/* ─── IELTS Platform Design System — White & Red Edition ──────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --red:        #CC0022;
  --red-deep:   #8B0015;
  --red-dark:   #5C000F;
  --red-mid:    #B8001E;
  --red-bright: #FF1744;
  --red-light:  #FFE8EC;
  --red-lighter:#FFF5F7;
  --red-faint:  #FFF9FA;
  --dark:       #1A0005;
  --mid:        #5C000F;
  --white:      #FFFFFF;
  --off-white:  #FAFAFA;
  --border:     #EED0D5;
  --border-soft:#F5E0E4;
  --text:       #1A0005;
  --text-mid:   #4A0015;
  --muted:      #8B5560;
  --success:    #15803d;
  --warning:    #B45309;
  --shadow:     0 2px 20px rgba(180,0,30,0.09);
  --shadow-md:  0 8px 32px rgba(180,0,30,0.14);
  --shadow-lg:  0 20px 60px rgba(180,0,30,0.18);
  --radius:     12px;
  --radius-sm:  8px;
  --radius-xs:  6px;
}

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

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--off-white);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── IELTS Header Bar ────────────────────────────────────────────────────── */
.ielts-topbar {
  background: var(--white);
  border-bottom: 3px solid var(--red);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(180,0,30,0.1);
}
.ielts-badge {
  background: var(--red);
  color: white;
  font-weight: 800;
  font-size: 18px;
  padding: 4px 14px;
  border-radius: 4px;
  letter-spacing: 1px;
}
.topbar-title { font-size: 15px; color: var(--text-mid); font-weight: 500; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* ─── Login Page ──────────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--red-dark) 0%, var(--red) 50%, var(--red-mid) 100%);
  position: relative;
  overflow: hidden;
}
.login-wrap::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}
.login-wrap::after {
  content: '';
  position: absolute;
  bottom: -160px; left: -160px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.login-box {
  background: var(--white);
  border-radius: 20px;
  padding: 52px 48px;
  width: 100%;
  max-width: 460px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}
.login-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--red-dark), var(--red), var(--red-bright));
  border-radius: 20px 20px 0 0;
}
.login-logo { text-align: center; margin-bottom: 36px; }
.login-logo .badge-big {
  background: linear-gradient(135deg, var(--red-dark), var(--red));
  color: white;
  font-weight: 900;
  font-size: 28px;
  padding: 8px 24px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.login-logo h2 { font-size: 22px; font-weight: 800; color: var(--text); }
.login-logo p { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ─── Forms ───────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 7px;
  font-size: 13px;
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  background: var(--white);
  color: var(--text);
}
.form-control:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 4px rgba(204,0,34,0.08);
}
.form-control::placeholder { color: #C9A0A8; }
select.form-control { background: white; cursor: pointer; }

/* ─── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  border: none;
  transition: all 0.18s;
  text-decoration: none;
  font-family: inherit;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--red-mid), var(--red));
  color: white;
  box-shadow: 0 4px 14px rgba(204,0,34,0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--red-deep), var(--red-mid));
  box-shadow: 0 6px 20px rgba(204,0,34,0.4);
  transform: translateY(-1px);
}
.btn-dark {
  background: linear-gradient(135deg, var(--red-dark), var(--red-deep));
  color: white;
  box-shadow: 0 4px 14px rgba(100,0,20,0.3);
}
.btn-dark:hover {
  background: linear-gradient(135deg, #3D0008, var(--red-dark));
  transform: translateY(-1px);
}
.btn-success { background: #15803d; color: white; box-shadow: 0 4px 14px rgba(21,128,61,0.25); }
.btn-success:hover { background: #166534; transform: translateY(-1px); }
.btn-outline {
  background: white;
  border: 2px solid var(--border);
  color: var(--text-mid);
}
.btn-outline:hover {
  border-color: var(--red);
  color: var(--red);
  background: var(--red-faint);
}
.btn-danger {
  background: var(--red-deep);
  color: white;
  box-shadow: 0 4px 14px rgba(139,0,21,0.3);
}
.btn-danger:hover { background: var(--red-dark); transform: translateY(-1px); }
.btn-warning { background: #FEF3C7; color: var(--warning); border: 2px solid #FDE68A; }
.btn-warning:hover { background: #FDE68A; }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-full { width: 100%; justify-content: center; }

