/* dua.css — Đua Thú (premium stadium UI) */
:root {
  --bg:      #06060d;
  --surface: #12121e;
  --border:  rgba(255,255,255,0.08);
  --text:    #e8e8f0;
  --muted:   #8888aa;
  --radius:  14px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Be Vietnam Pro', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  display: flex; flex-direction: column; align-items: center;
  overflow-x: hidden;
}

/* ── Header ─────────────────────────────────────────────────────── */
.site-header {
  width: 100%; padding: 14px 20px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border); flex-shrink: 0;
  position: relative; z-index: 5;
}
.logo-link {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--text);
  font-weight: 700; font-size: 15px;
}
.logo-link img { width: 26px; height: 26px; }

.page-wrap { width: 100%; max-width: 540px; padding: 0 16px 120px; flex: 1; }
.hidden { display: none !important; }

#confetti-canvas {
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 999; display: none;
}

/* ══════════════════════════════════════════════════════════════════
   SETUP
══════════════════════════════════════════════════════════════════ */
#setup-phase { padding-top: 28px; }
.module-title {
  font-size: clamp(26px,7vw,34px); font-weight: 900;
  text-align: center; letter-spacing: -1px; margin-bottom: 6px;
}
.module-sub { text-align: center; color: var(--muted); font-size: 14px; margin-bottom: 20px; }
#sel-count  { text-align: center; font-size: 13px; color: var(--muted); margin-bottom: 14px; }

#animal-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 10px; margin-bottom: 20px;
}
.animal-pick {
  background: var(--surface); border: 2px solid var(--border);
  border-radius: 12px; padding: 12px 6px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  transition: border-color .15s, transform .1s, background .15s;
  font-family: inherit;
}
.animal-pick:hover  { border-color: var(--ac, #fff); }
.animal-pick:active { transform: scale(.93); }
.animal-pick.chosen {
  border-color: var(--ac);
  background: color-mix(in srgb, var(--ac) 14%, transparent);
  box-shadow: 0 0 14px color-mix(in srgb, var(--ac) 22%, transparent);
}
.pick-emoji  { font-size: 30px; line-height: 1; }
.pick-label  { font-size: 11px; font-weight: 700; color: var(--muted); }
.animal-pick.chosen .pick-label { color: var(--ac); }

#name-inputs { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.name-row {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--rc, #fff) 30%, var(--border));
  border-radius: 10px; padding: 10px 14px;
}
.name-emoji { font-size: 22px; }
.name-input {
  flex: 1; background: transparent; border: none; outline: none;
  font-size: 14px; font-family: inherit; color: var(--text);
}
.name-input::placeholder { color: var(--muted); }

#start-btn {
  width: 100%;
  background: linear-gradient(135deg, #f97316, #f59e0b);
  color: #fff; border: none; border-radius: 14px; padding: 16px;
  font-size: 17px; font-weight: 800; cursor: pointer; font-family: inherit;
  transition: opacity .2s, transform .1s; letter-spacing: -.3px;
  box-shadow: 0 8px 24px rgba(249,115,22,.3);
}
#start-btn:disabled              { opacity: .3; cursor: not-allowed; box-shadow: none; }
#start-btn:not(:disabled):hover  { opacity: .92; }
#start-btn:not(:disabled):active { transform: scale(.98); }

/* ══════════════════════════════════════════════════════════════════
   RACE — stadium
══════════════════════════════════════════════════════════════════ */
#race-phase {
  padding-top: 20px;
  position: relative;
}
/* stadium spotlight backdrop */
#race-phase::before {
  content: '';
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(249,115,22,.10), transparent 60%),
    radial-gradient(ellipse 60% 40% at 15% 30%, rgba(56,189,248,.06), transparent 60%),
    radial-gradient(ellipse 60% 40% at 85% 60%, rgba(244,114,182,.06), transparent 60%);
  pointer-events: none;
}

/* HUD */
.race-hud {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  border: 1px solid var(--border);
  border-radius: 14px; padding: 12px 16px;
}
.race-status {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 800; letter-spacing: .5px;
  color: #ef4444;
}
.live-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: #ef4444; box-shadow: 0 0 0 0 rgba(239,68,68,.6);
  animation: livePulse 1.2s ease-in-out infinite;
}
@keyframes livePulse {
  0%   { box-shadow: 0 0 0 0 rgba(239,68,68,.6); }
  70%  { box-shadow: 0 0 0 8px rgba(239,68,68,0); }
  100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); }
}
.race-timer {
  font-variant-numeric: tabular-nums;
  font-size: 18px; font-weight: 900;
  color: #facc15;
  text-shadow: 0 0 12px rgba(250,204,21,.4);
  letter-spacing: -.5px;
}

