@charset "UTF-8";
:root {
  --bg: linear-gradient(to bottom right, #4f4f4f, #2f2f2f);
  --surface: #12121a;
  --surface2: #1c1c28;
  --border: #2a2a3d;
  --accent: #ffff;
  --accent2: #ff4776;
  --text: #e8e8f0;
  --text-muted: #6b6b8a;
  --gold: #ffd700;
  --silver: #c0c0c0;
  --bronze: #cd7f32;
  --font-display: "Bebas Neue", sans-serif;
  --font-mono: "DM Mono", monospace;
  --font-body: "DM Sans", sans-serif;
  --radius: 8px;
  --radius-lg: 16px;
}

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

html,
body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.35;
}

#app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

/* ── NAVBAR ───────────────────────────────── */
nav.navbar {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav.navbar .brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-decoration: none;
  flex: 1;
}

nav.navbar a.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.35rem 0.9rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color 0.2s, border-color 0.2s;
}

nav.navbar a.nav-link:hover,
nav.navbar a.nav-link.active {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── LAYOUT ───────────────────────────────── */
.page {
  flex: 1;
  padding: 3rem 2rem;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

/* ── LEADERBOARD ──────────────────────────── */
.lb-header {
  margin-bottom: 2.5rem;
}

.lb-header h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--text);
}

.lb-header h1 span {
  color: var(--accent);
}

.lb-header p {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  letter-spacing: 0.08em;
}

.lb-empty {
  text-align: center;
  padding: 5rem 2rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.9rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}

.lb-empty .big {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.lb-table {
  width: 100%;
  border-collapse: collapse;
}

.lb-table thead tr {
  border-bottom: 1px solid var(--border);
}

.lb-table thead th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.6rem 1rem;
  text-align: left;
}

.lb-table thead th:last-child {
  text-align: right;
}

.lb-table tbody tr {
  border-bottom: 1px solid rgba(42, 42, 61, 0.5);
  transition: background 0.15s;
  animation: rowIn 0.4s ease both;
}

.lb-table tbody tr:hover {
  background: var(--surface);
}

@keyframes rowIn {
  from {
    opacity: 0;
    transform: translateX(-12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
.lb-table td {
  padding: 1rem;
  font-size: 0.95rem;
  vertical-align: middle;
}

.lb-rank {
  font-family: var(--font-display);
  font-size: 1.4rem;
  width: 3rem;
}

.lb-rank.r1 {
  color: var(--gold);
}

.lb-rank.r2 {
  color: var(--silver);
}

.lb-rank.r3 {
  color: var(--bronze);
}

.lb-name {
  font-weight: 600;
}

.lb-clue {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.lb-score {
  text-align: right;
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: 0.04em;
}

.lb-score.s-high {
  color: var(--accent);
}

.lb-score.s-mid {
  color: var(--gold);
}

.lb-score.s-low {
  color: var(--text-muted);
}

.lb-clear-btn {
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.lb-clear-btn:hover {
  color: var(--accent2);
  border-color: var(--accent2);
}

/* ── GAME ─────────────────────────────────── */
.game-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.game-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: 0.04em;
  line-height: 1;
  flex: 1;
}

.game-title span {
  color: var(--accent);
}

.score-badge {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--accent);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 0.3rem 0.9rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.score-badge.dimmed {
  color: var(--text-muted);
  border-color: var(--border);
}

/* name entry */
.name-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 480px;
  margin: 4rem auto;
  text-align: center;
  animation: fadeUp 0.5s ease both;
}

.name-card h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.name-card p {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.input-row {
  display: flex;
  gap: 0.6rem;
}

input.text-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.65rem 1rem;
  outline: none;
  transition: border-color 0.2s;
}

input.text-input::placeholder {
  color: var(--text-muted);
}

input.text-input:focus {
  border-color: var(--accent);
}

button.btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: var(--radius);
  padding: 0.65rem 1.2rem;
  cursor: pointer;
  font-weight: 500;
  transition: opacity 0.15s, transform 0.1s;
  white-space: nowrap;
}

button.btn:hover {
  opacity: 0.85;
}

button.btn:active {
  transform: scale(0.97);
}

button.btn.danger {
  background: var(--accent2);
}

button.btn.ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

button.btn.ghost:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

/* hints list */
.hints-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.hint-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.4rem;
  animation: fadeUp 0.4s ease both;
  position: relative;
  overflow: hidden;
}

.hint-card.latest {
  border-color: var(--accent);
  background: var(--surface2);
}

.hint-card.latest::before {
  content: "NEW";
  position: absolute;
  top: 0.6rem;
  right: 0.8rem;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.hint-number {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.hint-text {
  font-size: 1rem;
  line-height: 1.55;
  margin-bottom: 0.5rem;
}

.hint-comment {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
}

.hint-comment::before {
  content: "💬 ";
}

/* guess row */
.guess-area {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  margin-bottom: 1rem;
}