/* ─── Alert ───────────────────────────────────────────────────────────────── */
.alert {
  padding: 13px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-danger  { background: #FFF0F2; border: 1.5px solid #FFB3BE; color: var(--red-dark); }
.alert-success { background: #F0FDF4; border: 1.5px solid #86EFAC; color: #15803d; }
.alert-info    { background: #F0F9FF; border: 1.5px solid #93C5FD; color: #1D4ED8; }
.alert-warning { background: #FFFBEB; border: 1.5px solid #FCD34D; color: var(--warning); }

/* ─── Dashboard ───────────────────────────────────────────────────────────── */
.page-wrap { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }
.page-title { font-size: 22px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.page-sub { color: var(--muted); font-size: 14px; margin-bottom: 24px; }

.test-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.test-card {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 2px solid var(--border-soft);
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.test-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--red-bright));
}
.test-card:hover {
  border-color: var(--red);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.test-card-type {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
}
.type-listening { background: var(--red-light); color: var(--red-deep); }
.type-reading   { background: var(--red-light); color: var(--red-mid); }
.test-card h3   { font-size: 17px; font-weight: 700; color: var(--text); }
.test-card .meta { font-size: 13px; color: var(--muted); }
.score-badge { font-size: 16px; font-weight: 700; color: var(--success); }
.score-badge.partial { color: var(--warning); }

/* ─── Test Interface ──────────────────────────────────────────────────────── */
.test-layout { display: flex; height: calc(100vh - 60px); overflow: hidden; }
.passage-panel {
  width: 50%;
  padding: 28px;
  overflow-y: auto;
  border-right: 2px solid var(--border);
  background: white;
}
.questions-panel {
  width: 50%;
  padding: 28px;
  overflow-y: auto;
  background: var(--red-faint);
}
.passage-title { font-size: 20px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.passage-author { color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.passage-text { font-size: 15px; line-height: 1.95; color: var(--text-mid); text-align: justify; }
.passage-text p { margin-bottom: 16px; }

/* ─── Question Groups ─────────────────────────────────────────────────────── */
.q-section { margin-bottom: 32px; }
.q-section-title {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--red);
  margin-bottom: 6px;
}
.q-instruction {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-mid);
  margin-bottom: 18px;
  padding: 12px 16px;
  background: var(--red-faint);
  border-left: 4px solid var(--red);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  line-height: 1.6;
}
.question-item { margin-bottom: 22px; }
.q-num {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 28px !important;
  height: 28px !important;
  min-width: 28px !important;
  max-width: 28px !important;
  min-height: 28px !important;
  max-height: 28px !important;
  background: linear-gradient(135deg, var(--red-deep), var(--red)) !important;
  color: white !important;
  border-radius: 50% !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  margin-right: 8px;
  flex-shrink: 0 !important;
  line-height: 1 !important;
  padding: 0 !important;
}
.q-text { font-size: 14px; font-weight: 500; color: var(--text); margin-bottom: 10px; display: flex; align-items: flex-start; }
.q-text span { flex: 1; }

/* TF / MCQ radios */
.radio-group, .checkbox-group { display: flex; flex-direction: column; gap: 8px; padding-left: 36px; }
.radio-opt, .check-opt {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  background: white;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  font-size: 14px;
  color: var(--text);
}
.radio-opt:hover, .check-opt:hover {
  border-color: var(--red);
  background: var(--red-faint);
}
.radio-opt input, .check-opt input { accent-color: var(--red); width: 16px; height: 16px; }
.radio-opt.selected, .check-opt.selected {
  border-color: var(--red);
  background: var(--red-lighter);
}

/* Fill-in inputs */
.fill-input {
  width: calc(100% - 36px);
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-left: 36px;
  font-family: inherit;
}
.fill-input:focus { border-color: var(--red); outline: none; box-shadow: 0 0 0 3px rgba(204,0,34,0.07); }

