:root {
  --bg: #0a0a10;
  --panel: #131218;
  --panel-2: #191822;
  --border: rgba(255, 255, 255, 0.13);
  --text: #f7f6fb;
  --muted: rgba(247, 246, 251, 0.62);
  --accent: #34d399;
  --accent-2: #ff5a68;
  --good: #4ade80;
  --radius: 18px;

  --font-display: 'Bricolage Grotesque', 'Inter', sans-serif;
  --font-label: 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px;
  padding-bottom: 56px;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '⚡';
  position: fixed;
  right: -6vw;
  bottom: -8vw;
  font-size: 42vw;
  line-height: 1;
  opacity: 0.03;
  pointer-events: none;
  z-index: 0;
  filter: grayscale(1);
}

#app {
  width: 100%;
  max-width: 480px;
  position: relative;
  z-index: 1;
}

.screen {
  display: none;
  flex-direction: column;
  align-items: stretch;
  gap: 16px;
  animation: fadeIn .3s ease;
}

.screen.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes badgePop {
  0% { opacity: 0; transform: scale(0.85); }
  100% { opacity: 1; transform: scale(1); }
}

h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-style: normal;
  font-size: 1.9rem;
  margin: 0 0 4px;
  text-align: center;
  letter-spacing: 0.2px;
}

.back-link {
  display: inline-block;
  font-family: var(--font-label);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  font-size: 0.78rem;
  text-decoration: none;
  margin-bottom: 4px;
}

.back-link:hover {
  color: var(--text);
}

h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  margin: 0 0 4px;
  text-align: center;
}

.subtitle, .hint {
  color: var(--muted);
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.45;
  margin: 0;
}

.hint a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.field {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-family: var(--font-label);
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
}

input[type="text"], input[type="number"] {
  background: var(--panel-2);
  border: 2px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 1.1rem;
  width: 100%;
  font-family: var(--font-body);
}

input[type="text"]:focus, input[type="number"]:focus {
  outline: 2px solid var(--accent);
}

.primary-btn, .secondary-btn {
  border: none;
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .1s ease, opacity .15s ease, box-shadow .15s ease;
  letter-spacing: 0.2px;
  font-family: var(--font-body);
}

.primary-btn {
  background: var(--accent);
  color: #06231a;
  box-shadow: 0 8px 24px rgba(52, 211, 153, 0.22);
}

.primary-btn:hover {
  box-shadow: 0 8px 28px rgba(52, 211, 153, 0.36);
}

.secondary-btn {
  background: var(--panel-2);
  color: var(--text);
  border: 2px solid var(--border);
}

.primary-btn:active, .secondary-btn:active {
  transform: scale(0.97);
}

.primary-btn:disabled, .secondary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.error {
  color: var(--accent-2);
  text-align: center;
  font-size: 0.9rem;
  margin: 0;
}

.hidden {
  display: none !important;
}

#joinCode {
  text-transform: uppercase;
  letter-spacing: 3px;
  text-align: center;
  font-weight: 700;
}

.avatar-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.avatar-btn {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: var(--panel-2);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .15s ease;
  padding: 0;
}

.avatar-btn.active {
  background: var(--accent);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(52, 211, 153, 0.35);
}

.avatar-btn:active {
  transform: scale(0.92);
}

.divider {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  margin: 4px 0;
}

.link-toggle {
  text-align: center;
  color: var(--accent);
  font-size: 0.85rem;
  margin: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.link-toggle:active {
  opacity: 0.7;
}

/* Room code */
.room-code-box {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}

.room-code-label {
  font-family: var(--font-label);
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-weight: 600;
}

.room-code {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: 6px;
  color: var(--accent);
}

.copy-link-btn {
  margin-top: 8px;
  padding: 8px 16px;
  font-size: 0.82rem;
  width: auto;
}

/* Player chips */
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.player-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--panel-2);
  border: 2px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
}

.player-chip .host-tag {
  font-size: 0.7rem;
  color: var(--accent);
}

.player-chip.disconnected {
  opacity: 0.5;
}

.player-chip .score-value {
  color: var(--good);
  font-weight: 700;
}

.player-chip.medal-1 {
  border-color: #ffd166;
  box-shadow: 0 0 0 2px rgba(255, 209, 102, 0.25);
}

.player-chip.medal-2 {
  border-color: #cfd8e3;
  box-shadow: 0 0 0 2px rgba(207, 216, 227, 0.2);
}

.player-chip.medal-3 {
  border-color: #d99a63;
  box-shadow: 0 0 0 2px rgba(217, 154, 99, 0.2);
}

/* Letter badge */
.letter-badge-wrap {
  display: flex;
  justify-content: center;
}

.letter-badge {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: var(--panel);
  border: 2px solid var(--accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 4rem;
  animation: badgePop .3s cubic-bezier(.2, .8, .3, 1.2);
}

/* Timer */
.timer-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.timer-ring {
  --progress: 1;
  --ring-color: var(--accent);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: conic-gradient(var(--ring-color) calc(var(--progress) * 360deg), var(--panel-2) 0deg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-image 0.4s linear;
}

.timer-ring.warning {
  --ring-color: var(--accent-2);
}

.timer-ring-inner {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--panel);
  display: flex;
  align-items: center;
  justify-content: center;
}

.timer-display {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
}

.timer-display.warning {
  color: var(--accent-2);
}

/* Answers form */
.answers-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.answer-field {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.answer-field label {
  font-family: var(--font-label);
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
}

/* Results */
.results-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.category-result-block {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.category-result-title {
  font-family: var(--font-label);
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
}

.result-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
  border-top: 2px solid var(--panel-2);
}

.result-entry:first-of-type {
  border-top: none;
}

.result-entry-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  min-width: 0;
}

.result-entry-name .rn-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-entry-answer {
  flex: 1;
  text-align: right;
  font-weight: 600;
  font-size: 0.95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-entry.invalid .result-entry-answer {
  color: var(--muted);
  text-decoration: line-through;
  font-weight: 500;
}

.points-badge {
  flex-shrink: 0;
  min-width: 26px;
  text-align: center;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--panel-2);
  color: var(--muted);
}

.points-badge.pts-2 {
  background: var(--accent);
  color: #06231a;
}

.points-badge.pts-1 {
  background: rgba(52, 211, 153, 0.25);
  color: var(--good);
}

/* Credit badge */
.credit {
  position: fixed;
  bottom: 14px;
  right: 14px;
  background: var(--panel);
  border: 2px solid var(--border);
  padding: 6px 14px;
  border-radius: 999px;
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  z-index: 50;
  pointer-events: none;
  white-space: nowrap;
}

.credit b {
  color: var(--accent);
  font-weight: 700;
}

@media (max-width: 380px) {
  .timer-ring { width: 100px; height: 100px; }
  .timer-ring-inner { width: 80px; height: 80px; }
  .timer-display { font-size: 1.4rem; }
  .room-code { font-size: 2rem; letter-spacing: 4px; }
  .letter-badge { width: 110px; height: 110px; font-size: 3.2rem; }
}