:root {
  --ink: #12191a;
  --paper: #f3f6f5;
  --paper-raised: #ffffff;
  --slate: #57676a;
  --teal: #0b7d6e;
  --teal-soft: #0b7d6e1a;
  --clay: #b8542a;
  --clay-soft: #b8542a1a;
  --line: rgba(18, 25, 26, 0.13);
  --line-strong: rgba(18, 25, 26, 0.22);
  --good: #2f9e58;
  --warn: #c98a1c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e7efed;
    --paper: #0c1313;
    --paper-raised: #131c1c;
    --slate: #93a3a2;
    --teal: #2fc0aa;
    --teal-soft: #2fc0aa22;
    --clay: #e08a55;
    --clay-soft: #e08a5522;
    --line: rgba(231, 239, 237, 0.13);
    --line-strong: rgba(231, 239, 237, 0.24);
    --good: #49b877;
    --warn: #d9a03e;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
.mono { font-family: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace; }

h1, h2 {
  font-family: ui-serif, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
h1 { font-size: 1.9rem; }
h2 { font-size: 1.3rem; }
.muted { color: var(--slate); }

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 28px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: ui-serif, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark {
  display: block;
  border-radius: 22%;
  flex-shrink: 0;
}
.today { color: var(--slate); font-size: 13px; }
.header-right { display: flex; align-items: center; gap: 18px; }
.header-nav { display: flex; align-items: center; gap: 14px; }
.header-nav a { color: var(--slate); font-size: 13px; text-decoration: none; }
.header-nav a:hover { color: var(--teal); }
.logout-form { margin: 0; }
.link-button {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate);
  cursor: pointer;
}
.link-button:hover { border-color: transparent; color: var(--teal); }

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 32px 28px 96px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

section { display: flex; flex-direction: column; gap: 14px; }

.tag {
  display: inline-block;
  font-family: ui-monospace, monospace;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 5px;
  margin-right: 6px;
}
.tag-race { color: var(--clay); background: var(--clay-soft); }
.tag-general { color: var(--teal); background: var(--teal-soft); }
.goal-line { font-size: 15px; }

.mode-switch { display: flex; gap: 8px; margin-top: 4px; }
.mode-tab {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--slate);
}
.mode-tab.is-current {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}
.mode-tab:hover { border-color: var(--teal); color: var(--teal); }
.mode-tab.is-current:hover { color: var(--paper); }

.race-form {
  display: none;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
  padding: 16px 18px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  max-width: 420px;
}
.race-form.is-open { display: flex; }
.race-form-row { display: flex; gap: 10px; }
.race-form-row input[type="text"],
.race-form-row input[type="date"] {
  flex: 1;
  min-width: 0;
  font-family: inherit;
  font-size: 13.5px;
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
}
.race-form-row label {
  flex: 1;
  font-size: 12px;
  color: var(--slate);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.race-form-row input[type="number"] {
  font-family: ui-monospace, monospace;
  font-size: 13.5px;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
  width: 100%;
}
.race-form button[type="submit"] { align-self: flex-start; }

.metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.stat-tile {
  background: var(--paper-raised);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-label {
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 700;
}
.stat-value {
  font-family: ui-monospace, monospace;
  font-size: 1.4rem;
  font-variant-numeric: tabular-nums;
}
.stat-unit { font-size: 0.6em; color: var(--slate); margin-left: 3px; }
.stat-asof { display: block; font-size: 11px; color: var(--slate); margin-top: 2px; }
.stat-asof.is-stale { color: var(--warn); }
.badge-warn {
  display: inline-block;
  font-size: 11px;
  font-family: -apple-system, sans-serif;
  background: var(--warn);
  color: #1a1305;
  padding: 1px 7px;
  border-radius: 100px;
  margin-left: 6px;
  vertical-align: middle;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.section-header h2 { margin: 0; flex: 0 0 auto; }
.plan-range { color: var(--slate); font-size: 13px; }
.generate-form { margin-left: auto; }
.phase-badge {
  font-family: ui-monospace, monospace;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 5px;
  color: var(--teal);
  background: var(--teal-soft);
}

button {
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
}
button:hover { border-color: var(--teal); color: var(--teal); }

.plan-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.plan-row {
  background: var(--paper-raised);
  padding: 14px 16px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.plan-row.is-complete { opacity: 0.55; }
.plan-row-date {
  flex: 0 0 44px;
  text-align: center;
  padding-top: 2px;
}
.plan-row-day { display: block; font-size: 10.5px; text-transform: uppercase; color: var(--slate); letter-spacing: 0.04em; }
.plan-row-daynum { display: block; font-family: ui-monospace, monospace; font-size: 1.1rem; font-weight: 600; }
.plan-row-body { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.plan-row-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.plan-row-type { font-weight: 600; font-size: 14px; text-transform: capitalize; }
.plan-row-duration, .plan-row-intensity { font-size: 12px; color: var(--slate); }
.plan-row-desc { margin: 0; font-size: 13px; color: var(--slate); }

.discipline-tag {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  color: var(--ink);
  background: var(--line);
}
.discipline-swim { color: #0b6fa8; background: #0b6fa81a; }
.discipline-bike { color: var(--teal); background: var(--teal-soft); }
.discipline-run { color: var(--clay); background: var(--clay-soft); }
.discipline-strength { color: #7a4fb0; background: #7a4fb01a; }
.discipline-other { color: var(--slate); background: var(--line); }

.status-pill {
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 100px;
  white-space: nowrap;
}
.status-pending { color: var(--slate); }
.status-completed { color: var(--good); border-color: var(--good); }
.status-skipped, .status-modified { color: var(--warn); border-color: var(--warn); }

.streak-block {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.streak-hero { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.streak-number {
  font-family: ui-serif, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--clay);
  line-height: 1;
}
.streak-label { font-size: 14px; color: var(--slate); font-weight: 600; }
.streak-empty { font-size: 15px; }
.streak-sub { margin: 0; font-size: 13px; color: var(--slate); }
.activity-strip { display: flex; gap: 5px; margin-top: 2px; }
.activity-dot {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: transparent;
  border: 1px solid var(--line-strong);
}
.activity-dot.is-active { background: var(--clay); border-color: var(--clay); }

.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; padding: 4px 18px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 700;
  padding: 12px 14px 10px 0;
  border-bottom: 1px solid var(--line-strong);
}
td { padding: 10px 14px 10px 0; border-bottom: 1px solid var(--line); }

.login-card {
  max-width: 340px;
  margin: 64px auto 0;
  padding: 28px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--slate);
}
.login-form input {
  font-family: inherit;
  font-size: 15px;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
}
.login-form input:focus { outline: 2px solid var(--teal); outline-offset: -1px; }
.login-form button { margin-top: 4px; align-self: flex-start; }
.login-error {
  margin: 0;
  padding: 9px 12px;
  border-radius: 8px;
  background: var(--clay-soft);
  color: var(--clay);
  font-size: 13.5px;
}
tr:last-child td { border-bottom: none; }

.member-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
}
.member-form { max-width: 340px; }