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

:root {
  --bg: #0a0a0f;
  --card: #111118;
  --border: #1e1e2a;
  --gold: #C8A84E;
  --gold-dim: #a08838;
  --text: #e0e0e0;
  --text-dim: #888;
  --red: #e74c3c;
  --green: #2ecc71;
  --radius: 10px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ═══ Landing page ═══ */
.landing-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.landing-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  max-width: 480px;
  width: 100%;
}

.landing-logo {
  color: var(--gold);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-align: center;
}

.landing-title {
  color: var(--text);
  font-size: 28px;
  font-weight: 600;
  text-align: center;
  margin: 16px 0 4px;
}

.landing-subtitle {
  color: var(--text-dim);
  text-align: center;
  font-size: 15px;
  margin-bottom: 28px;
}

.landing-info {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  font-size: 14px;
}

.info-icon { font-size: 18px; }

.landing-rules {
  background: rgba(200, 168, 78, 0.06);
  border: 1px solid rgba(200, 168, 78, 0.15);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 28px;
}

.landing-rules p {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.landing-rules p:last-child { margin-bottom: 0; }

.landing-form { display: flex; flex-direction: column; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus {
  border-color: var(--gold);
}

.btn-start {
  background: var(--gold);
  color: #0a0a0f;
  border: none;
  border-radius: 8px;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 8px;
}

.btn-start:hover { background: var(--gold-dim); }
.btn-start:disabled { opacity: 0.5; cursor: not-allowed; }

.landing-footer {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 20px;
}

/* ═══ Thank you ═══ */
.thankyou-card { text-align: center; }

.thankyou-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(46, 204, 113, 0.12);
  color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 24px auto 16px;
}

.thankyou-title {
  color: var(--text);
  font-size: 28px;
  margin-bottom: 12px;
}

.thankyou-text {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 4px;
}

.thankyou-divider {
  height: 1px;
  background: var(--border);
  margin: 28px 0;
}

.thankyou-note {
  color: var(--text-dim);
  font-size: 13px;
}

/* ═══ Top bar ═══ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  height: 64px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-logo {
  color: var(--gold);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.topbar-name {
  color: var(--text-dim);
  font-size: 14px;
}

.topbar-timer {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.timer-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.timer-value {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  line-height: 1;
}

.timer-value.timer-urgent {
  color: var(--red);
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.topbar-right {
  display: flex;
  gap: 16px;
  align-items: center;
}

.admin-badge {
  background: rgba(200, 168, 78, 0.15);
  color: var(--gold);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.admin-link {
  color: var(--text-dim);
  font-size: 14px;
  transition: color 0.2s;
}
.admin-link:hover { color: var(--gold); text-decoration: none; }

/* ═══ Test page ═══ */
.test-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 84px 20px 40px;
}

.test-progress {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  margin-bottom: 24px;
}

.progress-text {
  color: var(--text-dim);
  font-size: 14px;
}

.section-header {
  margin: 32px 0 16px;
}

.section-header h2 {
  color: var(--gold);
  font-size: 18px;
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gold);
}

.question-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.question-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.q-number {
  color: var(--gold);
  font-weight: 700;
  font-size: 15px;
}

.q-points {
  color: var(--text-dim);
  font-size: 13px;
}

.q-text {
  color: var(--text);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.q-text pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px;
  margin: 12px 0;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.5;
}

.q-text code {
  font-family: 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 13px;
}

.q-text blockquote {
  border-left: 3px solid var(--gold);
  padding: 12px 16px;
  margin: 12px 0;
  background: rgba(200, 168, 78, 0.05);
  border-radius: 0 6px 6px 0;
  font-style: italic;
  color: var(--text-dim);
}

.q-text p { margin-bottom: 8px; }

.answer-textarea {
  width: 100%;
  min-height: 120px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

.answer-textarea:focus { border-color: var(--gold); }

/* ═══ MCQ options ═══ */
.mcq-options { margin-bottom: 8px; }

.mcq-option {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.mcq-option:hover { border-color: #333; }

.mcq-option.selected {
  border: 2px solid var(--gold);
  background: #1a1a10;
}

.mcq-label {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(200, 168, 78, 0.1);
  color: var(--gold);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
}

.mcq-option.selected .mcq-label {
  background: var(--gold);
  color: #0a0a0f;
}

.mcq-text {
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ═══ Upload zone ═══ */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 16px;
  outline: none;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--gold);
  background: rgba(200, 168, 78, 0.04);
}