/* Matching */
.match-table { width: calc(100% - 36px); margin-left: 36px; border-collapse: collapse; }
.match-table th { background: linear-gradient(135deg, var(--red-deep), var(--red)); color: white; padding: 10px 14px; font-size: 13px; }
.match-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 14px; }
.match-table td:first-child { width: 60%; }
.match-select { width: 100%; padding: 7px 10px; border: 2px solid var(--border); border-radius: 6px; font-size: 13px; font-family: inherit; }
.match-select:focus { border-color: var(--red); outline: none; }

/* ─── Listening Interface ──────────────────────────────────────────────────── */
.listening-layout { display: flex; flex-direction: column; height: calc(100vh - 60px); }
.listening-start {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--red-dark), var(--red-deep), var(--red));
}
.start-box {
  background: white;
  border-radius: 20px;
  padding: 52px 48px;
  text-align: center;
  max-width: 540px;
  width: 90%;
  box-shadow: 0 30px 80px rgba(0,0,0,0.3);
  position: relative;
  overflow: hidden;
}
.start-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--red-dark), var(--red), var(--red-bright));
}
.headphone-icon { font-size: 80px; margin-bottom: 24px; }
.start-box h2 { font-size: 26px; font-weight: 800; margin-bottom: 12px; color: var(--text); }
.start-box .warning { color: var(--muted); font-size: 14px; margin-bottom: 36px; line-height: 1.75; }
.btn-play {
  background: linear-gradient(135deg, var(--red-deep), var(--red));
  color: white;
  padding: 17px 44px;
  border-radius: 50px;
  font-size: 17px;
  font-weight: 800;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.2s;
  box-shadow: 0 8px 24px rgba(204,0,34,0.35);
  font-family: inherit;
}
.btn-play:hover {
  transform: scale(1.04);
  box-shadow: 0 12px 32px rgba(204,0,34,0.45);
}

.listening-active { display: none; flex: 1; overflow: hidden; }
.listening-active.visible { display: flex; }
.listen-questions { flex: 1; padding: 24px; overflow-y: auto; background: var(--red-faint); }
.audio-bar {
  background: linear-gradient(135deg, var(--red-dark), var(--red-deep));
  color: white;
  padding: 13px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
}
.audio-progress { display: flex; align-items: center; gap: 12px; flex: 1; margin: 0 24px; }
.progress-bar { flex: 1; height: 5px; background: rgba(255,255,255,0.2); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--red-bright); transition: width 0.5s linear; width: 0; border-radius: 3px; }

/* ─── Part Navigator ───────────────────────────────────────────────────────── */
.part-nav {
  background: white;
  border-top: 2px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}
.part-item { display: flex; align-items: center; gap: 6px; }
.q-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--text-mid);
}
.q-dot.answered { background: linear-gradient(135deg, var(--red-deep), var(--red)); color: white; border-color: var(--red); }
.q-dot.current  { border-color: var(--red-bright); color: var(--red); box-shadow: 0 0 0 3px rgba(204,0,34,0.15); }

/* ─── Submit Bar ───────────────────────────────────────────────────────────── */
.submit-bar {
  position: sticky;
  bottom: 0;
  background: white;
  border-top: 2px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -4px 16px rgba(180,0,30,0.07);
}
.answered-count { font-size: 13px; color: var(--muted); }

/* ─── Admin Panel ─────────────────────────────────────────────────────────── */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 240px;
  background: linear-gradient(180deg, var(--red-dark) 0%, var(--red-deep) 100%);
  color: white;
  padding: 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.sidebar-logo .badge {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 800;
  font-size: 16px;
  display: inline-block;
  margin-bottom: 4px;
}
.sidebar-logo p { font-size: 11px; color: rgba(255,255,255,0.5); margin-top: 4px; }
.sidebar-nav { flex: 1; padding: 12px 0; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.15s;
  cursor: pointer;
  border-left: 3px solid transparent;
}
.nav-item:hover, .nav-item.active {
  background: rgba(255,255,255,0.12);
  color: white;
  border-left-color: rgba(255,255,255,0.8);
}
.nav-item .icon { font-size: 18px; width: 20px; }

