: scale(1.3); }

.question-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 20px;
}

.question-number {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-glow);
  color: var(--primary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.question-text { font-size: 1.05rem; font-weight: 700; margin-bottom: 20px; line-height: 1.6; }

.options-grid { display: grid; gap: 10px; }

.option-btn {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.04);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-main);
  text-align: left;
  width: 100%;
}
.option-btn:hover { border-color: var(--primary); background: var(--primary-glow); }
.option-btn.selected { border-color: var(--primary); background: var(--primary-glow); color: white; }
.option-btn.correct { border-color: var(--accent-green); background: rgba(46,204,113,0.15); }
.option-btn.wrong { border-color: #e74c3c; background: rgba(231,76,60,0.15); }

.option-letter {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: var(--transition);
}
.option-btn.selected .option-letter,
.option-btn:hover .option-letter { background: var(--primary); color: white; }

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

/* ============================================================
   HASIL KUIS
   ============================================================ */
.result-hero {
  text-align: center;
  padding: 40px 20px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.result-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 50% 0%, var(--result-color-bg, var(--primary-glow)), transparent 70%);
  pointer-events: none;
}

.score-circle {
  width: 150px; height: 150px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: conic-gradient(var(--result-color, var(--primary)) var(--score-deg, 0deg), rgba(255,255,255,0.07) 0deg);
  position: relative;
}
.score-circle::before {
  content: '';
  position: absolute;
  width: 120px; height: 120px;
  background: var(--bg-card);
  border-radius: 50%;
}
.score-value { font-family: var(--font-display); font-size: 2.2rem; color: var(--result-color, var(--primary)); position: relative; z-index: 1; line-height: 1; }
.score-label { font-size: 0.7rem; color: var(--text-muted); position: relative; z-index: 1; }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 500;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}
.hidden { display: none !important; }
.modal-overlay.hidden { display: none; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%; max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: scaleIn 0.2s ease;
}
.modal.modal-fullscreen {
  width: min(100vw, 100%);
  max-width: 100vw;
  max-height: 100vh;
  height: 100vh;
  border-radius: 0;
  margin: 0;
}
.modal.modal-fullscreen .modal-body {
  padding: 24px;
  min-height: calc(100vh - 120px);
}
.modal.modal-fullscreen .modal-header,
.modal.modal-fullscreen .modal-footer {
  padding-left: 24px;
  padding-right: 24px;
}
.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-family: var(--font-display); font-size: 1.2rem; }
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px;
}
.modal-grid {
  display: grid;
  grid-template-columns: minmax(280px, 340px) 1fr;
  gap: 22px;
}
.preview-panel {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 20px;
  padding: 18px;
}
.preview-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}
.preview-panel-title {
  font-size: 1rem;
  font-weight: 700;
}
.preview-panel-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.preview-list {
  display: grid;
  gap: 10px;
}
.preview-empty {
  padding: 22px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.02);
  color: var(--text-muted);
  text-align: center;
}
.preview-card {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 16px;
  background: rgba(255,255,255,0.05);
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
  position: relative;
}
.preview-card:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.08);
}
.preview-card.selected {
  border-color: var(--accent-yellow);
  background: rgba(255,255,255,0.12);
}
.preview-card-body {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.preview-card-number {
  min-width: 58px;
  height: 28px;
  padding: 0 10px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.12);
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--accent-yellow);
  white-space: nowrap;
}
.preview-card-content {
  width: 100%;
}
.preview-card-text {
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 10px;
}
.preview-card-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.10);
  margin-top: 10px;
}
.preview-card-points {
  color: var(--accent-yellow);
  font-weight: 700;
}
.preview-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.preview-card-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.preview-card-title {
  font-weight: 700;
  font-size: 0.95rem;
}
.preview-card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.preview-card-actions .btn {
  padding: 6px 10px;
  font-size: 0.82rem;
}
.preview-card-note {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.preview-card-text {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 12px;
}
.btn-sm {
  padding: 8px 12px;
  font-size: 0.90rem;
}
.btn-primary.btn-sm {
  min-width: auto;
}
.form-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.question-viewer {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 20px;
  padding: 18px;
}
.question-viewer-header {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.question-viewer-card {
  min-height: 220px;
  border-radius: 18px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 18px;
}
.question-viewer-empty {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}
.question-viewer-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
}
.question-viewer-tags {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.question-viewer-points {
  color: var(--accent-yellow);
  font-weight: 700;
}
.answer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
@media (max-width: 720px) {
  .answer-grid {
    grid-template-columns: 1fr;
  }
}
.answer-choice {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}
.answer-choice.correct {
  border-color: var(--accent-green);
  background: rgba(79, 197, 122, 0.12);
}
.answer-key {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.16);
  font-weight: 700;
}
.answer-text {
  flex: 1;
  color: var(--text);
}

@media (max-width: 900px) {
  .modal-grid {
    grid-template-columns: 1fr;
  }
}
.btn-close {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 1.2rem; line-height: 1;
  transition: var(--transition); padding: 4px;
}
.btn-close:hover { color: var(--primary); }

/* ============================================================
   UTILITIES
   ============================================================ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

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

.text-primary { color: var(--primary); }
.text-success { color: var(--accent-green); }
.text-warning { color: var(--accent-yellow); }
.text-danger { color: #e74c3c; }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }

.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; } .gap-3 { gap: 24px; }

.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

.empty-state { text-align: center; padding: 48px 24px; color: var(--text-muted); }
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state p { font-size: 0.9rem; }

.badge-game {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  font-size: 0.78rem;
  font-weight: 700;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideIn { from { transform: translateY(-10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes scaleIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

.float { animation: float 3s ease-in-out infinite; }
.spin { animation: spin 2s linear infinite; }
.pulse { animation: pulse 2s ease-in-out infinite; }
.animate-in { animation: slideIn 0.3s ease; }

/* ============================================================
   SEARCH / FILTER
   ============================================================ */
.search-bar {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  transition: var(--transition);
}
.search-bar:focus-within { border-color: var(--primary); }
.search-bar input { background: none; border: none; outline: none; color: var(--text-main); font-family: var(--font-body); font-size: 0.88rem; flex: 1; min-width: 180px; }
.search-bar input::placeholder { color: var(--text-dim); }

.filter-bar {
  display: flex;
  align-items: flex-start !important;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.filter-bar > button {
  align-self: flex-start !important;
  margin-top: 0;
}
.filter-fields {
  display: flex;
  align-items: flex-end !important;
  gap: 12px;
  flex-wrap: wrap;
}
.filter-fields > * {
  margin-bottom: 0 !important;
}
.align-center { align-items: center; }
.filter-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 220px;
}
.filter-item label {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.search-field {
  min-width: 240px;
}
.btn-primary.btn-lg {
  padding: 12px 22px;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination { display: flex; align-items: center; gap: 6px; margin-top: 20px; }
.page-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.page-btn:hover, .page-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .form-row-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .login-page { grid-template-columns: 1fr; }
  .login-left { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .page-body { padding: 20px 16px; }
  .page-header { padding: 14px 16px; }
  .quiz-nav { flex-direction: column; }
}