/* ============================================================
   Live Quiz Game — design tokens
   Palette: deep indigo night sky, electric violet + acid lime
   accents, warm podium tones for 1st/2nd/3rd.
   Display type: Bungee (arcade/game-show). Body: Inter.
   ============================================================ */

:root {
  --bg: #14132b;
  --bg-alt: #1d1b3f;
  --surface: #24224d;
  --surface-raised: #2d2a5e;
  --border: #3a3770;

  --violet: #7c5cfc;
  --violet-dim: #5b3fd6;
  --lime: #c8ff4d;
  --coral: #ff6f59;
  --sky: #4dd8ff;
  --danger: #ff5c7a;

  --gold: #ffd166;
  --silver: #c9ced6;
  --bronze: #e0954d;

  --text: #f3f1fa;
  --text-dim: #a9a6c7;
  --text-faint: #726f9c;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);

  --font-display: 'Bungee', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

body {
  background: radial-gradient(circle at 50% -10%, var(--bg-alt), var(--bg) 60%);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.15;
  margin: 0;
}

p {
  margin: 0;
  color: var(--text-dim);
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
}

button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 2px;
}

input {
  font-family: var(--font-body);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- layout shells ---------- */

.screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  gap: 24px;
}

/* .screen sets display:flex, which (being author CSS) silently overrides
   the browser's built-in [hidden] { display:none } rule at equal
   specificity. Without this, every step-section renders at once, stacked
   top to bottom, instead of acting as a single full-screen "page". */
.screen[hidden] {
  display: none;
}

.screen--top {
  justify-content: flex-start;
  padding-top: 48px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 480px;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--lime);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
  display: block;
}

.logo {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--text);
}
.logo span {
  color: var(--lime);
}

/* ---------- buttons ---------- */

.btn {
  font-family: var(--font-display);
  font-size: 15px;
  padding: 16px 28px;
  border-radius: var(--radius-sm);
  background: var(--violet);
  color: white;
  transition: transform 0.12s ease, background 0.12s ease;
  width: 100%;
}
.btn:hover {
  background: var(--violet-dim);
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}
.btn--lime {
  background: var(--lime);
  color: #14132b;
}
.btn--lime:hover {
  background: #b3ef2e;
}
.btn--ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn--ghost:hover {
  background: var(--surface-raised);
}

/* ---------- form fields ---------- */

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.field label {
  font-size: 13px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.field input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  font-size: 18px;
}
.field input:focus {
  border-color: var(--violet);
}
.field input.join-code {
  font-family: var(--font-display);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-align: center;
}

/* ---------- emoji picker ---------- */

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.emoji-choice {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 22px;
  padding: 8px 0;
  transition: border-color 0.12s ease, transform 0.12s ease;
}
.emoji-choice:hover {
  transform: scale(1.08);
}
.emoji-choice.selected {
  border-color: var(--lime);
  background: rgba(200, 255, 77, 0.12);
}

/* ---------- lobby / player roster ---------- */

.join-code-display {
  font-family: var(--font-display);
  font-size: clamp(48px, 10vw, 96px);
  letter-spacing: 0.1em;
  color: var(--lime);
  text-align: center;
}

.player-count {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-dim);
}

.player-roster {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: 900px;
}

.player-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 18px 10px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  animation: chip-in 0.25s ease;
}
.player-chip .emoji {
  font-size: 20px;
}
@keyframes chip-in {
  from { opacity: 0; transform: scale(0.8) translateY(6px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ---------- question view ---------- */

.question-wrap {
  width: 100%;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.question-text {
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 34px);
  text-align: center;
  max-width: 640px;
}

.timer-ring {
  width: 72px;
  height: 72px;
  position: relative;
}
.timer-ring svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}
.timer-ring circle {
  fill: none;
  stroke-width: 6;
}
.timer-ring .track {
  stroke: var(--border);
}
.timer-ring .progress {
  stroke: var(--lime);
  stroke-linecap: round;
  transition: stroke-dashoffset 0.2s linear, stroke 0.2s linear;
}
.timer-ring .count {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 20px;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  width: 100%;
}
@media (max-width: 560px) {
  .options-grid {
    grid-template-columns: 1fr;
  }
}

.option-btn {
  border-radius: var(--radius-sm);
  padding: 22px 18px;
  font-size: 17px;
  color: #14132b;
  font-weight: 600;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: transform 0.1s ease, filter 0.1s ease, opacity 0.15s ease;
}
.option-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  filter: brightness(1.06);
}
.option-btn:disabled {
  opacity: 0.55;
}
.option-btn .shape {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background: rgba(20, 19, 43, 0.55);
}
.opt-a { background: var(--violet); color: white; }
.opt-a .shape { clip-path: polygon(50% 0%, 0% 100%, 100% 100%); }
.opt-b { background: var(--lime); }
.opt-b .shape { transform: rotate(45deg); }
.opt-c { background: var(--coral); color: white; }
.opt-c .shape { border-radius: 50%; }
.opt-d { background: var(--sky); }
.opt-d .shape { border-radius: 3px; }

.option-btn.correct {
  outline: 4px solid var(--lime);
}
.option-btn.incorrect {
  outline: 4px solid var(--danger);
}

