:root {
  --bg: #f5f3ff;
  --card-bg: #ffffff;
  --ink: #1f1147;
  --muted: #6b6489;
  --primary: #6d28d9;
  --primary-dark: #5b21b6;
  --success: #15803d;
  --success-bg: #dcfce7;
  --danger: #b91c1c;
  --danger-bg: #fee2e2;
  --border: #e5e0f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--primary);
  color: white;
}

.brand {
  color: white;
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.hello { opacity: 0.9; font-size: 0.9rem; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 1px 2px rgba(31, 17, 71, 0.04);
}

.auth-card { max-width: 420px; margin: 40px auto; }

h1 { margin-top: 0; }

label {
  display: block;
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: var(--muted);
}

input[type="text"], input[type="email"], input[type="password"], select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--ink);
  background: white;
}

.btn {
  display: inline-block;
  background: var(--primary);
  color: white;
  border: none;
  padding: 10px 18px;
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-large { padding: 14px 24px; font-size: 1.1rem; }
.btn-small { padding: 6px 12px; font-size: 0.85rem; }

.btn-secondary {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}
.btn-secondary:hover { background: var(--danger-bg); }

.link-button {
  background: none;
  border: none;
  color: white;
  text-decoration: underline;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0;
}

.inline-form { display: inline; }

.error {
  background: var(--danger-bg);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
}

.info {
  background: var(--success-bg);
  color: var(--success);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
}

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.dashboard-header h1 { margin: 0; }

.duel-section { margin-bottom: 28px; }
.duel-section h2 { font-size: 1.05rem; margin-bottom: 10px; }

.duel-list { list-style: none; padding: 0; margin: 0; }

.duel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 8px;
}

.duel-row a { color: var(--ink); text-decoration: none; }
.duel-row a:hover { text-decoration: underline; }
.duel-row.action { border-color: var(--primary); }

.letter {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 1px 8px;
  border-radius: 6px;
  font-weight: 700;
}

.letter.big { font-size: 1.1rem; }

.badge {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-action { background: #fef3c7; color: #92400e; }
.badge-waiting { background: #e0e7ff; color: #3730a3; }
.badge-win { background: var(--success-bg); color: var(--success); }
.badge-loss { background: var(--danger-bg); color: var(--danger); }

.back-link {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--primary);
  text-decoration: none;
  font-size: 0.9rem;
}

.duel-card .duel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.duel-meta { color: var(--muted); }

.turn-panel {
  background: #faf9ff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.timer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.timer {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.attempts { color: var(--muted); font-size: 0.9rem; }

.button-row { display: flex; gap: 10px; align-items: center; }

.feedback { min-height: 1.2em; font-size: 0.9rem; }
.feedback-error { color: var(--danger); }

.result-banner {
  padding: 18px 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.result-win { background: var(--success-bg); color: var(--success); }
.result-loss { background: var(--danger-bg); color: var(--danger); }
.result-banner h2 { margin: 0 0 6px; }
.result-banner p { margin: 0; }

.answer-timeline {
  padding-left: 20px;
}

.answer-timeline li { margin-bottom: 6px; }