:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --muted: #6b7280;
  --accent: #4f46e5;
  --error: #dc2626;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

h1 { font-size: 1.5rem; margin-bottom: 4px; }

.muted { color: var(--muted); font-size: 0.85rem; margin-top: 0; }

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.card.highlight {
  border: 2px solid var(--accent);
}

.stat-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.stat-value { font-size: 2rem; font-weight: 600; }
.stat-sub { color: var(--muted); }

.error {
  background: #fee2e2;
  color: var(--error);
  padding: 12px;
  border-radius: 8px;
}

@media (min-width: 700px) {
  main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .card.highlight, .card.full-width { grid-column: 1 / -1; }
  h1, .muted, .error { grid-column: 1 / -1; }
}

.workout-item {
  padding: 12px 0;
  border-bottom: 1px solid #eee;
}

.workout-item:last-child {
  border-bottom: none;
}

.workout-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}

.workout-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--muted);
}

.workout-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.workout-content {
  flex: 1;
  min-width: 0;
}

.workout-thumb {
  height: 60px;
  width: 60px;
  object-fit: cover;
  object-position: top;
  border-radius: 6px;
  flex-shrink: 0;
}

.advice-toggle {
  margin-top: 8px;
  padding: 4px 10px;
  font-size: 0.85rem;
  color: var(--accent);
  background: none;
  border: 1px solid var(--accent);
  border-radius: 6px;
  cursor: pointer;
}

.advice-toggle:hover {
  background: var(--accent);
  color: white;
}

.advice-text {
  margin-top: 8px;
  padding: 10px;
  background: var(--bg);
  border-radius: 8px;
  font-size: 0.9rem;
  line-height: 1.5;
  white-space: pre-wrap;
}