/* ===========================================================================
   NutriCore - site stylesheet

   The palette is the application's own (src/app/globals.css): the same jade,
   the same amber for carbohydrate, the same violet for fat. The marketing site
   sits on a warmer paper and leans on hairline rules, a serif display face and
   a monospace label voice, so it reads as documentation about a tool rather
   than as a product brochure.

   Layout is one 12-column grid, defined once. No colour is ever defined only
   inside a media query, so a forced theme cannot fall through to an undefined
   token.
   =========================================================================== */

:root {
  color-scheme: light;

  --paper: #f7f6f2;
  --paper-2: #f1efe8;
  --surface: #ffffff;
  --surface-2: #fbfaf7;
  --ink: #12190f;
  --ink-2: #3d4a40;
  --ink-3: #6d7a70;

  --jade: #1f6b48;
  --jade-deep: #123f2b;
  --jade-hover: #185639;
  --jade-soft: #dcf0e5;
  --jade-text: #134f33;
  --on-jade: #ffffff;

  --carb: #a2661f;
  --carb-soft: #f7ecd9;
  --fat: #6b53a1;
  --fat-soft: #ece6f8;
  --info: #234668;
  --info-soft: #eaf1f9;

  --rule: #dfddd4;
  --rule-strong: #c8c5b9;
  --focus: #0b63c5;

  --shadow-sm: 0 1px 2px rgba(18, 25, 15, 0.04), 0 6px 18px -8px rgba(18, 25, 15, 0.14);
  --shadow-lg: 0 2px 4px rgba(18, 25, 15, 0.04), 0 28px 60px -34px rgba(18, 25, 15, 0.34);

  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 22px;

  --shell: 1220px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* One grain layer, reused. Cheap, and it stops large flat fields looking
     like a screenshot of a colour picker. */
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.32'/%3E%3C/svg%3E");
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #0b100d;
    --paper-2: #0f1512;
    --surface: #141b16;
    --surface-2: #1a231d;
    --ink: #e9f2ec;
    --ink-2: #b3c1b8;
    --ink-3: #8b9a90;
    --jade: #5cc490;
    --jade-deep: #0f1f17;
    --jade-hover: #7ad4a7;
    --jade-soft: #17301f;
    --jade-text: #a7e6c5;
    --on-jade: #08150e;
    --carb: #e0aa63;
    --carb-soft: #33280f;
    --fat: #b19ce4;
    --fat-soft: #241d38;
    --info: #b7d5f2;
    --info-soft: #16283a;
    --rule: #26312a;
    --rule-strong: #38473d;
    --focus: #7fb6ff;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 30px 70px -40px rgba(0, 0, 0, 0.9);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0b100d;
  --paper-2: #0f1512;
  --surface: #141b16;
  --surface-2: #1a231d;
  --ink: #e9f2ec;
  --ink-2: #b3c1b8;
  --ink-3: #8b9a90;
  --jade: #5cc490;
  --jade-deep: #0f1f17;
  --jade-hover: #7ad4a7;
  --jade-soft: #17301f;
  --jade-text: #a7e6c5;
  --on-jade: #08150e;
  --carb: #e0aa63;
  --carb-soft: #33280f;
  --fat: #b19ce4;
  --fat-soft: #241d38;
  --info: #b7d5f2;
  --info-soft: #16283a;
  --rule: #26312a;
  --rule-strong: #38473d;
  --focus: #7fb6ff;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 30px 70px -40px rgba(0, 0, 0, 0.9);
}

*, *::before, *::after { box-sizing: border-box; }

/* Several components set an explicit `display`, which would otherwise win over
   the user-agent rule for [hidden] and leave a "hidden" element on screen. */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 96px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--jade);
  color: var(--on-jade);
  padding: 0.7rem 1.1rem;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip:focus { left: 0; }

/* --- Typography ---------------------------------------------------------- */

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.021em; line-height: 1.08; margin: 0; }

.display {
  font-size: clamp(2.85rem, 6.4vw, 5.05rem);
  line-height: 0.99;
  letter-spacing: -0.033em;
}
.display em { font-style: italic; color: var(--jade); }

.h2 { font-size: clamp(1.95rem, 3.4vw, 3rem); line-height: 1.04; }
.h3 { font-size: clamp(1.35rem, 2vw, 1.72rem); line-height: 1.16; }
.h4 { font-size: 1.11rem; line-height: 1.3; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.685rem;
  font-weight: 500;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 1.15rem;
}
.eyebrow::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: var(--rule-strong);
}
.eyebrow.plain::before { display: none; }