.guess-area label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.wrong-msg {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent2);
  padding: 0.5rem 0;
  animation: shake 0.35s ease;
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-6px);
  }
  40% {
    transform: translateX(6px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(4px);
  }
}
/* outcome screens */
.outcome-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  animation: fadeUp 0.5s ease both;
  max-width: 500px;
  margin: 2rem auto;
}

.outcome-card.win {
  border: 2px solid var(--accent);
}

.outcome-card.lose {
  border: 2px solid var(--accent2);
}

.outcome-emoji {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.outcome-card h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.outcome-score {
  font-family: var(--font-display);
  font-size: 5rem;
  line-height: 1;
  margin: 1rem 0;
}

.outcome-score.win {
  color: var(--accent);
}

.outcome-score.lose {
  color: var(--accent2);
}

.outcome-sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.outcome-answer {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  background: rgba(232, 255, 71, 0.07);
  border: 1px solid rgba(232, 255, 71, 0.2);
  border-radius: var(--radius);
  padding: 0.5rem 1.5rem;
  display: inline-block;
  margin-bottom: 1.5rem;
}

.btn-row {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* progress bar */
.progress-bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  margin-bottom: 2rem;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.4s ease;
}

@media (max-width: 600px) {
  .page {
    padding: 2rem 1rem;
  }
  nav.navbar {
    padding: 0.8rem 1rem;
    gap: 1rem;
  }
  .input-row {
    flex-direction: column;
  }
  .hint-card.latest::before {
    display: none;
  }
}
.student-page {
  max-width: 760px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.quiz-upload {
  text-align: center;
}
.quiz-upload h2 {
  font-family: "Bebas Neue", sans-serif;
  font-size: 2.4rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}
.quiz-upload__hint {
  color: #888;
  margin-bottom: 1.5rem;
}
.quiz-upload__hint code {
  background: #1e1e1e;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "DM Mono", monospace;
}
.quiz-upload__dropzone {
  border: 2px dashed #4a90e2;
  border-radius: 12px;
  padding: 2.5rem 1rem;
  background: rgba(74, 144, 226, 0.04);
  transition: background 0.2s, border-color 0.2s;
}
.quiz-upload__dropzone p {
  margin: 0.3rem 0;
  color: #aaa;
}
.quiz-upload__dropzone--over {
  background: rgba(74, 144, 226, 0.14);
  border-color: #74b4ff;
}
.quiz-upload__dropzone--over p {
  color: #74b4ff;
  font-weight: 600;
}
.quiz-upload__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}
.quiz-upload__or {
  font-size: 0.8rem;
  color: #555 !important;
  margin: 0.6rem 0 !important;
}
.quiz-upload__btn {
  display: inline-block;
  margin-top: 0.4rem;
  padding: 0.5rem 1.4rem;
  background: #4a90e2;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-family: "DM Sans", sans-serif;
  font-size: 0.9rem;
  transition: background 0.15s;
  border: none;
}
.quiz-upload__btn:hover {
  background: #3378c8;
}
.quiz-upload__btn--small {
  margin-top: 0;
  padding: 0.4rem 1rem;
  font-size: 0.82rem;
}

.quiz-format {
  margin-top: 1.5rem;
  text-align: left;
  border: 1px solid #2a2a2a;
  border-radius: 8px;
  padding: 0.6rem 1rem;
}
.quiz-format summary {
  cursor: pointer;
  color: #888;
  font-family: "DM Mono", monospace;
  font-size: 0.85rem;
  user-select: none;
}
.quiz-format summary:hover {
  color: #aaa;
}
.quiz-format__code {
  margin-top: 0.8rem;
  background: #111;
  border-radius: 6px;
  padding: 0.8rem 1rem;
  font-family: "DM Mono", monospace;
  font-size: 0.78rem;
  color: #b5cea8;
  overflow-x: auto;
  white-space: pre;
}

.quiz-library__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}
.quiz-library__header h2 {
  font-family: "Bebas Neue", sans-serif;
  font-size: 2rem;
  letter-spacing: 0.04em;
  margin: 0;
}
.quiz-library__dropzone {
  position: relative;
  min-height: 4px;
  border-radius: 8px;
  transition: min-height 0.15s, background 0.15s;
  margin-bottom: 0.5rem;
}
.quiz-library__dropzone--over {
  min-height: 60px;
  background: rgba(74, 144, 226, 0.1);
  border: 2px dashed #4a90e2;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quiz-library__dropzone--over p {
  color: #74b4ff;
  font-weight: 600;
  margin: 0;
}
.quiz-library__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.quiz-card {
  background: #161616;
  border: 1px solid #2a2a2a;
  border-radius: 10px;
  padding: 1.1rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.15s, background 0.15s;
}
.quiz-card:hover {
  border-color: #4a90e2;
  background: #1a1f2a;
}
.quiz-card__count {
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  color: #555;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.quiz-card__title {
  font-family: "DM Sans", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ddd;
  margin: 0;
  flex: 1;
  line-height: 1.35;
}
.quiz-card__btn {
  margin-top: 0.4rem;
  padding: 0.45rem 0.9rem;
  background: #4a90e2;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: "DM Sans", sans-serif;
  font-size: 0.85rem;
  transition: background 0.15s;
  align-self: flex-start;
}
.quiz-card__btn:hover {
  background: #3378c8;
}

