:root {
  --bg: #EEF0E9;
  --surface: #FFFFFF;
  --surface-2: #F5F6F1;
  --ink: #1B231E;
  --ink-muted: #5A655D;
  --line: #DADFD3;
  --accent: #1F6F5C;
  --accent-strong: #12463A;
  --accent-tint: #DCEBE4;
  --intensity: #B5461C;
  --intensity-tint: #F5E1D6;
  --rest: #9BA39B;
  --rest-tint: #ECEEE9;
  --danger: #B5461C;
  --danger-tint: #F5E1D6;
  --shadow: 0 1px 2px rgba(20, 30, 24, 0.04), 0 6px 20px rgba(20, 30, 24, 0.05);
  --font-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "Public Sans", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12160F;
    --surface: #1B221A;
    --surface-2: #202821;
    --ink: #ECEFE8;
    --ink-muted: #9AA69A;
    --line: #303A2F;
    --accent: #52BC9C;
    --accent-strong: #8CDBC0;
    --accent-tint: #1E332C;
    --intensity: #E68255;
    --intensity-tint: #3A2A20;
    --rest: #6E766E;
    --rest-tint: #232A22;
    --danger: #E68255;
    --danger-tint: #3A2A20;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}
:root[data-theme="dark"] {
  --bg: #12160F; --surface: #1B221A; --surface-2: #202821; --ink: #ECEFE8;
  --ink-muted: #9AA69A; --line: #303A2F; --accent: #52BC9C; --accent-strong: #8CDBC0;
  --accent-tint: #1E332C; --intensity: #E68255; --intensity-tint: #3A2A20;
  --rest: #6E766E; --rest-tint: #232A22; --danger: #E68255; --danger-tint: #3A2A20;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

html, body { background: var(--bg); }
body {
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  margin: 0;
}
a { color: var(--accent-strong); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Nav ---------- */
.nav { border-bottom: 1px solid var(--line); background: var(--surface); position: sticky; top: 0; z-index: 10; }
.nav-inner { max-width: 920px; margin: 0 auto; padding: 0.9rem 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand, .brand-title { font-family: var(--font-display); font-size: 1.5rem; color: var(--ink); text-decoration: none; letter-spacing: 0.01em; }
.brand span, .brand-title span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 1.3rem; font-size: 0.92rem; }
.nav-links a { color: var(--ink-muted); text-decoration: none; font-weight: 600; }
.nav-links a:hover { color: var(--ink); }
.logout-form { margin: 0; }
.logout-form button {
  font-family: var(--font-body); font-size: 0.92rem; font-weight: 600;
  background: none; border: none; color: var(--ink-muted); cursor: pointer; padding: 0;
}
.logout-form button:hover { color: var(--intensity); }

/* ---------- Layout ---------- */
.page { max-width: 920px; margin: 0 auto; padding: 2.25rem 1.25rem 5rem; display: flex; flex-direction: column; gap: 2.5rem; }

/* ---------- Login ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.login-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); padding: 2.25rem 2rem; max-width: 360px; width: 100%;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.login-sub { color: var(--ink-muted); margin: 0 0 0.5rem; font-size: 0.95rem; }
.login-form { display: flex; flex-direction: column; gap: 0.6rem; margin-top: 0.75rem; }
.login-form label { font-size: 0.8rem; font-weight: 600; color: var(--ink-muted); }
.login-form input {
  font-family: var(--font-mono); font-size: 1rem; padding: 0.65rem 0.8rem;
  border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); color: var(--ink);
}
.login-form button {
  margin-top: 0.4rem; font-family: var(--font-body); font-weight: 700; font-size: 0.95rem;
  padding: 0.7rem 1rem; border: none; border-radius: 8px; background: var(--accent); color: var(--surface);
  cursor: pointer;
}
.login-form button:hover { background: var(--accent-strong); }
.login-error {
  background: var(--danger-tint); color: var(--danger); border-radius: 8px;
  padding: 0.6rem 0.8rem; font-size: 0.88rem; font-weight: 600;
}

/* ---------- Hero ---------- */
.hero { display: flex; flex-direction: column; gap: 0.6rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.hero-eyebrow { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); font-weight: 600; }
.hero h1 { font-family: var(--font-display); font-size: clamp(2.6rem, 8vw, 4.4rem); line-height: 0.95; margin: 0; text-wrap: balance; }
.hero-sub { font-size: 1rem; color: var(--ink-muted); }