.lede {
  font-size: clamp(1.06rem, 1.5vw, 1.24rem);
  line-height: 1.58;
  color: var(--ink-2);
  max-width: 60ch;
  margin: 0;
}

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.prose { color: var(--ink-2); max-width: 66ch; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--jade-text); text-underline-offset: 3px; }

code, kbd, samp, pre { font-family: var(--mono); font-size: 0.875em; }

code:not(pre code) {
  background: var(--surface-2);
  border: 1px solid var(--rule);
  border-radius: 5px;
  padding: 0.1em 0.36em;
  color: var(--jade-text);
  white-space: nowrap;
}

.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* --- Shell and grid ------------------------------------------------------ */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1.4rem, 3vw, 2.8rem);
}

section { position: relative; }

.band { padding-block: clamp(4.5rem, 9vw, 8.5rem); }
.band-tight { padding-block: clamp(3rem, 6vw, 5rem); }
.band-line { border-top: 1px solid var(--rule); }
.band-fill { background: var(--paper-2); }

/* --- Masthead ------------------------------------------------------------ */

.masthead {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(1.5) blur(14px);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.masthead[data-stuck="true"] { border-bottom-color: var(--rule); }

.masthead-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 0.85rem var(--gutter);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.mark { width: 25px; height: 25px; color: var(--jade); flex: none; }
.footer .mark { width: 30px; height: 30px; }

.nav {
  display: flex;
  gap: 0.35rem;
  margin-left: auto;
}
.nav a {
  position: relative;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.905rem;
  color: var(--ink-2);
  transition: color 0.18s ease, background 0.18s ease;
}
.nav a:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 6%, transparent); }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 550; }
.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0.8rem;
  right: 0.8rem;
  bottom: 0.05rem;
  height: 1.5px;
  background: var(--jade);
  border-radius: 2px;
}

.masthead-actions { display: flex; align-items: center; gap: 0.4rem; }

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-2);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.icon-button:hover { color: var(--ink); border-color: var(--rule-strong); }
.icon-button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.icon-button .i-moon { display: none; }
:root[data-theme="dark"] .icon-button .i-moon { display: block; }
:root[data-theme="dark"] .icon-button .i-sun { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-button .i-moon { display: block; }
  :root:not([data-theme="light"]) .icon-button .i-sun { display: none; }
}

.ghost-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  height: 36px;
  padding: 0 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  text-decoration: none;
  font-size: 0.87rem;
  color: var(--ink-2);
  transition: color 0.18s ease, border-color 0.18s ease;
}
.ghost-link:hover { color: var(--ink); border-color: var(--rule-strong); }
.ghost-link svg { width: 15px; height: 15px; }

.menu-button { display: none; }

@media (max-width: 880px) {
  .nav {
    position: absolute;
    inset: 100% 0 auto;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem var(--gutter) 1.1rem;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    display: none;
  }
  .masthead[data-open="true"] .nav { display: flex; }
  .nav a { padding: 0.7rem 0; font-size: 1rem; }
  .nav a[aria-current="page"]::after { left: 0; right: auto; width: 1.4rem; }
  .masthead-actions { margin-left: auto; }
  .ghost-link span { display: none; }
  .ghost-link { padding: 0 0.7rem; }
  .menu-button { display: inline-grid; }
}

/* --- Buttons ------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.78rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 0.945rem;
  font-weight: 550;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--jade); color: var(--on-jade); }
.btn-primary:hover { background: var(--jade-hover); }
.btn-secondary { background: var(--surface); color: var(--ink); border-color: var(--rule-strong); }
.btn-secondary:hover { border-color: var(--ink-3); }
.btn-quiet { padding-inline: 0; color: var(--jade-text); }
.btn-quiet:hover { gap: 0.8rem; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .btn:hover { transform: none; }
}

/* --- Hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  padding-block: clamp(3.5rem, 8vw, 7rem) clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}
.hero::before {
  /* Grain plus a soft jade wash from the top-left corner. */
  content: "";
  position: absolute;
  inset: -40% -10% auto;
  height: 150%;
  background:
    radial-gradient(60% 55% at 18% 22%, color-mix(in srgb, var(--jade) 13%, transparent), transparent 70%),
    radial-gradient(40% 40% at 88% 6%, color-mix(in srgb, var(--fat) 9%, transparent), transparent 72%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--grain);
  opacity: 0.16;
  mix-blend-mode: multiply;
  pointer-events: none;
}
:root[data-theme="dark"] .hero::after { mix-blend-mode: screen; opacity: 0.07; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero::after { mix-blend-mode: screen; opacity: 0.07; }
}