.locked-in {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--lime);
  text-align: center;
}

/* ---------- reveal ---------- */

.reveal-banner {
  font-family: var(--font-display);
  font-size: clamp(26px, 6vw, 42px);
  text-align: center;
}
.reveal-banner.correct { color: var(--lime); }
.reveal-banner.incorrect { color: var(--danger); }

.points-earned {
  font-size: 20px;
  color: var(--text-dim);
  text-align: center;
}

/* ---------- animated leaderboard (signature element) ---------- */

.leaderboard {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.leaderboard-row {
  display: grid;
  grid-template-columns: 36px 32px 1fr auto;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.4s ease;
}

.leaderboard-row .place {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text-faint);
  text-align: center;
}
.leaderboard-row.rank-1 .place { color: var(--gold); }
.leaderboard-row.rank-2 .place { color: var(--silver); }
.leaderboard-row.rank-3 .place { color: var(--bronze); }

.leaderboard-row.rank-1 { border-color: var(--gold); }
.leaderboard-row.rank-2 { border-color: var(--silver); }
.leaderboard-row.rank-3 { border-color: var(--bronze); }

.leaderboard-row .emoji {
  font-size: 20px;
}

.leaderboard-row .name {
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard-row .score {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--lime);
}

.leaderboard-row .bar {
  grid-column: 1 / -1;
  height: 4px;
  background: var(--bg);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 4px;
}
.leaderboard-row .bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--violet), var(--lime));
  transition: width 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ---------- podium (final results) ---------- */

.podium {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  justify-content: center;
  width: 100%;
  max-width: 560px;
}
.podium-place {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
}
.podium-block {
  width: 100%;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12px;
  font-family: var(--font-display);
  color: #14132b;
}
.podium-place.first .podium-block { height: 160px; background: var(--gold); order: 2; }
.podium-place.second .podium-block { height: 120px; background: var(--silver); }
.podium-place.third .podium-block { height: 90px; background: var(--bronze); }
.podium-place.first { order: 2; }
.podium-place.second { order: 1; }
.podium-place.third { order: 3; }

.podium-emoji {
  font-size: 32px;
}
.podium-name {
  font-size: 14px;
  text-align: center;
}
.podium-score {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--lime);
}

/* ---------- misc ---------- */

.center-text {
  text-align: center;
}
.muted-link {
  color: var(--text-faint);
  font-size: 13px;
  text-decoration: underline;
  background: none;
}
.error-text {
  color: var(--danger);
  font-size: 14px;
  text-align: center;
}
.quiz-pick {
  width: 100%;
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 10px;
  color: var(--text);
  transition: border-color 0.12s ease, transform 0.12s ease;
}
.quiz-pick:hover {
  border-color: var(--violet);
  transform: translateY(-1px);
}
.quiz-pick .title {
  font-family: var(--font-display);
  font-size: 15px;
  display: block;
  margin-bottom: 4px;
}
.quiz-pick .topic {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- quiz editor ---------- */

.editor-wrap {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.quiz-pick-row {
  display: flex;
  gap: 10px;
  align-items: center;
}
.quiz-pick-row .quiz-pick {
  margin-bottom: 0;
  flex: 1;
}
.icon-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  padding: 12px 14px;
  font-size: 15px;
  flex-shrink: 0;
}
.icon-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.question-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
}
.qb-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.qb-header .qb-label {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--lime);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.qb-row {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
}
.qb-row .field {
  margin-bottom: 0;
  flex: 1;
}
.qb-row .field.time-field {
  max-width: 140px;
}
.qb-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.qb-option {
  display: flex;
  align-items: center;
  gap: 10px;
}
.qb-option input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--lime);
  flex-shrink: 0;
}
.qb-option input[type="text"] {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
}
.qb-option input[type="text"]:focus {
  border-color: var(--violet);
}
.qb-hint {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 10px;
}
.editor-actions {
  display: flex;
  gap: 12px;
}
.editor-actions .btn {
  flex: 1;
}

/* ---------- AI quiz-generate modal ---------- */

.btn-row {
  display: flex;
  gap: 10px;
}
.btn-row .btn {
  width: auto;
  flex: 1;
  text-decoration: none;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 9, 26, 0.72);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px;
  z-index: 50;
  overflow-y: auto;
}
/* Same [hidden]-vs-author-CSS specificity issue as .screen: without this,
   .modal-overlay's own display:flex beats the browser's built-in
   [hidden]{display:none} and the modal stays visible. */
.modal-overlay[hidden] {
  display: none;
}

.modal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 560px;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.ai-step-label {
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--lime);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 4px;
}

.ai-step-desc {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.field textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font-body);
  resize: vertical;
  min-height: 90px;
  width: 100%;
}
.field textarea:focus {
  border-color: var(--violet);
}
.field textarea.mono {
  font-family: 'Menlo', 'Consolas', monospace;
  font-size: 12px;
  line-height: 1.5;
}

.copy-feedback {
  font-size: 13px;
  color: var(--lime);
  min-height: 16px;
  text-align: center;
}

.modal-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 4px 0;
}