/* ---------- Section heading ---------- */
.section-head { display: flex; align-items: baseline; gap: 0.75rem; margin-bottom: 1rem; }
.section-head .num { font-family: var(--font-mono); font-size: 0.9rem; color: var(--accent); }
.section-head h2 { font-family: var(--font-display); font-size: 1.6rem; margin: 0; }
.section-note { color: var(--ink-muted); font-size: 0.95rem; }

/* ---------- Stat board ---------- */
.stat-board { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.stat { background: var(--surface); padding: 1.1rem 1.15rem; display: flex; flex-direction: column; gap: 0.3rem; }
.stat-label { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); font-weight: 600; }
.stat-value { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 1.5rem; font-weight: 600; color: var(--accent-strong); }
.stat-value small { font-size: 0.85rem; font-weight: 500; color: var(--ink-muted); margin-left: 0.15rem; }
.stat-hint { font-size: 0.78rem; color: var(--ink-muted); }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
table.activities { width: 100%; border-collapse: collapse; background: var(--surface); min-width: 420px; }
table.activities th, table.activities td { text-align: left; padding: 0.7rem 1rem; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
table.activities th { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-muted); background: var(--surface-2); font-weight: 600; }
table.activities tr:last-child td { border-bottom: none; }
table.activities td.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--accent-strong); }

/* ---------- Weeks ---------- */
.weeks { display: flex; flex-direction: column; gap: 1rem; }
.week { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; }
.week-current { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-tint), var(--shadow); }
.week-done { opacity: 0.6; }
.week-head { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.25rem; background: var(--surface-2); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.week-badge { font-family: var(--font-display); font-size: 1.9rem; color: var(--accent-strong); background: var(--accent-tint); border-radius: 8px; padding: 0.05rem 0.7rem; line-height: 1.3; flex-shrink: 0; }
.week-dates { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-muted); }
.week-phase { font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 700; color: var(--accent); margin-left: auto; }
.week-totals { display: flex; gap: 1.3rem; font-family: var(--font-mono); font-size: 0.86rem; flex-basis: 100%; }
.week-totals b { color: var(--accent-strong); font-variant-numeric: tabular-nums; }
.week-progress { flex-basis: 100%; display: flex; align-items: center; gap: 0.75rem; margin-top: 0.3rem; }
.progress-track { flex: 1; height: 6px; border-radius: 999px; background: var(--line); overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); }
.progress-label { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-muted); white-space: nowrap; }

.day-grid { display: grid; grid-template-columns: repeat(7, minmax(118px, 1fr)); overflow-x: auto; }
.day { padding: 0.85rem 0.9rem; border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 0.35rem; }
.day:last-child { border-right: none; }
.day-name { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); }
.day-tag { display: inline-flex; align-items: center; align-self: flex-start; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.03em; padding: 0.15rem 0.5rem; border-radius: 999px; }
.tag-rest { background: var(--rest-tint); color: var(--ink-muted); }
.tag-easy { background: var(--accent-tint); color: var(--accent-strong); }
.tag-quality { background: var(--intensity-tint); color: var(--intensity); }
.tag-long { background: var(--accent); color: var(--surface); }
.tag-race { background: var(--intensity); color: var(--surface); }
.day-detail { font-size: 0.8rem; color: var(--ink); line-height: 1.4; }
.day-detail .km { font-family: var(--font-mono); font-weight: 600; }

.race-week .week-head { background: var(--intensity-tint); }
.race-week .week-badge { background: var(--intensity); color: var(--surface); }
.race-week .week-phase { color: var(--intensity); }

/* ---------- Legend ---------- */
.legend { display: flex; flex-wrap: wrap; gap: 0.85rem 1.5rem; font-size: 0.84rem; color: var(--ink-muted); margin-bottom: 1.1rem; }
.legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.legend .swatch { width: 0.75rem; height: 0.75rem; border-radius: 3px; }

/* ---------- Mobile: stack the day grid instead of horizontal scroll ---------- */
@media (max-width: 640px) {
  .day-grid { grid-template-columns: 1fr; overflow-x: visible; }
  .day { border-right: none; border-bottom: 1px solid var(--line); flex-direction: row; align-items: baseline; flex-wrap: wrap; gap: 0.5rem 0.7rem; }
  .day:last-child { border-bottom: none; }
  .day-name { width: 2.4rem; flex-shrink: 0; }
  .day-detail { flex-basis: 100%; }
  .week-phase { margin-left: 0; }
  .nav-links { gap: 0.9rem; font-size: 0.85rem; }
}