/* Countdown overlay */
#countdown {
  display: none; position: fixed; inset: 0; z-index: 50;
  align-items: center; justify-content: center; flex-direction: column;
  background: radial-gradient(circle at center, rgba(6,6,13,.6), rgba(6,6,13,.9));
  pointer-events: none;
}
.cd-text {
  font-size: 100px; font-weight: 900;
  color: var(--cd-color, #fff);
  text-shadow: 0 0 60px color-mix(in srgb, var(--cd-color, #fff) 70%, transparent),
               0 4px 20px rgba(0,0,0,.8);
  line-height: 1;
}
#countdown.pop .cd-text { animation: cdPop .4s cubic-bezier(.34,1.8,.5,1) both; }
@keyframes cdPop {
  0%   { transform: scale(.2) rotate(-12deg); opacity: 0; }
  60%  { transform: scale(1.12) rotate(3deg); }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}

/* ── Track ──────────────────────────────────────────────────────── */
#track { display: flex; flex-direction: column; gap: 12px; }

.lane {
  display: flex; align-items: stretch; gap: 10px;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--lc) 9%, var(--surface)),
    var(--surface));
  border: 1.5px solid color-mix(in srgb, var(--lc) 45%, transparent);
  border-radius: 14px; padding: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,.3),
              inset 0 0 20px color-mix(in srgb, var(--lc) 5%, transparent);
}

/* rank badge */
.rank-badge {
  flex-shrink: 0;
  width: 34px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 900;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  transition: background .3s, color .3s, transform .3s;
}
.rank-badge.rank-1 {
  background: linear-gradient(135deg,#fde047,#f59e0b);
  color: #1a1a00; border-color: #fbbf24;
  box-shadow: 0 0 14px rgba(250,204,21,.5);
  transform: scale(1.05);
}
.rank-badge.rank-2 {
  background: linear-gradient(135deg,#e5e7eb,#9ca3af);
  color: #1a1a1a; border-color: #d1d5db;
}
.rank-badge.rank-3 {
  background: linear-gradient(135deg,#d97706,#92400e);
  color: #fff; border-color: #b45309;
}

.lane-body { flex: 1; min-width: 0; }
.lane-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.lane-name {
  font-size: 13px; font-weight: 800; color: var(--lc);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  text-shadow: 0 0 10px color-mix(in srgb, var(--lc) 40%, transparent);
}
.lane-pct {
  font-size: 12px; font-weight: 700; color: var(--muted);
  font-variant-numeric: tabular-nums; flex-shrink: 0; margin-left: 8px;
}

/* Road */
.road {
  position: relative; height: 54px;
  background:
    linear-gradient(90deg, rgba(0,0,0,.25), transparent 12%),
    rgba(255,255,255,.025);
  border-radius: 10px; overflow: hidden;
  border: 1px solid rgba(255,255,255,.06);
}
/* moving lane lines (track texture) */
.road-lines {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent 0, transparent 26px,
    rgba(255,255,255,.06) 26px, rgba(255,255,255,.06) 30px
  );
  opacity: .6;
}
/* finish zone */
.finish-line {
  position: absolute; right: 34px; top: 0; bottom: 0; width: 8px;
  background:
    repeating-linear-gradient(45deg,
      rgba(255,255,255,.5) 0, rgba(255,255,255,.5) 4px,
      rgba(0,0,0,.4) 4px, rgba(0,0,0,.4) 8px);
  opacity: .5;
}
.finish-flag {
  position: absolute; right: 4px; top: 50%;
  transform: translateY(-50%); font-size: 22px; line-height: 1;
  pointer-events: none;
  filter: drop-shadow(0 0 6px rgba(255,255,255,.4));
  animation: flagWave 1.2s ease-in-out infinite;
}
@keyframes flagWave {
  0%,100% { transform: translateY(-50%) rotate(-4deg); }
  50%     { transform: translateY(-50%) rotate(4deg); }
}

/* Racer */
.racer {
  position: absolute; top: 50%; left: 0;
  transform: translateY(-50%); z-index: 3;
  width: 50px; text-align: center;
  transition: left .06s linear;
}
.racer-emoji {
  font-size: 32px; line-height: 1; display: block;
  position: relative; z-index: 2;
}
/* speed trail */
.racer-trail {
  position: absolute; right: 60%; top: 50%;
  transform: translateY(-50%);
  width: 24px; height: 6px; border-radius: 3px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--lc) 60%, transparent));
  opacity: 0; z-index: 1;
}

/* running: gallop + trail */
.racer.running .racer-emoji {
  animation: gallop .2s ease-in-out infinite alternate;
}
.racer.running .racer-trail { animation: trailFlick .2s ease-out infinite; }
@keyframes gallop {
  from { transform: translateY(0) scaleX(1) rotate(-2deg); }
  to   { transform: translateY(-8px) scaleX(1.08) rotate(2deg); }
}
@keyframes trailFlick {
  0%   { opacity: .7; width: 28px; }
  100% { opacity: 0;  width: 12px; }
}

