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

:root {
  --bg: #1A1A1A;
  --bg-card: #232323;
  --bg-card-alt: #2A2A2A;
  --gold: #AB824D;
  --gold-light: #C9A876;
  --white: #FFFFFF;
  --text-muted: #B8B8B8;
  --border: rgba(171, 130, 77, 0.28);
  --danger: #C25B4A;
  --success: #5A9E6F;
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--white);
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
  min-height: 100vh;
}

body {
  display: flex;
  flex-direction: column;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  border-bottom: 1px solid var(--border);
  background: #1c1c1c;
}

.topbar .logo-wrap,
.quiz-header .logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.topbar img.logo,
.quiz-header img.logo {
  height: 34px;
  width: auto;
  display: block;
}

.topbar .title,
.quiz-header .title {
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--gold-light);
  font-size: 15px;
  text-transform: uppercase;
}

.main-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.main-wrap.top-align {
  align-items: flex-start;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  width: 100%;
}

.card.narrow { max-width: 440px; }
.card.medium { max-width: 640px; }
.card.wide { max-width: 980px; }

h1, h2, h3 {
  font-weight: 600;
  margin-top: 0;
}

h1 { font-size: 26px; }
h2 { font-size: 20px; color: var(--gold-light); }
h3 { font-size: 16px; }

p { color: var(--text-muted); line-height: 1.6; }

.gold-text { color: var(--gold-light); }

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 28px;
  background: #171717;
  border-radius: 8px;
  padding: 4px;
  border: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 10px 14px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.active {
  background: var(--gold);
  color: var(--white);
  font-weight: 600;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
  margin-top: 16px;
  font-weight: 500;
}

label:first-of-type { margin-top: 0; }

input[type="text"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 12px 14px;
  background: #171717;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--white);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
  border-color: var(--gold);
}

textarea { resize: vertical; min-height: 90px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--gold);
  color: var(--white);
  border: none;
  border-radius: 7px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, opacity 0.2s ease;
}

.btn:hover { background: var(--gold-light); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--white);
}
.btn.secondary:hover { border-color: var(--gold); background: rgba(171,130,77,0.08); }

.btn.danger { background: var(--danger); color: var(--white); }
.btn.danger:hover { background: #d16a57; }

.btn.block { width: 100%; }
.btn.small { padding: 7px 12px; font-size: 12.5px; }

.error-msg {
  background: rgba(194, 91, 74, 0.12);
  border: 1px solid rgba(194, 91, 74, 0.4);
  color: #e19183;
  padding: 10px 14px;
  border-radius: 7px;
  font-size: 13px;
  margin-top: 16px;
  display: none;
}
.error-msg.show { display: block; }

.success-msg {
  background: rgba(90, 158, 111, 0.12);
  border: 1px solid rgba(90, 158, 111, 0.4);
  color: #8fd1a2;
  padding: 10px 14px;
  border-radius: 7px;
  font-size: 13px;
  margin-top: 16px;
  display: none;
}
.success-msg.show { display: block; }

.hint {
  font-size: 12px;
  color: #777;
  margin-top: 18px;
  text-align: center;
}

.admin-shell {
  display: flex;
  min-height: calc(100vh - 72px);
}

.sidebar {
  width: 220px;
  background: #191919;
  border-right: 1px solid var(--border);
  padding: 24px 0;
  flex-shrink: 0;
}

.sidebar button.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 24px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  border-left: 3px solid transparent;
}

.sidebar button.nav-item:hover { color: var(--white); background: rgba(255,255,255,0.03); }

.sidebar button.nav-item.active {
  color: var(--gold-light);
  border-left-color: var(--gold);
  background: rgba(171,130,77,0.08);
  font-weight: 600;
}

.admin-content {
  flex: 1;
  padding: 32px 40px;
  overflow-x: auto;
}

.section { display: none; }
.section.active { display: block; }

.flex-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
  font-size: 13.5px;
}

th, td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--gold-light);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11.5px;
  letter-spacing: 0.4px;
}

tr:hover td { background: rgba(255,255,255,0.02); }

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
}

.badge.gray { background: rgba(255,255,255,0.08); color: #ccc; }
.badge.gold { background: rgba(171,130,77,0.2); color: var(--gold-light); }
.badge.green { background: rgba(90,158,111,0.18); color: #8fd1a2; }
.badge.red { background: rgba(194,91,74,0.18); color: #e19183; }