.upload-prompt p {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 8px;
}

.upload-hint {
  font-size: 12px !important;
  color: var(--text-dim) !important;
  opacity: 0.7;
}

.upload-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.upload-preview img {
  max-width: 100%;
  max-height: 300px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.upload-status {
  font-size: 13px;
  color: var(--green);
  font-weight: 500;
}

/* ═══ Submit section ═══ */
.submit-section {
  text-align: center;
  padding: 32px 0;
}

.btn-submit {
  background: var(--gold);
  color: #0a0a0f;
  border: none;
  border-radius: 8px;
  padding: 16px 48px;
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn-submit:hover { background: var(--gold-dim); }
.btn-submit:active { transform: scale(0.98); }
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; }

.submit-warning {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 12px;
}

/* ═══ Admin panel ═══ */
.admin-body { padding-top: 64px; }

.admin-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.admin-container h1 {
  color: var(--text);
  font-size: 24px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.count-badge {
  background: var(--gold);
  color: #0a0a0f;
  font-size: 14px;
  padding: 2px 10px;
  border-radius: 12px;
  font-weight: 600;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.admin-table th {
  background: rgba(200, 168, 78, 0.08);
  color: var(--gold);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.admin-table td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

.admin-table tr:last-child td { border-bottom: none; }

.admin-table tr:hover td { background: rgba(255, 255, 255, 0.02); }

.empty-cell { text-align: center; color: var(--text-dim); padding: 40px !important; }

.view-link {
  color: var(--gold);
  font-weight: 500;
  font-size: 13px;
}

/* ═══ Admin: candidate view ═══ */
.candidate-info {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.candidate-info h1 {
  margin-bottom: 12px;
}

.info-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  font-size: 14px;
}

.info-grid span:nth-child(odd) {
  color: var(--text-dim);
  font-weight: 500;
}

.score-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  position: sticky;
  top: 64px;
  z-index: 50;
}

.score-bar h2 {
  color: var(--text);
  font-size: 18px;
}

.score-bar h2 span { color: var(--gold); }

.bottom-bar { position: static; margin-top: 20px; }

.btn-save {
  background: var(--gold);
  color: #0a0a0f;
  border: none;
  border-radius: 6px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.btn-save:hover { background: var(--gold-dim); }

.admin-q-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 12px;
}

.admin-q-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.q-details {
  margin-bottom: 12px;
}

.q-details summary {
  color: var(--text-dim);
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}

.q-text-small {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-top: 8px;
  padding: 12px;
  background: var(--bg);
  border-radius: 6px;
}

.q-text-small pre {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px;
  margin: 8px 0;
  overflow-x: auto;
  font-size: 12px;
}

.admin-answer h4,
.admin-upload h4 {
  color: var(--text-dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.answer-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px;
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
}

.no-answer { color: var(--text-dim); }

.admin-upload { margin: 12px 0; }

.admin-img {
  max-width: 100%;
  max-height: 500px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.admin-score-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.admin-score-row label {
  color: var(--text-dim);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.score-input {
  width: 70px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 8px;
  color: var(--gold);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  outline: none;
}

.score-input:focus { border-color: var(--gold); }

.score-max { color: var(--text-dim); font-size: 14px; }

/* ═══ Responsive ═══ */
@media (max-width: 768px) {
  .topbar { padding: 10px 16px; }
  .topbar-logo { font-size: 14px; }
  .topbar-name { display: none; }
  .timer-value { font-size: 22px; }

  .landing-card { padding: 32px 24px; }
  .landing-title { font-size: 22px; }
  .landing-info { gap: 12px; }

  .test-container { padding: 76px 12px 32px; }
  .question-card { padding: 16px; }
  .answer-textarea { min-height: 100px; padding: 10px; }

  .section-header h2 { font-size: 15px; }
  .q-text { font-size: 13px; }

  .admin-container { padding: 16px 12px; }
  .admin-table { font-size: 13px; }
  .admin-table th, .admin-table td { padding: 8px 10px; }

  .score-bar { flex-direction: column; gap: 10px; text-align: center; }
  .info-grid { font-size: 13px; }
}

@media (max-width: 480px) {
  .landing-info { flex-direction: column; align-items: center; gap: 8px; }
  .topbar { height: 56px; }
  .test-container { padding-top: 68px; }
  .upload-zone { padding: 20px; }
}