/* funguru — one design system for the blog and the instruments.
   Light by default, dark via prefers-color-scheme. Chart colours are exposed
   as CSS variables (--c-*) so the SVG charts (rendered in JS) read the live
   theme and re-render when the OS theme changes. */

:root {
  --font-serif: Georgia, "Iowan Old Style", "Noto Serif", serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --bg: #fbfaf7;
  --panel: #ffffff;
  --field: #f4f2ec;
  --ink: #1c1c1a;
  --muted: #6b6b66;
  --line: #e4e2dc;
  --accent: #1f7a6b;
  --ok: #1f8a52;
  --warn: #b9791b;

  --max: 44em;
  --max-wide: 1040px;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(40,40,30,.08);

  /* chart palette (light) */
  --c-carb: #1f9e8f; --c-protein: #6c5cd6; --c-fat: #c8801a; --c-alcohol: #cf3f78;
  --c-whole: #1f9e8f; --c-gng: #c8801a; --c-min: #6c5cd6;
  --c-grid: #e4e2dc; --c-chart-ink: #1c1c1a; --c-chart-muted: #6b6b66; --c-dot-stroke: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1020;
    --panel: #1b1e3c;
    --field: #0d0e1d;
    --ink: #f4f5ff;
    --muted: #a6a9c8;
    --line: #2c2f55;
    --accent: #4fd1bd;
    --ok: #58e08a;
    --warn: #ffb13f;
    --shadow: 0 8px 30px rgba(0,0,0,.35);

    --c-carb: #4ad7d4; --c-protein: #9b8cff; --c-fat: #ffb13f; --c-alcohol: #ff5d8f;
    --c-whole: #4ad7d4; --c-gng: #ffb13f; --c-min: #9b8cff;
    --c-grid: #2c2f55; --c-chart-ink: #f4f5ff; --c-chart-muted: #a6a9c8; --c-dot-stroke: #0f1020;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--font-ui); font-size: 1.06rem; line-height: 1.7;
  color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased;
}
.nowrap { white-space: nowrap; }

/* ===================== SHARED CHROME ===================== */
.masthead {
  text-align: center; padding: 2.6rem 1.5rem 1.2rem; border-bottom: 1px solid var(--line);
}
.site-title {
  font-family: var(--font-serif); font-size: 2.2rem; font-weight: 700;
  color: var(--ink); text-decoration: none; letter-spacing: -0.01em;
}
.tagline { color: var(--muted); font-style: italic; margin-top: 0.2rem; }
nav { margin-top: 1.1rem; display: flex; gap: 1.3rem; justify-content: center; flex-wrap: wrap; }
nav a {
  color: var(--accent); text-decoration: none; font-size: 0.86rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
}
nav a:hover { text-decoration: underline; }
footer {
  max-width: var(--max-wide); margin: 0 auto; padding: 2rem 1.5rem;
  border-top: 1px solid var(--line); text-align: center; color: var(--muted); font-size: 0.85rem;
}
footer a { color: var(--accent); text-decoration: none; }

/* ===================== BLOG ===================== */
main { max-width: var(--max); margin: 0 auto; padding: 2.4rem 1.5rem 3.5rem; }
.post-list { display: flex; flex-direction: column; gap: 1.8rem; }
.post-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem 1.7rem; box-shadow: var(--shadow); }
.post-card h2 { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 700; line-height: 1.25; }
.post-card h2 a { color: var(--ink); text-decoration: none; }
.post-card h2 a:hover { color: var(--accent); }
.post-date { color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; margin: 0.4rem 0 0.8rem; }
.post-excerpt { font-family: var(--font-serif); }
.read-more { display: inline-block; margin-top: 0.8rem; color: var(--accent); font-size: 0.9rem; font-weight: 600; text-decoration: none; }
.read-more:hover { text-decoration: underline; }
.post h1, .page h1 { font-family: var(--font-serif); font-size: 2.1rem; font-weight: 700; line-height: 1.2; margin-bottom: 0.3rem; }
.post .post-date { margin-bottom: 1.5rem; }
.page h1 { margin-bottom: 1.3rem; }
.content { font-family: var(--font-serif); }
.content > * + * { margin-top: 1.1rem; }
.content h2 { font-size: 1.5rem; margin-top: 2rem; }
.content h3 { font-size: 1.25rem; margin-top: 1.6rem; }
.content a { color: var(--accent); }
.content ul, .content ol { padding-left: 1.5rem; }
.content li { margin-top: 0.4rem; }
.content blockquote { border-left: 3px solid var(--accent); padding-left: 1.2rem; color: var(--muted); font-style: italic; }
.content img { max-width: 100%; height: auto; border-radius: 8px; }
.content code { background: var(--field); border: 1px solid var(--line); border-radius: 5px; padding: 0.1em 0.4em; font-size: 0.9em; }

