/* SegueQuiz design tokens ------------------------------------------------ */

/* Brand colours are sampled straight from the SegueIT logo. */
:root {
  --brand-navy: #042b56;
  --brand-grey: #878787;

  --bg: #f4f6f9;
  --bg-elevated: #ffffff;
  --bg-subtle: #eaeef4;
  --border: #dde3ec;
  --border-strong: #c3ccda;
  --text: #101c2b;
  --text-muted: #5b6779;
  --text-faint: #87919f;
  --accent: #042b56;
  --accent-strong: #0a4483;
  --accent-soft: #e4ecf6;
  --success: #10704f;
  --success-soft: #d8f0e6;
  --danger: #b3302a;
  --danger-soft: #fae2e0;
  --warning: #8c5a10;
  --warning-soft: #fcefd7;
  --gold: #a9741d;
  --bronze: #b9713f;
  --on-accent: #ffffff;
  --on-medal: #ffffff;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16, 19, 43, 0.06), 0 8px 24px rgba(16, 19, 43, 0.06);
  --shadow-lg: 0 24px 60px rgba(16, 19, 43, 0.18);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Native controls, scrollbars and autofill follow the page theme. */
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1220;
    --bg-elevated: #131d2e;
    --bg-subtle: #1c283b;
    --border: #26344a;
    --border-strong: #364763;
    --text: #eaf0f8;
    --text-muted: #a2b0c4;
    --text-faint: #7d8b9f;
    --accent: #8fb4e8;
    --accent-strong: #adc9f0;
    --accent-soft: #17263d;
    --success: #4ed3a3;
    --success-soft: #14342a;
    --danger: #ff8b82;
    --danger-soft: #3a1f1e;
    --warning: #f0b357;
    --warning-soft: #37280f;
    --gold: #f0c05a;
    --bronze: #d9955f;
    --on-accent: #08131f;
    --on-medal: #1a1206;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.55);

    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

/* Layout classes below set `display`, which would otherwise beat the
   user-agent rule for [hidden]. Keep hiding predictable. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  line-height: 1.25;
  margin: 0;
  letter-spacing: -0.015em;
}

a {
  color: var(--accent);
}

/* Layout ----------------------------------------------------------------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__inner,
.page {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 64px;
}

.page {
  padding-top: 32px;
  padding-bottom: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  text-decoration: none;
}

.brand__logo {
  height: 26px;
  width: auto;
  display: block;
}

/* The logo ships in two tints; show whichever suits the current theme. */
.brand__logo--dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .brand__logo--light {
    display: none;
  }

  .brand__logo--dark {
    display: block;
  }
}

.brand__divider {
  width: 1px;
  height: 22px;
  background: var(--border-strong);
}

.brand__product {
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
}

.spacer {
  flex: 1;
}

.page-heading {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.page-heading h1 {
  font-size: 1.75rem;
}

.page-heading p {
  margin: 6px 0 0;
  color: var(--text-muted);
}

.grid {
  display: grid;
  gap: 18px;
}

.grid--cards {
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 1fr);
  gap: 22px;
  align-items: start;
}

@media (max-width: 880px) {
  .split {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Surfaces --------------------------------------------------------------- */

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.card--flush {
  padding: 0;
  overflow: hidden;
}

.card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.card__header h2 {
  font-size: 1.05rem;
}

.card__title {
  font-size: 1.05rem;
  font-weight: 650;
}

.stack {
  display: grid;
  gap: 14px;
}

.stack--tight {
  gap: 8px;
}

.row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Buttons ---------------------------------------------------------------- */

.button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  background: var(--accent);
  color: var(--on-accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
  white-space: nowrap;
}

.button:hover {
  background: var(--accent-strong);
}

.button:active {
  transform: translateY(1px);
}

.button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.button--ghost {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.button--ghost:hover {
  background: var(--bg-subtle);
}

.button--danger {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--danger);
}

.button--danger:hover {
  background: var(--danger-soft);
  border-color: var(--danger);
}

.button--block {
  width: 100%;
  justify-content: center;
}

.button--large {
  padding: 12px 22px;
  font-size: 1rem;
}

.button--small {
  padding: 5px 11px;
  font-size: 0.82rem;
}

/* Forms ------------------------------------------------------------------ */

.field {
  display: grid;
  gap: 6px;
}

.field > label,
.label {
  font-size: 0.82rem;
  font-weight: 650;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.field__hint {
  font-size: 0.78rem;
  color: var(--text-faint);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
input[type="tel"],
input[type="url"],
textarea,
select {
  font: inherit;
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text);
}

/* Chrome paints autofilled fields with its own opaque background, which reads
   as a white box in dark mode. Repaint it with our own tokens. */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--text);
  -webkit-box-shadow: 0 0 0 1000px var(--bg-elevated) inset;
  caret-color: var(--text);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.button:focus-visible,
.option:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

textarea {
  resize: vertical;
  min-height: 74px;
}

.switch {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.9rem;
}

.switch input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.duration-input {
  display: flex;
  align-items: center;
  gap: 8px;
}

.duration-input input {
  width: 84px;
}

.duration-input span {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Badges and pills ------------------------------------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 650;
  background: var(--bg-subtle);
  color: var(--text-muted);
  white-space: nowrap;
}

.badge--live {
  background: var(--success-soft);
  color: var(--success);
}

.badge--draft {
  background: var(--warning-soft);
  color: var(--warning);
}

.badge--accent {
  background: var(--accent-soft);
  color: var(--accent);
}

.code-chip {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  background: var(--bg-subtle);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  color: var(--text);
}

.meta {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Messages --------------------------------------------------------------- */

.notice {
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 0.9rem;
  border: 1px solid transparent;
}

.notice--error {
  background: var(--danger-soft);
  border-color: var(--danger);
  color: var(--danger);
}

.notice--success {
  background: var(--success-soft);
  border-color: var(--success);
  color: var(--success);
}

.notice--warning {
  background: var(--warning-soft);
  border-color: var(--warning);
  color: var(--warning);
}

.notice--info {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}


.empty-state {
  text-align: center;
  padding: 52px 20px;
  color: var(--text-muted);
}

.empty-state h3 {
  color: var(--text);
  margin-bottom: 6px;
}

/* Toast ------------------------------------------------------------------ */

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 16px);
  background: var(--text);
  color: var(--bg-elevated);
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 100;
}

.toast--visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* Dialog ----------------------------------------------------------------- */

dialog {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  color: var(--text);
  padding: 0;
  width: min(520px, calc(100vw - 32px));
  box-shadow: var(--shadow-lg);
}

dialog::backdrop {
  background: rgba(10, 12, 26, 0.55);
  backdrop-filter: blur(2px);
}

.dialog__body {
  padding: 22px;
}

.dialog__footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 22px;
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
}

/* Tables ----------------------------------------------------------------- */

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}

th {
  text-align: left;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tbody tr:last-child td {
  border-bottom: none;
}

.numeric {
  font-variant-numeric: tabular-nums;
}

.rank-medal {
  display: inline-grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
  background: var(--bg-subtle);
  color: var(--text-muted);
}

.rank-medal--1 {
  background: var(--gold);
  color: var(--on-medal);
}

.rank-medal--2 {
  background: var(--border-strong);
  color: var(--text);
}

.rank-medal--3 {
  background: var(--bronze);
  color: var(--on-medal);
}

/* Stats ------------------------------------------------------------------ */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}

.stat {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 15px 17px;
}

.stat__value {
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Visually-hidden -------------------------------------------------------- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}