:root {
  color-scheme: light dark;
  --bg: #0f1115;
  --card: #171a21;
  --border: #2a2e37;
  --text: #e6e8ec;
  --muted: #9aa1ac;
  --accent: #6ea8fe;
  --danger: #ff6b6b;
  --good: #4ade80;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", sans-serif;
}

.wrap {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px;
}

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.login-card {
  width: 100%;
  max-width: 360px;
}

h1 {
  font-size: 1.4rem;
  margin: 0 0 4px;
}

p.sub {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 0.9rem;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 6px;
}

input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 16px;
  background: #0f1115;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
}

input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  padding: 10px 12px;
  background: var(--accent);
  color: #0f1115;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}

button.full {
  width: 100%;
}

button:hover {
  opacity: 0.9;
}

.error {
  color: var(--danger);
  font-size: 0.85rem;
  margin: -8px 0 16px;
  min-height: 1em;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.logout-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 14px;
  font-weight: 400;
}

.stats-row {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
  font-variant-numeric: tabular-nums;
}

.stat {
  text-align: center;
}

.stat .value {
  font-size: 1.8rem;
  font-weight: 700;
}

.stat .label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.prompt-box {
  background: #0f1115;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  font-size: 1.2rem;
  line-height: 1.9;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  user-select: none;
}

.char-correct {
  color: var(--good);
}

.char-wrong {
  color: var(--danger);
  text-decoration: underline;
}

.char-current {
  background: var(--accent);
  color: #0f1115;
  border-radius: 2px;
}

.char-pending {
  color: var(--muted);
}

textarea#input-area {
  width: 100%;
  min-height: 80px;
  padding: 12px;
  background: #0f1115;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1.1rem;
  resize: none;
}

.result-box {
  display: none;
  margin-top: 20px;
  padding: 20px;
  border-radius: 10px;
  background: #0f1115;
  border: 1px solid var(--accent);
}

.leaderboard {
  margin-top: 32px;
}

.leaderboard h2 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td.best {
  color: var(--text);
}