:root {
  /* Fonts */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-ui: "Plus Jakarta Sans", system-ui, -apple-system, Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", "Menlo", monospace;

  /* Dark theme (default) — chumbo quente, anti-fadiga ocular */
  --bg: #111215;
  --bg-alt: #22252c;
  --panel: #191b20;
  --border: #2d313b;
  --overlay: rgba(17, 18, 21, 0.82);

  --brand: #eb3349;
  --brand-hover: #c92438;
  --accent: #ffc043;
  --accent-hover: #e0a100;

  --text: #edefef;
  --text-dim: #8e95a5;
  --muted: #494f5d;

  --untyped: #494f5d;
  --correct: #edefef;
  --error-text: #ff5252;
  --error-bg: rgba(255, 82, 82, 0.14);
  --caret: #ffc043;

  --gold: #ffc043;
  --silver: #cbd5e1;
  --bronze: #d97706;
  --ready: #10b981;
  --waiting: #ffc043;

  /* Back-compat aliases used across the app */
  --accent-2: var(--gold);
  --good: var(--ready);
  --bad: var(--error-text);
  --radius: 12px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.18);

  font-size: 16px;
}

:root[data-theme="light"] {
  /* Papel editorial / hardware claro */
  --bg: #efece6;
  --bg-alt: #e2ddd5;
  --panel: #f8f6f0;
  --border: #c8c2b7;
  --overlay: rgba(239, 236, 230, 0.82);

  --brand: #d62828;
  --brand-hover: #b80322;
  --accent: #d48806;
  --accent-hover: #b45309;

  --text: #1a1c20;
  --text-dim: #5c6270;
  --muted: #9da3b0;

  --untyped: #9da3b8;
  --correct: #1a1c20;
  --error-text: #d62828;
  --error-bg: rgba(214, 40, 40, 0.12);
  --caret: #d62828;

  --gold: #d48806;
  --silver: #64748b;
  --bronze: #b45309;
  --ready: #059669;
  --waiting: #d97706;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-weight: 500;
  min-height: 100vh;
  transition: background-color 0.2s, color 0.2s;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0 30px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--text);
}
.brand .flag { color: var(--brand); }
.brand .brand-hi { color: var(--brand); }

nav {
  display: flex;
  align-items: center;
}

nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  text-decoration: none;
  margin-left: 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
nav a:hover { color: var(--text); }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-left: 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text-dim);
  cursor: pointer;
}
.theme-toggle:hover { color: var(--text); border-color: var(--brand); }
.theme-toggle .icon { width: 16px; height: 16px; }

.icon {
  width: 1.1em;
  height: 1.1em;
  stroke-width: 2.2;
  flex-shrink: 0;
}
.icon-lg { width: 1.6rem; height: 1.6rem; }
h1 .icon, h2 .icon { vertical-align: -0.15em; margin-right: 4px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-card);
}

h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.75rem;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}
.hero-title {
  font-size: 2.25rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}
p.sub { color: var(--text-dim); margin: 0 0 24px; }

.caption {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-dim);
}

label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin: 16px 0 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s;
}
input[type="text"]:focus { border-color: var(--accent); }
input[type="text"]::placeholder { color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s, filter 0.15s, background-color 0.15s;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--brand); color: #ffffff; }
.btn-primary:hover:not(:disabled) { background: var(--brand-hover); }
.btn-secondary { background: var(--bg-alt); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover:not(:disabled) { border-color: var(--brand); }
.btn-block { width: 100%; margin-top: 18px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.action-card {
  display: flex;
  flex-direction: column;
}
.action-card .btn-block { margin-top: auto; }

.input-group {
  display: flex;
  gap: 8px;
  margin-top: auto;
}
.input-group input[type="text"] { flex: 1; min-width: 0; }
.input-group .btn { flex-shrink: 0; padding-left: 16px; padding-right: 16px; }

.divider {
  display: flex;
  align-items: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  margin: 4px 0;
}

.error-box {
  background: var(--error-bg);
  border: 1px solid var(--bad);
  color: var(--error-text);
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-top: 14px;
  display: none;
}
.error-box.show { display: block; }

code.room-code {
  background: var(--bg-alt);
  border: 1px dashed var(--border);
  padding: 3px 10px;
  border-radius: 6px;
  letter-spacing: 2px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold);
}

/* ---- Room / Race ---- */

.room-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.room-code-display {
  font-size: 0.95rem;
  color: var(--text-dim);
}

.track {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 26px;
}

.lane {
  position: relative;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  height: 54px;
  overflow: hidden;
  transition: border-color 0.15s;
}
.lane.me { border-color: var(--accent); }