/* ===================== INSTRUMENT: shared wrappers ===================== */
.wrap { max-width: var(--max-wide); margin: 0 auto; padding: 8px 20px 80px; }
.page-intro { max-width: var(--max-wide); margin: 1.5rem auto 0; padding: 0 20px; }
.page-intro h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); margin-bottom: 8px; }
.page-intro .sub { color: var(--muted); max-width: 720px; font-size: 1.02rem; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; margin: 18px 0; box-shadow: var(--shadow); }
.grid-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-inputs .panel { margin: 0; }
@media (max-width: 760px) { .grid-inputs { grid-template-columns: 1fr; } }
h2 { font-size: 1.15rem; margin: 0 0 14px; display: flex; align-items: center; gap: 12px; }
h3 { font-size: .98rem; margin: 0 0 10px; }

.field { margin: 14px 0; display: grid; grid-template-columns: 1fr; gap: 8px; }
.field .label { font-weight: 600; }
.unit { color: var(--muted); font-weight: 400; font-size: .9em; }
.field input[type="range"] { width: 100%; accent-color: var(--accent); }
.field input[type="number"], .b-field input, .opt-grid select, .menu-qty,
.routine input, .routine select {
  background: var(--field); border: 1px solid var(--line); color: var(--ink);
  border-radius: 9px; padding: 8px 10px; font-size: 1rem;
}
.field input[type="number"] { width: 104px; }
.field:has(input[type="range"]) { grid-template-columns: 1fr auto; grid-template-areas: "label label" "range num"; align-items: center; }
.field:has(input[type="range"]) .label { grid-area: label; }
.field:has(input[type="range"]) input[type="range"] { grid-area: range; }
.field:has(input[type="range"]) input[type="number"] { grid-area: num; }

.sex-field { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.seg { background: var(--field); border: 1px solid var(--line); padding: 8px 14px; border-radius: 9px; cursor: pointer; }
.seg:has(input:checked) { border-color: var(--accent); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 30%, transparent) inset; }
.seg input { accent-color: var(--accent); margin-right: 4px; }

.readouts { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.readout { flex: 1 1 150px; background: var(--field); border: 1px dashed var(--line); border-radius: 11px; padding: 11px 13px; }
.readout span { display: block; color: var(--muted); font-size: .8rem; }
.readout strong { font-size: 1.35rem; }
.readout-val.surplus { color: var(--warn); }
.readout-val.deficit { color: var(--ok); }
.readout-val.met { color: var(--ok); }
.readout-val.short { color: var(--warn); }

.hint, .macro-note { color: var(--muted); font-size: .92rem; }
.hint { margin: -6px 0 12px; }
.chip { font-size: .78rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); border: 1px solid color-mix(in srgb, var(--ok) 45%, transparent); }
.chip.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); }

table.routine { width: 100%; border-collapse: collapse; }
.routine th { text-align: left; font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 4px 6px; }
.routine td { padding: 4px 6px; }
.routine input, .routine select { border-radius: 8px; padding: 7px 8px; font-size: .9rem; width: 100%; }
.routine .r-hours, .routine .r-met { width: 72px; }
.routine .r-remove { background: transparent; border: none; color: var(--muted); cursor: pointer; font-size: 1rem; padding: 4px 6px; border-radius: 8px; }
.routine .r-remove:hover { color: var(--warn); background: color-mix(in srgb, var(--warn) 12%, transparent); }

.routine-actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.btn { background: var(--accent); color: #fff; border: none; padding: 9px 15px; border-radius: 9px; font-weight: 700; cursor: pointer; font-size: .92rem; }
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border: 1px solid var(--line); color: var(--muted); }
.btn.ghost:hover { color: var(--ink); border-color: var(--accent); }

/* tabs */
.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin: 26px 0 18px; border-bottom: 1px solid var(--line); }
.tab-btn { background: transparent; border: none; color: var(--muted); font-size: 0.98rem; font-weight: 600; cursor: pointer; padding: 10px 16px; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.macro-note { margin: 0 0 16px; padding: 10px 14px; border-left: 3px solid var(--line); background: var(--field); border-radius: 8px; }

/* result cards */
.results { margin: 28px 0 8px; }
.truth-banner { background: color-mix(in srgb, var(--warn) 12%, transparent); border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent); border-left: 4px solid var(--warn); border-radius: 12px; padding: 13px 17px; margin: 0 0 18px; font-size: .94rem; }
.truth-banner strong { color: var(--warn); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.card { border-radius: var(--radius); padding: 18px 20px; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); }
.card-tag { font-size: .8rem; font-weight: 700; color: var(--muted); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.card .big { font-size: clamp(1.8rem, 4.5vw, 2.4rem); font-weight: 800; margin: 6px 0 2px; }
.card .sub { color: var(--muted); font-weight: 600; }
.card .note { font-size: .85rem; color: var(--muted); margin: 10px 0 0; }
.card.whole .big { color: var(--c-whole); }
.card.minimum .big { color: var(--c-min); }
.card.gng { border-color: color-mix(in srgb, var(--warn) 50%, var(--line)); }
.card.gng .big { color: var(--c-gng); }
.card.fat-card .big { color: var(--c-fat); }
.flag { font-size: .64rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: #1a1200; background: var(--warn); padding: 2px 7px; border-radius: 999px; }