.quiz__topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.quiz__title {
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.7rem;
  letter-spacing: 0.04em;
  margin: 0 0 0.6rem;
}
.quiz__counter {
  font-family: "DM Mono", monospace;
  font-size: 0.88rem;
  color: #666;
}
.quiz__progress {
  height: 4px;
  background: #222;
  border-radius: 2px;
  margin-bottom: 1.4rem;
  overflow: hidden;
}
.quiz__progress-bar {
  height: 100%;
  background: #4a90e2;
  border-radius: 2px;
  transition: width 0.3s ease;
}
.quiz__question {
  font-size: 1.1rem;
  line-height: 1.55;
  margin-bottom: 1.1rem;
  font-family: "DM Sans", sans-serif;
  color: #eee;
}
.quiz__answers {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.quiz__answer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border: 1px solid #2e2e2e;
  border-radius: 8px;
  background: #161616;
  color: #ccc;
  font-family: "DM Sans", sans-serif;
  font-size: 0.92rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.quiz__answer:hover:not(:disabled) {
  background: #1e2a3a;
  border-color: #4a90e2;
  color: #fff;
}
.quiz__answer:disabled {
  cursor: default;
}
.quiz__answer--correct {
  background: #0d2e1a !important;
  border-color: #3cb371 !important;
  color: #6ee0a0 !important;
}
.quiz__answer--wrong {
  background: #2e0d0d !important;
  border-color: #c0392b !important;
  color: #e88 !important;
}
.quiz__answer--neutral {
  opacity: 0.45;
}
.quiz__answer-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6em;
  height: 1.6em;
  border-radius: 50%;
  background: #2a2a2a;
  font-family: "DM Mono", monospace;
  font-size: 0.78rem;
  flex-shrink: 0;
}
.quiz__feedback {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  background: #111;
  border: 1px solid #222;
}
.quiz__feedback--ok {
  color: #6ee0a0;
  font-weight: 600;
  margin: 0 0 0.4rem;
}
.quiz__feedback--fail {
  color: #e88;
  font-weight: 600;
  margin: 0 0 0.4rem;
}
.quiz__explanation {
  font-family: "DM Sans", sans-serif;
  font-size: 0.83rem;
  color: #888;
  line-height: 1.5;
  margin: 0.4rem 0 0.8rem;
  border-left: 2px solid #333;
  padding-left: 0.7rem;
}
.quiz__next-btn {
  margin-top: 0.6rem;
  padding: 0.5rem 1.2rem;
  background: #4a90e2;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: "DM Sans", sans-serif;
  font-size: 0.9rem;
  transition: background 0.15s;
}
.quiz__next-btn:hover {
  background: #3378c8;
}
.quiz__exit-btn {
  padding: 0.38rem 0.9rem;
  background: transparent;
  color: #666;
  border: 1px solid #333;
  border-radius: 6px;
  cursor: pointer;
  font-family: "DM Sans", sans-serif;
  font-size: 0.82rem;
  transition: color 0.15s, border-color 0.15s;
}
.quiz__exit-btn:hover {
  color: #aaa;
  border-color: #555;
}
.quiz__exit-btn--muted {
  margin-top: 0.5rem;
  font-size: 0.8rem;
}
.quiz__exit-btn--top {
  display: block;
  margin-bottom: 1rem;
}
.quiz__score {
  margin-top: 0.8rem;
  font-family: "DM Mono", monospace;
  font-size: 0.78rem;
  color: #444;
  text-align: right;
}

.quiz-result {
  text-align: center;
}
.quiz-result h2 {
  font-family: "Bebas Neue", sans-serif;
  font-size: 2rem;
  letter-spacing: 0.05em;
  color: #aaa;
  margin-bottom: 0.2rem;
}
.quiz-result__title {
  font-size: 1rem;
  color: #666;
  margin-bottom: 1.5rem;
  font-weight: 400;
}
.quiz-result__score {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
}
.quiz-result__num {
  font-family: "Bebas Neue", sans-serif;
  font-size: 3.5rem;
  color: #4a90e2;
  letter-spacing: 0.02em;
}
.quiz-result__pct {
  font-family: "DM Mono", monospace;
  font-size: 1.4rem;
  color: #666;
}
.quiz-result__grade {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}
.quiz-result__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.quiz-error {
  text-align: center;
  padding: 2rem;
}
.quiz-error__msg {
  color: #e88;
  font-family: "DM Mono", monospace;
  font-size: 0.85rem;
  background: #2e0d0d;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  text-align: left;
  word-break: break-word;
  margin-bottom: 1.2rem;
}