.lane::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: repeating-linear-gradient(
    45deg, #444 0 4px, #111 4px 8px
  );
  opacity: 0.7;
}

.lane .car {
  position: absolute;
  top: 50%;
  transform: translate(0, -50%);
  left: 0;
  font-size: 1.7rem;
  transition: left 0.18s linear;
  filter: drop-shadow(0 2px 3px rgba(0,0,0,0.5));
}

.lane .car.finished { filter: drop-shadow(0 0 6px var(--good)); }

.lane .label {
  position: absolute;
  left: 8px;
  top: 4px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 2;
}
.lane .label .dot {
  width: 8px; height: 8px; border-radius: 50%;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 8px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: #fff;
}
.badge-pill.ready { background: var(--ready); }
.badge-pill.waiting { background: var(--waiting); color: #1a1300; }

.lane .badge {
  position: absolute;
  right: 8px;
  bottom: 4px;
  font-size: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-feature-settings: "tnum", "zero";
  color: var(--text-dim);
}

.countdown-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  backdrop-filter: blur(3px);
}
.countdown-overlay.show { display: flex; }
.countdown-num {
  font-family: var(--font-display);
  font-size: 9rem;
  font-weight: 700;
  animation: pop 0.5s ease;
}
.countdown-num.c-red {
  color: var(--error-text);
  text-shadow: 0 0 40px color-mix(in srgb, var(--error-text) 60%, transparent);
}
.countdown-num.c-yellow {
  color: var(--gold);
  text-shadow: 0 0 40px color-mix(in srgb, var(--gold) 60%, transparent);
}
.countdown-num.c-green {
  color: var(--ready);
  text-shadow: 0 0 40px color-mix(in srgb, var(--ready) 60%, transparent);
}
@keyframes pop {
  from { transform: scale(0.4); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.text-panel {
  position: relative;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0;
  margin-bottom: 16px;
  user-select: none;
  white-space: normal;
  overflow-wrap: break-word;
  word-break: break-word;
  max-width: 100%;
}
.text-panel.blurred { filter: blur(7px); user-select: none; }

.text-panel .ch { position: relative; color: var(--untyped); transition: color 0.1s ease; }
.text-panel .ch.correct { color: var(--correct); }
.text-panel .ch.wrong { color: var(--error-text); background: var(--error-bg); border-radius: 2px; }

.caret {
  position: absolute;
  top: 0;
  left: 0;
  width: 2.5px;
  background: var(--caret);
  transition: transform 0.08s cubic-bezier(0.2, 0, 0, 1);
  pointer-events: none;
  opacity: 0;
}
.caret.show { opacity: 1; }

.typing-input {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  border-radius: 8px;
  border: 2px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  outline: none;
}
.typing-input:focus { border-color: var(--accent); }
.typing-input:disabled { opacity: 0.5; }

.stats-row {
  display: flex;
  gap: 24px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.stat {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 18px;
  min-width: 100px;
}
.stat .val {
  font-family: var(--font-display);
  font-feature-settings: "tnum", "zero";
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
}
.stat .lbl { font-family: var(--font-display); font-size: 0.7rem; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 4px; }
.stat:first-child .val { color: var(--accent); }

.results-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.results-list li {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.results-list li:last-child { border-bottom: none; }
.pos-badge {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-feature-settings: "tnum", "zero";
  font-weight: 700;
  border: 1px solid var(--border);
}
.pos-badge.gold { background: var(--gold); border-color: var(--gold); color: #1a1300; }
.pos-badge.silver { background: var(--silver); border-color: var(--silver); color: #1a1c20; }
.pos-badge.bronze { background: var(--bronze); border-color: var(--bronze); color: #1a1300; }
.results-name { flex: 1; font-weight: 700; }
.results-meta { color: var(--text-dim); font-size: 0.85rem; font-family: var(--font-display); font-weight: 600; font-feature-settings: "tnum", "zero"; }

table.leaderboard {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
}
table.leaderboard th, table.leaderboard td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  font-feature-settings: "tnum", "zero";
}
table.leaderboard thead { background: var(--bg-alt); }
table.leaderboard th { color: var(--text-dim); font-family: var(--font-display); font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
table.leaderboard tbody tr:hover td { background: var(--bg-alt); }

.empty-msg { color: var(--text-dim); padding: 20px; text-align: center; }

.copy-hint { display: inline-flex; align-items: center; gap: 5px; font-size: 0.8rem; color: var(--text-dim); cursor: pointer; }
.copy-hint:hover { color: var(--accent); }