.admin-content { flex: 1; padding: 32px; overflow-y: auto; background: var(--red-faint); }
.admin-header { margin-bottom: 28px; }
.admin-header h1 { font-size: 26px; font-weight: 800; color: var(--text); }
.admin-header p { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ─── Cards / Stats ───────────────────────────────────────────────────────── */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; }
.stat-card {
  background: white;
  border-radius: var(--radius);
  padding: 22px 26px;
  box-shadow: var(--shadow);
  border: 1.5px solid var(--border-soft);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red-deep), var(--red));
}
.stat-card .num { font-size: 36px; font-weight: 900; color: var(--red); }
.stat-card .lbl { font-size: 13px; color: var(--muted); margin-top: 4px; font-weight: 600; }

.card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  border: 1.5px solid var(--border-soft);
  overflow: hidden;
}
.card-header {
  padding: 18px 24px;
  border-bottom: 1.5px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(90deg, var(--red-faint), white);
}
.card-header h2 { font-size: 16px; font-weight: 800; color: var(--text); }
.card-body { padding: 24px; }

/* ─── Table ───────────────────────────────────────────────────────────────── */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  background: var(--red-lighter);
  font-weight: 700;
  padding: 11px 16px;
  text-align: left;
  border-bottom: 2px solid var(--border);
  color: var(--red-deep);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.table td { padding: 13px 16px; border-bottom: 1px solid var(--border-soft); vertical-align: middle; color: var(--text); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--red-faint); }

/* ─── Status badges ───────────────────────────────────────────────────────── */
.badge-status {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}
.badge-active    { background: #DCFCE7; color: #15803d; }
.badge-inactive  { background: var(--red-light); color: var(--red-dark); }
.badge-submitted { background: var(--red-lighter); color: var(--red-deep); }
.badge-pending   { background: #FEF3C7; color: var(--warning); }

/* ─── Question Builder ────────────────────────────────────────────────────── */
.q-builder {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
}
.q-builder-header {
  background: var(--red-lighter);
  padding: 13px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  border-bottom: 2px solid var(--border);
}
.q-builder-header:hover { background: var(--red-light); }
.q-builder-body { padding: 20px; display: none; }
.q-builder-body.open { display: block; }
.q-type-tag {
  background: linear-gradient(135deg, var(--red-deep), var(--red));
  color: white;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 700;
}

/* Add question form */
.add-q-panel {
  background: white;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}
.add-q-panel:hover { border-color: var(--red); }
.add-q-panel h3 { font-size: 15px; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.options-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.option-row { display: flex; gap: 8px; align-items: center; }
.option-row input { flex: 1; }
.option-row .btn-sm { padding: 8px 12px; }

/* ─── Results ─────────────────────────────────────────────────────────────── */
.result-student {
  background: white;
  border-radius: var(--radius);
  padding: 22px 26px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  border: 1.5px solid var(--border-soft);
  border-left: 4px solid var(--red);
}
.result-name { font-size: 16px; font-weight: 700; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; color: var(--text); }
.result-tests { display: flex; flex-wrap: wrap; gap: 12px; }
.result-test-item {
  background: var(--red-faint);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-size: 14px;
  border: 1.5px solid var(--border);
}
.result-test-item .score { font-weight: 800; font-size: 20px; color: var(--red); }
.result-test-item .label { font-size: 12px; color: var(--muted); font-weight: 600; }
.result-test-item .date { font-size: 11px; color: var(--muted); margin-top: 4px; }

/* ─── Modal ───────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(92,0,15,0.4);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  display: none;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: white;
  border-radius: 18px;
  padding: 36px;
  width: 90%;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.modal-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--red-dark), var(--red));
}
.modal-box h3 { font-size: 20px; font-weight: 800; margin-bottom: 22px; color: var(--text); }
.modal-actions { display: flex; gap: 12px; margin-top: 24px; justify-content: flex-end; }