.panel-box {
  background: var(--bg-card-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
  overflow-y: auto;
  z-index: 100;
}
.modal-overlay.show { display: flex; }

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 760px;
  width: 100%;
}

.modal-close {
  float: right;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}

.question-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
  margin-top: 14px;
  background: #1e1e1e;
}

.question-block .q-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.opt-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
}

.opt-row input { width: auto; }

/* Quiz taking page */
.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  border-bottom: 1px solid var(--border);
  background: #1c1c1c;
  position: sticky;
  top: 0;
  z-index: 10;
}

.timer-box {
  background: #171717;
  border: 1px solid var(--gold);
  color: var(--gold-light);
  padding: 8px 18px;
  border-radius: 7px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
}

.timer-box.warning { border-color: var(--danger); color: #e19183; animation: pulse 1s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.progress-bar-track {
  width: 100%;
  height: 6px;
  background: #171717;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 28px;
}

.progress-bar-fill {
  height: 100%;
  background: var(--gold);
  transition: width 0.3s ease;
}

.q-category {
  display: inline-block;
  color: var(--gold-light);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 600;
  margin-bottom: 10px;
}

.q-index {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.q-text {
  font-size: 19px;
  font-weight: 500;
  margin: 10px 0 24px;
  line-height: 1.5;
}

.option-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.option-card:hover { border-color: var(--gold); background: rgba(171,130,77,0.05); }

.option-card.selected {
  border-color: var(--gold);
  background: rgba(171,130,77,0.12);
}

.option-letter {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #171717;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  color: var(--gold-light);
}

.option-card.selected .option-letter {
  background: var(--gold);
  color: var(--white);
  border-color: var(--gold);
}

.option-card input { display: none; }

.code-block {
  background: #141414;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-x: auto;
  font-family: 'Courier New', Consolas, monospace;
  font-size: 13.5px;
  margin: 6px 0 22px;
}

.code-line {
  display: flex;
  align-items: flex-start;
  padding: 4px 16px;
  border-left: 3px solid transparent;
  cursor: pointer;
  white-space: pre;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.code-line:hover { background: rgba(171,130,77,0.08); }

.code-line.selected {
  background: rgba(171,130,77,0.16);
  border-left-color: var(--gold);
}

.code-line-num {
  width: 32px;
  flex-shrink: 0;
  color: #6b6b6b;
  user-select: none;
  text-align: right;
  margin-right: 18px;
}

.code-line.selected .code-line-num {
  color: var(--gold-light);
  font-weight: 700;
}

.code-line-content {
  color: #d8d8d8;
  white-space: pre;
}

.code-line.selected .code-line-content { color: var(--white); }

textarea.code-input {
  font-family: 'Courier New', Consolas, monospace;
  font-size: 13px;
  white-space: pre;
}

.result-hero {
  text-align: center;
  padding: 20px 0 10px;
}

.result-score {
  font-size: 58px;
  font-weight: 800;
  margin: 12px 0;
}

.result-score.pass { color: #8fd1a2; }
.result-score.fail { color: #e19183; }

.result-label {
  font-size: 20px;
  font-weight: 600;
  padding: 8px 22px;
  border-radius: 30px;
  display: inline-block;
  margin-bottom: 20px;
}

.result-label.pass { background: rgba(90,158,111,0.15); color: #8fd1a2; }
.result-label.fail { background: rgba(194,91,74,0.15); color: #e19183; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 26px 0;
}

.stat-tile {
  background: #1e1e1e;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.stat-tile .num { font-size: 26px; font-weight: 700; color: var(--gold-light); }
.stat-tile .lbl { font-size: 11.5px; color: var(--text-muted); text-transform: uppercase; margin-top: 4px; }

.answer-review {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-top: 12px;
  background: #1e1e1e;
}

.answer-review .verdict {
  float: right;
}

footer.page-footer {
  text-align: center;
  padding: 20px;
  color: #555;
  font-size: 12px;
  border-top: 1px solid var(--border);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 720px) {
  .admin-shell { flex-direction: column; }
  .sidebar { width: 100%; display: flex; overflow-x: auto; padding: 8px; }
  .sidebar button.nav-item { border-left: none; border-bottom: 3px solid transparent; white-space: nowrap; }
  .sidebar button.nav-item.active { border-left: none; border-bottom-color: var(--gold); }
  .admin-content { padding: 20px; }
  .topbar, .quiz-header { padding: 14px 18px; }
  .two-col { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
}