/* stumble */
.racer.stumbling .racer-emoji { animation: wobble .12s ease-in-out infinite alternate; }
@keyframes wobble {
  from { transform: rotate(-20deg) scale(.85) translateY(2px); }
  to   { transform: rotate(20deg)  scale(.85) translateY(2px); }
}

/* done */
.racer.done .racer-emoji {
  animation: winBounce .4s ease infinite alternate;
  filter: drop-shadow(0 0 10px var(--lc));
}
@keyframes winBounce {
  from { transform: translateY(0) scale(1); }
  to   { transform: translateY(-11px) scale(1.22); }
}

/* ══════════════════════════════════════════════════════════════════
   RESULT
══════════════════════════════════════════════════════════════════ */
#result-phase { padding-top: 28px; }

.winner-box {
  position: relative; overflow: hidden;
  background: color-mix(in srgb, var(--wc) 10%, var(--surface));
  border: 2px solid var(--wc); border-radius: 22px;
  padding: 30px 20px; text-align: center; margin-bottom: 18px;
  box-shadow: 0 0 50px color-mix(in srgb, var(--wc) 25%, transparent);
  animation: winnerIn .55s cubic-bezier(.34,1.56,.64,1) both;
}
@keyframes winnerIn {
  from { transform: scale(.7); opacity: 0; }
  to   { transform: scale(1);  opacity: 1; }
}
/* rotating light rays behind winner */
.winner-rays {
  position: absolute; top: 50%; left: 50%;
  width: 300%; height: 300%;
  transform: translate(-50%,-50%);
  background: repeating-conic-gradient(
    from 0deg,
    color-mix(in srgb, var(--wc) 12%, transparent) 0deg 12deg,
    transparent 12deg 24deg);
  animation: raySpin 8s linear infinite;
  z-index: 0; opacity: .5;
}
@keyframes raySpin { to { transform: translate(-50%,-50%) rotate(360deg); } }
.winner-emoji, .winner-crown, .winner-name, .winner-sub { position: relative; z-index: 1; }
.winner-emoji { font-size: 72px; line-height: 1; }
.winner-crown {
  font-size: 30px; margin-top: -14px; margin-bottom: 4px;
  animation: crownBob 1s ease-in-out infinite alternate;
}
@keyframes crownBob {
  from { transform: rotate(-7deg); }
  to   { transform: translateY(-5px) rotate(7deg); }
}
.winner-name { font-size: 28px; font-weight: 900; color: var(--wc); }
.winner-sub  { font-size: 13px; font-weight: 700; color: var(--muted); margin-top: 6px; letter-spacing: .3px; }

.podium-list {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 18px;
}
.podium-row {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px; border-bottom: 1px solid var(--border);
  font-size: 15px; position: relative;
}
.podium-row::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--pc);
}
.podium-row:last-child { border-bottom: none; }
.podium-row.p-winner   { background: color-mix(in srgb, var(--pc) 8%, transparent); }
.p-medal { font-size: 20px; width: 30px; text-align: center; flex-shrink: 0; font-weight: 800; }
.p-emoji { font-size: 24px; }
.p-name  { font-weight: 700; }

.result-actions { display: flex; flex-direction: column; gap: 10px; }
.btn-primary {
  background: linear-gradient(135deg,#f97316,#f59e0b);
  color: #fff; border: none; border-radius: 12px; padding: 15px;
  font-size: 15px; font-weight: 700; cursor: pointer;
  font-family: inherit; width: 100%; transition: opacity .2s;
  box-shadow: 0 8px 24px rgba(249,115,22,.25);
}
.btn-primary:hover { opacity: .9; }
.btn-secondary {
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 12px; padding: 14px;
  font-size: 14px; font-weight: 600; cursor: pointer;
  font-family: inherit; width: 100%; transition: border-color .2s, color .2s;
}
.btn-secondary:hover { border-color: #f97316; color: var(--text); }

/* ── Footer / Dock ───────────────────────────────────────────────── */
.footer {
  width: 100%; text-align: center; padding: 20px;
  font-size: 12px; color: var(--muted); border-top: 1px solid var(--border);
}
.footer a { color: var(--muted); text-decoration: none; }

.floating-dock {
  position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 4px;
  background: rgba(18,18,30,.92); backdrop-filter: blur(16px);
  border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 12px; z-index: 100;
}
.dock-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  text-decoration: none; color: var(--muted);
  padding: 6px 10px; border-radius: 999px;
  transition: color .2s, background .2s; font-size: 11px;
}
.dock-item i { font-size: 20px; }
.dock-item:hover, .dock-item.active { color: var(--text); background: rgba(255,255,255,.06); }
.dock-item.active { color: #f97316; }
.dock-divider { width: 1px; height: 24px; background: var(--border); margin: 0 4px; }
.dock-label { display: none; }
@media (min-width: 400px) { .dock-label { display: block; } }