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .test-layout { flex-direction: column; }
  .passage-panel, .questions-panel { width: 100%; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .admin-sidebar { display: none; }
  .login-box { padding: 36px 28px; }
}

/* ── Question number badge ────────────────────────────────────────────────── */
.qnum-badge {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 28px !important;
  height: 28px !important;
  min-width: 28px !important;
  max-width: 28px !important;
  min-height: 28px !important;
  max-height: 28px !important;
  background: linear-gradient(135deg, var(--red-deep), var(--red)) !important;
  color: white !important;
  border-radius: 50% !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  flex-shrink: 0 !important;
  line-height: 1 !important;
  padding: 0 !important;
}

/* ── Highlighter toolbar ──────────────────────────────────────────────────── */
#highlightToolbar {
  position: fixed;
  background: linear-gradient(135deg, var(--red-dark), var(--red-deep));
  border-radius: 10px;
  padding: 7px 10px;
  display: none;
  align-items: center;
  gap: 6px;
  z-index: 9999;
  box-shadow: 0 8px 28px rgba(92,0,15,0.5);
}
.hl-btn {
  border: none;
  border-radius: 6px;
  padding: 6px 11px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  font-family: inherit;
}
.hl-btn:hover { opacity: .88; transform: scale(1.05); }
.hl-yellow { background: #FFE066; color: #333; }
.hl-green  { background: #6EE7B7; color: #1a472a; }
.hl-pink   { background: #FCA5A5; color: #7f1d1d; }
.hl-clear  { background: rgba(255,255,255,.18); color: white; font-size: 11px; }

/* highlighted text marks */
.hl-y { background: #FFE066; border-radius: 2px; }
.hl-g { background: #6EE7B7; border-radius: 2px; }
.hl-p { background: #FCA5A5; border-radius: 2px; }

/* ── Inline select (dropdown question type) ───────────────────────────────── */
.inline-select-q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
}
.inline-select-q .q-num { margin-top: 2px; }
.inline-select-wrap { flex: 1; }
.inline-select-wrap .q-stmt {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 7px;
  line-height: 1.65;
}
.inline-select-wrap select {
  width: 100%;
  max-width: 300px;
  padding: 9px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: white;
  cursor: pointer;
  font-family: inherit;
}
.inline-select-wrap select:focus { border-color: var(--red); outline: none; box-shadow: 0 0 0 3px rgba(204,0,34,0.07); }

/* ─── Dark / Light Mode Toggle ────────────────────────────────────────────── */
.theme-toggle {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  color: white;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  transition: background .15s;
  white-space: nowrap;
  font-family: inherit;
}
.theme-toggle:hover { background: rgba(255,255,255,0.25); }
.theme-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9998;
  background: linear-gradient(135deg, var(--red-deep), var(--red));
  color: white;
  border: none;
  border-radius: 50%;
  width: 46px;
  height: 46px;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(180,0,30,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s, box-shadow .15s;
}
.theme-float:hover { transform: scale(1.12); box-shadow: 0 10px 28px rgba(180,0,30,0.5); }

/* ─── Dark Mode ───────────────────────────────────────────────────────────── */
[data-theme="dark"] {
  --border:      #3D1A20;
  --border-soft: #2D1218;
  --text:        #F5E6E8;
  --text-mid:    #DDACB4;
  --muted:       #B07080;
  --shadow:      0 2px 20px rgba(0,0,0,0.5);
  --red-faint:   #1A0508;
  --red-lighter: #250A10;
  --red-light:   #3D1218;
  --off-white:   #100308;
}
[data-theme="dark"] body { background: #0E0205 !important; color: var(--text); }
[data-theme="dark"] .theme-float { background: linear-gradient(135deg, var(--red-dark), var(--red-deep)); }