/* charts */
.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 22px 0; }
@media (max-width: 760px) { .charts { grid-template-columns: 1fr; } }
.chart-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.chart { width: 100%; }
.chart svg { width: 100%; height: auto; display: block; }
.cap { color: var(--muted); font-size: .82rem; margin: 8px 0 0; }

/* custom builder */
.builder-mode { margin-bottom: 16px; }
.builder-pane { display: none; }
.builder-pane.active { display: block; }
.builder-inputs { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 16px; }
.b-field { display: flex; flex-direction: column; gap: 5px; font-weight: 600; }
.b-field small { color: var(--muted); font-weight: 400; }
.b-field input { width: 110px; }

/* calculate optimum */
.optimum { border: 1px solid var(--accent); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 22px; background: var(--panel); box-shadow: var(--shadow); }
.optimum h3 { color: var(--accent); margin-bottom: 6px; }
.opt-intro { color: var(--muted); font-size: 0.9rem; margin: 0 0 14px; }
.opt-grid { display: flex; gap: 14px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.opt-grid select { min-width: 130px; font-size: 0.95rem; }
.opt-check { display: flex; align-items: center; gap: 6px; font-weight: 600; padding-bottom: 8px; }
.opt-check input { accent-color: var(--accent); }
.opt-if-window { display: none; }
.opt-if-window.show { display: flex; }
.opt-conflicts:not(:empty) { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.conflict { padding: 9px 13px; border-radius: 9px; font-size: 0.9rem; }
.conflict.block { background: color-mix(in srgb, #dd3322 14%, transparent); border: 1px solid color-mix(in srgb, #dd3322 50%, transparent); color: #c0392b; }
.conflict.warn { background: color-mix(in srgb, var(--warn) 14%, transparent); border: 1px solid color-mix(in srgb, var(--warn) 50%, transparent); color: var(--warn); }
.opt-rationale:not(:empty) { margin-top: 14px; padding: 14px 16px; border-left: 3px solid var(--accent); background: var(--field); border-radius: 8px; font-size: 0.92rem; }
.opt-rationale p { margin: 0 0 8px; }
.opt-rationale p:last-child { margin-bottom: 0; }
.opt-caveat { color: var(--muted); font-style: italic; }

/* menu */
.menu-list { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 20px; margin-bottom: 16px; }
@media (max-width: 560px) { .menu-list { grid-template-columns: 1fr; } }
.menu-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--line); margin: 0; }
.menu-name { font-size: 0.94rem; }
.menu-name small { color: var(--muted); }
.menu-qty { width: 62px; padding: 6px 8px; font-size: 0.92rem; }
.quip-wrap { position: relative; display: inline-block; }
.quip-trigger { width: 17px; height: 17px; border-radius: 50%; border: 1px solid var(--muted); background: transparent; color: var(--muted); font-size: 11px; line-height: 1; cursor: help; padding: 0; margin-left: 5px; vertical-align: middle; }
.quip-trigger:hover, .quip-trigger:focus { color: var(--accent); border-color: var(--accent); outline: none; }
.quip { display: none; position: absolute; left: -4px; bottom: 150%; z-index: 30; width: 232px; background: var(--panel); color: var(--ink); border: 1px solid var(--accent); border-radius: 12px; padding: 10px 13px; font-size: 0.84rem; line-height: 1.5; font-weight: 400; text-align: left; box-shadow: var(--shadow); }
.quip::after { content: ""; position: absolute; top: 100%; left: 14px; border: 7px solid transparent; border-top-color: var(--accent); }
.quip-trigger:hover + .quip, .quip-trigger:focus + .quip { display: block; }

/* science */
.science { margin: 24px 0; background: var(--field); border: 1px solid var(--line); border-radius: var(--radius); padding: 2px 20px; }
.science summary { cursor: pointer; padding: 15px 0; font-weight: 700; color: var(--accent); list-style: none; }
.science summary::-webkit-details-marker { display: none; }
.science summary::before { content: "▸ "; }
.science[open] summary::before { content: "▾ "; }
.science-body { padding-bottom: 16px; color: var(--muted); }
.science-body p { margin: 10px 0; }
.science-body code { background: var(--panel); padding: 2px 6px; border-radius: 6px; color: var(--ink); font-size: .9em; }
.science-body .caveat { border-left: 3px solid var(--warn); padding-left: 14px; }

.foot { text-align: center; color: var(--muted); font-size: .84rem; margin-top: 36px; }

@media (max-width: 600px) {
  body { font-size: 1rem; }
  main { padding: 1.8rem 1.1rem 3rem; }
  .site-title { font-size: 1.9rem; }
}
@media (max-width: 560px) {
  .routine .r-name { min-width: 84px; }
  .field input[type="number"] { width: 84px; }
}