@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  --ink: #1B1D24;
  --paper: #F7F5F0;
  --gold: #C9A227;
  --red: #A6303B;
  --mist: #E4E1D8;
  --jade: #3F6B4A;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
}

header.top-bar {
  background: var(--ink);
  color: var(--paper);
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header.top-bar .brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.top-bar-logo {
  height: 28px;
  width: auto;
  max-width: 160px;
}

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(27, 29, 36, 0.6);
  z-index: 50;
  padding: 24px;
  overflow-y: auto;
}

.overlay.open { display: block; }

.overlay-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.overlay-close {
  position: absolute;
  top: 20px;
  right: 20px;
}

.answer-choice-row {
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 4px;
}

.answer-choice-row.answer-correct {
  background: #e9f1ec;
  color: var(--jade);
}

.answer-choice-row.answer-wrong {
  background: #fbeaec;
  color: var(--red);
}

header.top-bar .meta {
  font-size: 13px;
  color: var(--mist);
  display: flex;
  align-items: center;
  gap: 16px;
}

header.top-bar button {
  background: none;
  border: 1px solid var(--mist);
  color: var(--paper);
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
}

header.top-bar button:hover { border-color: var(--gold); color: var(--gold); }

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px;
}

main.wide { max-width: 960px; }

h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 26px;
  margin: 0 0 6px;
}

h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  margin: 40px 0 14px;
}

h2:first-of-type { margin-top: 0; }

p.sub {
  color: #55564f;
  margin: 0 0 32px;
  font-size: 15px;
}

.card {
  background: #fff;
  border: 1px solid var(--mist);
  border-radius: 10px;
  padding: 32px;
}

.card + .card { margin-top: 16px; }

label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin: 18px 0 6px;
}

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

input:not([type="radio"]):not([type="checkbox"]),
select,
textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--mist);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 15px;
  background: var(--paper);
  resize: vertical;
}

input:focus, select:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}

button.primary {
  margin-top: 24px;
  width: 100%;
  background: var(--ink);
  color: var(--paper);
  border: none;
  padding: 13px;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
}

button.primary:hover { background: #2c2f3a; }
button.primary:disabled { opacity: 0.5; cursor: not-allowed; }

button.primary.danger { background: var(--red); }
button.primary.danger:hover { background: #8a2731; }

button.secondary {
  background: none;
  border: 1px solid var(--ink);
  color: var(--ink);
  padding: 9px 16px;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
}

button.secondary:hover { background: var(--ink); color: var(--paper); }

a.link {
  color: var(--ink);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--mist);
}

.error-msg {
  background: #fbeaec;
  color: var(--red);
  border: 1px solid #f0c6cb;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 18px;
}

/* Test list */
.test-row {
  border: 1px solid var(--mist);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 12px;
  background: #fff;
}

.test-row-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.test-row-title {
  font-weight: 600;
  font-size: 16px;
}

.test-row-meta {
  font-size: 13px;
  color: #6d6e65;
  margin-top: 4px;
}

.badge {
  display: inline-block;
  background: var(--paper);
  border: 1px solid var(--mist);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 12px;
}

.badge.locked { color: var(--red); border-color: #f0c6cb; background: #fbeaec; }
.badge.status-good { color: var(--jade); border-color: #c7dccd; background: #e9f1ec; }

.test-row-start {
  margin-top: 16px;
  display: none;
  gap: 10px;
  align-items: center;
}

.test-row-start.open { display: flex; }

.test-row-start input {
  flex: 1;
  margin: 0;
}

/* Timer, styled as a stripe of belt segments ticking down */
.timer-bar {
  display: flex;
  gap: 3px;
  margin-bottom: 8px;
}

.timer-bar .segment {
  flex: 1;
  height: 6px;
  background: var(--gold);
  border-radius: 2px;
  transition: background 0.3s;
}

.timer-bar .segment.spent { background: var(--mist); }
.timer-bar.low .segment:not(.spent) { background: var(--red); }

.timer-readout {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  text-align: right;
  margin-bottom: 24px;
}

.question-block {
  border-bottom: 1px solid var(--mist);
  padding: 22px 0;
}

.question-block:last-of-type { border-bottom: none; }

.question-text {
  font-weight: 500;
  margin-bottom: 12px;
}

.choice {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 6px;
  cursor: pointer;
}

.choice:hover { background: var(--paper); }
.choice input { margin: 0; }

.result-score {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 600;
  margin: 8px 0;
}

.result-score.pass { color: var(--jade); }
.result-score.fail { color: var(--red); }

table.results {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

table.results th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #77786f;
  border-bottom: 1px solid var(--mist);
  padding: 8px 10px;
}

table.results th.sortable {
  cursor: pointer;
  user-select: none;
}

table.results th.sortable:hover {
  color: var(--ink);
}

.sort-indicator {
  display: inline-block;
  width: 12px;
}

table.results td {
  padding: 10px;
  border-bottom: 1px solid var(--mist);
}

.tag-pill {
  display: inline-block;
  background: var(--paper);
  border: 1px solid var(--mist);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 12px;
}

.test-image {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--mist);
  margin-bottom: 16px;
}

.intro-text {
  white-space: pre-wrap;
  line-height: 1.6;
  margin: 0 0 20px;
}

.intro-text.monospace {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  white-space: pre;
  overflow-x: auto;
  display: block;
  background: var(--paper);
  border: 1px solid var(--mist);
  border-radius: 6px;
  padding: 14px 16px;
}

@media (max-width: 480px) {
  .intro-text.monospace {
    font-size: 11px;
    padding: 12px 14px;
  }
}

.question-preceding {
  margin-bottom: 16px;
  padding-bottom: 4px;
}

.numeric-answer {
  padding: 9px 10px;
}

.numeric-answer input {
  max-width: 200px;
  font-family: var(--font-mono);
  font-size: 16px;
}

.site-logo {
  display: block;
  height: 56px;
  width: auto;
  max-width: 280px;
  margin-bottom: 20px;
}

/* Admin page */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--mist);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.tab-btn {
  background: none;
  border: none;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: #6d6e65;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--ink); border-bottom-color: var(--gold); }

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

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-heading h2 { margin: 0; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}

.form-grid .full { grid-column: 1 / -1; }

.btn-row {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.btn-row button.primary { margin-top: 0; width: auto; padding: 10px 20px; }

button.small {
  background: none;
  border: 1px solid var(--mist);
  padding: 5px 12px;
  border-radius: 5px;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font-body);
  margin-right: 6px;
}

button.small:hover { border-color: var(--ink); }
button.small.danger { color: var(--red); border-color: #f0c6cb; }
button.small.danger:hover { background: #fbeaec; }
button.small:disabled { opacity: 0.35; cursor: not-allowed; }
button.small:disabled:hover { border-color: var(--mist); }

button.small.view-answers-btn {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  font-weight: 500;
}

button.small.view-answers-btn:hover {
  background: #2c2f3a;
  border-color: #2c2f3a;
}

.success-msg {
  background: #e9f1ec;
  color: var(--jade);
  border: 1px solid #c7dccd;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 18px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 720px) {
  .form-grid, .two-col { grid-template-columns: 1fr; }
}