/* ============================================================
   Drew's Bodybuilding Program — stylesheet
   Light + dark themes; palette per validated dataviz reference
   ============================================================ */

:root {
  --surface-1: #fcfcfb;
  --page: #f9f9f7;
  --ink-1: #0b0b0b;
  --ink-2: #52514e;
  --ink-muted: #898781;
  --hairline: #e1e0d9;
  --border: rgba(11, 11, 11, 0.10);
  --accent: #2a78d6;        /* categorical slot 1 — blue */
  --accent-2: #eb6834;      /* slot 2 — orange */
  --accent-3: #1baf7a;      /* slot 3 — aqua */
  --good: #006300;
  --warn-bg: #fff7e8;
  --card-shadow: 0 1px 2px rgba(11,11,11,0.04), 0 4px 16px rgba(11,11,11,0.05);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    --surface-1: #1a1a19;
    --page: #0d0d0d;
    --ink-1: #ffffff;
    --ink-2: #c3c2b7;
    --ink-muted: #898781;
    --hairline: #2c2c2a;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
    --accent-2: #d95926;
    --accent-3: #199e70;
    --good: #0ca30c;
    --warn-bg: #2a2312;
    --card-shadow: 0 1px 2px rgba(0,0,0,0.3), 0 4px 16px rgba(0,0,0,0.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --surface-1: #1a1a19;
  --page: #0d0d0d;
  --ink-1: #ffffff;
  --ink-2: #c3c2b7;
  --ink-muted: #898781;
  --hairline: #2c2c2a;
  --border: rgba(255, 255, 255, 0.10);
  --accent: #3987e5;
  --accent-2: #d95926;
  --accent-3: #199e70;
  --good: #0ca30c;
  --warn-bg: #2a2312;
  --card-shadow: 0 1px 2px rgba(0,0,0,0.3), 0 4px 16px rgba(0,0,0,0.25);
  color-scheme: dark;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--page);
  color: var(--ink-1);
  line-height: 1.6;
  font-size: 16px;
}

/* ---------- Top nav ---------- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--page) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.topnav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  height: 56px;
}
.brand {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--ink-1);
  text-decoration: none;
}
.brand .bolt { color: var(--accent-2); }
.nav-links {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 8px;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--ink-1); background: color-mix(in srgb, var(--ink-1) 6%, transparent); }
.nav-links a.active { color: var(--accent); }
.theme-toggle {
  margin-left: auto;
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--ink-2);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
}

/* ---------- Layout ---------- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

section.block { padding: 56px 0 8px; }
section.block > .wrap > .kicker {
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 6px;
}
section.block h2 {
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 18px;
}
section.block h3 {
  font-size: 20px;
  font-weight: 750;
  letter-spacing: -0.01em;
  margin: 34px 0 10px;
}
section.block h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 22px 0 8px;
}
p { color: var(--ink-2); margin-bottom: 12px; max-width: 76ch; }
p strong, li strong { color: var(--ink-1); }
ul, ol { margin: 0 0 14px 22px; color: var(--ink-2); }
li { margin-bottom: 6px; }
li::marker { color: var(--ink-muted); }

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 40px;
  border-bottom: 1px solid var(--hairline);
}
.hero .eyebrow {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 12px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 850;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 16px;
}
.hero .lede {
  font-size: 18px;
  max-width: 62ch;
  color: var(--ink-2);
}
.hero .meta-line {
  margin-top: 18px;
  font-size: 13px;
  color: var(--ink-muted);
}

/* ---------- Stat tiles ---------- */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 28px 0 8px;
}
.tile {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: var(--card-shadow);
}
.tile .label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tile .swatch {
  width: 9px; height: 9px; border-radius: 3px; display: inline-block;
}
.tile .value {
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-1);
  line-height: 1.15;
}
.tile .sub { font-size: 12.5px; color: var(--ink-2); margin-top: 2px; }

/* ---------- Macro bar (single stacked bar) ---------- */
.macro-bar-wrap { margin: 18px 0 6px; }
.macro-bar {
  display: flex;
  height: 26px;
  border-radius: 6px;
  overflow: hidden;
  gap: 2px;
  background: var(--page);
}
.macro-bar .seg { height: 100%; }
.macro-bar .seg.p { background: var(--accent); }
.macro-bar .seg.c { background: var(--accent-2); }
.macro-bar .seg.f { background: var(--accent-3); }
.macro-bar-labels {
  display: flex;
  gap: 18px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-2);
  flex-wrap: wrap;
}
.macro-bar-labels .lab { display: flex; align-items: center; gap: 6px; }
.macro-bar-labels .swatch { width: 10px; height: 10px; border-radius: 3px; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px;
  margin: 18px 0;
  box-shadow: var(--card-shadow);
}
.card > h3:first-child, .card > h4:first-child { margin-top: 0; }
.card .day-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: 6px;
  padding: 3px 9px;
  margin-bottom: 8px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  margin: 16px 0;
}
.card-grid .card { margin: 0; }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; margin: 14px 0 20px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-1); }
table { border-collapse: collapse; width: 100%; font-size: 14px; min-width: 560px; }
table:has(th:nth-child(6)) { min-width: 860px; }
table:has(th:nth-child(6)) td:last-child { min-width: 260px; color: var(--ink-muted); font-size: 13.5px; font-weight: 400; }
thead th {
  text-align: left;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 11px 14px;
  border-bottom: 1px solid var(--hairline);
  white-space: nowrap;
}
tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-2);
  vertical-align: top;
}
tbody tr:last-child td { border-bottom: none; }
tbody td:first-child { color: var(--ink-1); font-weight: 600; }
td.num, th.num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---------- Callouts ---------- */
.callout {
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, var(--surface-1));
  border-radius: 0 12px 12px 0;
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 14.5px;
  color: var(--ink-2);
}
.callout.coach { border-left-color: var(--accent-2); background: color-mix(in srgb, var(--accent-2) 7%, var(--surface-1)); }
.callout.holistic { border-left-color: var(--accent-3); background: color-mix(in srgb, var(--accent-3) 7%, var(--surface-1)); }
.callout .who {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
  color: var(--ink-1);
}
.callout p:last-child { margin-bottom: 0; }

/* ---------- Divider between major parts ---------- */
.part-divider {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 48px 0 0;
}

/* ---------- Footer ---------- */
footer {
  margin-top: 72px;
  border-top: 1px solid var(--hairline);
  padding: 28px 0 48px;
  font-size: 13px;
  color: var(--ink-muted);
}

/* ---------- Print ---------- */
@media print {
  .topnav, .theme-toggle { display: none; }
  body { background: #fff; }
  .card, .table-scroll { box-shadow: none; break-inside: avoid; }
  section.block { padding: 24px 0 0; }
}

@media (max-width: 640px) {
  .hero { padding: 48px 0 32px; }
  section.block { padding: 40px 0 4px; }
  .card { padding: 18px; }
}