/* Dark cards & surfaces */
[data-theme="dark"] .card,
[data-theme="dark"] .stat-card,
[data-theme="dark"] .modal-box,
[data-theme="dark"] .result-student,
[data-theme="dark"] .login-box,
[data-theme="dark"] .start-box,
[data-theme="dark"] .passage-panel,
[data-theme="dark"] .add-q-panel { background: #1C080C !important; border-color: var(--border) !important; color: var(--text); }
[data-theme="dark"] .card-header { background: linear-gradient(90deg, #250A10, #1C080C) !important; border-color: var(--border) !important; }
[data-theme="dark"] .card-header h2 { color: var(--text) !important; }

/* Dark tables */
[data-theme="dark"] .table th { background: #250A10 !important; color: #E87088 !important; border-color: var(--border) !important; }
[data-theme="dark"] .table td { border-color: var(--border-soft) !important; color: var(--text); }
[data-theme="dark"] .table tr:hover td { background: #1C080C !important; }

/* Dark forms */
[data-theme="dark"] .form-control,
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] input[type="number"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="file"],
[data-theme="dark"] select,
[data-theme="dark"] textarea { background: #1C080C !important; border-color: var(--border) !important; color: var(--text) !important; }
[data-theme="dark"] .form-group label { color: #E87088 !important; }

/* Dark radio/checkbox */
[data-theme="dark"] .radio-opt,
[data-theme="dark"] .check-opt { background: #1C080C !important; border-color: var(--border) !important; color: var(--text) !important; }
[data-theme="dark"] .radio-opt:hover,
[data-theme="dark"] .check-opt:hover { background: #250A10 !important; }
[data-theme="dark"] .radio-opt.selected,
[data-theme="dark"] .check-opt.selected { background: #3D0010 !important; border-color: var(--red) !important; }

/* Dark buttons */
[data-theme="dark"] .btn-outline { background: #1C080C !important; border-color: var(--border) !important; color: var(--text) !important; }
[data-theme="dark"] .btn-outline:hover { border-color: var(--red) !important; color: var(--red-bright) !important; }

/* Dark question panels */
[data-theme="dark"] .questions-panel,
[data-theme="dark"] .listen-questions { background: #0E0205 !important; }
[data-theme="dark"] .q-instruction { background: #1C080C !important; }
[data-theme="dark"] .passage-text { color: var(--text-mid) !important; }
[data-theme="dark"] .passage-title { color: var(--text) !important; }
[data-theme="dark"] .passage-author { color: var(--muted) !important; }

/* Dark submit/nav bars */
[data-theme="dark"] .submit-bar,
[data-theme="dark"] .part-nav,
[data-theme="dark"] .ielts-topbar { background: #1C080C !important; border-color: var(--border) !important; }

/* Dark question builder */
[data-theme="dark"] .q-builder { border-color: var(--border) !important; }
[data-theme="dark"] .q-builder-header { background: #250A10 !important; }
[data-theme="dark"] .q-builder-header:hover { background: #3D1218 !important; }

/* Dark selects */
[data-theme="dark"] .match-select,
[data-theme="dark"] .inline-select-wrap select { background: #1C080C !important; border-color: var(--border) !important; color: var(--text) !important; }
[data-theme="dark"] .completion-inp,
[data-theme="dark"] .fill-input { background: #1C080C !important; border-color: var(--border) !important; color: var(--text) !important; }

/* Dark result items */
[data-theme="dark"] .result-test-item { background: #1C080C !important; border-color: var(--border) !important; color: var(--text) !important; }
[data-theme="dark"] .result-test-item .score { color: var(--red-bright) !important; }
[data-theme="dark"] .result-test-item .label,
[data-theme="dark"] .result-test-item .date { color: var(--muted) !important; }

/* Dark q-dot */
[data-theme="dark"] .q-dot { background: #1C080C !important; border-color: var(--border) !important; color: var(--text) !important; }
[data-theme="dark"] .q-dot.answered { background: linear-gradient(135deg, var(--red-deep), var(--red)) !important; color: white !important; }

/* Dark admin */
[data-theme="dark"] .admin-content { background: #0E0205 !important; }
[data-theme="dark"] .admin-header h1 { color: var(--text) !important; }
[data-theme="dark"] .admin-header p { color: var(--muted) !important; }