.hero-inner { position: relative; z-index: 1; }
.hero-copy { grid-column: span 7; }
.hero-panel { grid-column: span 5; align-self: center; }

@media (max-width: 1020px) {
  .hero-copy, .hero-panel { grid-column: 1 / -1; }
  .hero-panel { margin-top: 1rem; }
}

.hero .display { margin-bottom: 1.5rem; }
.hero .lede { max-width: 52ch; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.1rem;
}

.hero-note {
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}
.hero-note .dot { background: var(--jade); }
/* Spacing separates the items rather than punctuation: a middot would end up
   dangling at the end of a wrapped line, or leading the next one. */
.hero-note { gap: 0.4rem 1.4rem; }

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--jade);
  display: inline-block;
  flex: none;
}

/* --- Measure strip (the ruled figures under the hero) -------------------- */

.measures {
  border-block: 1px solid var(--rule);
  background: color-mix(in srgb, var(--surface) 55%, transparent);
}
.measures-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.measure {
  padding: 1.6rem 0 1.5rem;
  border-left: 1px solid var(--rule);
  padding-left: clamp(1rem, 2.4vw, 2rem);
}
.measure:first-child { border-left: 0; padding-left: 0; }
.measure b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  line-height: 1;
}
.measure span {
  display: block;
  margin-top: 0.55rem;
  font-size: 0.815rem;
  color: var(--ink-3);
  max-width: 24ch;
}
@media (max-width: 760px) {
  .measures-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .measure { padding-left: clamp(0.9rem, 4vw, 1.4rem); }
  .measure:nth-child(3) { border-left: 0; padding-left: 0; }
  .measure:nth-child(n + 3) { border-top: 1px solid var(--rule); }
}

/* --- Section headers ----------------------------------------------------- */

.section-head { grid-column: span 12; max-width: 52ch; margin-bottom: clamp(2rem, 4vw, 3.4rem); }
.section-head .h2 { margin-bottom: 1rem; }

/* --- Feature entries (numbered, ruled, alternating) ---------------------- */

.entry {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1.4rem, 3vw, 2.8rem);
  padding-block: clamp(2.6rem, 5vw, 4.2rem);
  border-top: 1px solid var(--rule);
  align-items: start;
}
.entry:first-of-type { border-top: 0; padding-top: 0; }

.entry-index {
  grid-column: span 1;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  padding-top: 0.45rem;
}
.entry-body { grid-column: span 5; }
.entry-figure { grid-column: span 6; }
.entry.reverse .entry-body { grid-column: 8 / span 5; }
.entry.reverse .entry-figure { grid-column: 2 / span 6; grid-row: 1; }

.entry-body .h3 { margin-bottom: 0.9rem; }
.entry-body .prose { font-size: 0.98rem; }

@media (max-width: 1020px) {
  .entry-index { grid-column: 1 / -1; padding-top: 0; }
  .entry-body, .entry-figure,
  .entry.reverse .entry-body, .entry.reverse .entry-figure { grid-column: 1 / -1; grid-row: auto; }
}

.meta-list {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  border-top: 1px solid var(--rule);
  padding-top: 1.1rem;
}
.meta-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  align-items: baseline;
  font-size: 0.86rem;
  color: var(--ink-2);
}
.meta-list dt, .meta-list .key {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
}

/* --- Panels and figures -------------------------------------------------- */

.panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--rule);
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.panel-head .lights { display: flex; gap: 5px; margin-right: 0.3rem; }
.panel-head .lights i { width: 8px; height: 8px; border-radius: 50%; background: var(--rule-strong); }
.panel-body { padding: clamp(1rem, 2.4vw, 1.5rem); }

.figure {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(1.1rem, 2.5vw, 1.7rem);
}
.figure-caption {
  margin-top: 0.9rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--rule);
  font-size: 0.79rem;
  color: var(--ink-3);
  font-family: var(--mono);
  line-height: 1.5;
}
.diagram { display: block; width: 100%; height: auto; }
.diagram text { font-family: var(--mono); fill: var(--ink-2); }
.diagram .label { font-size: 10px; letter-spacing: 0.06em; }
.diagram .label-sm { font-size: 8.5px; fill: var(--ink-3); letter-spacing: 0.08em; }
.diagram .label-strong { fill: var(--ink); font-size: 10.5px; }
.diagram .box { fill: var(--surface-2); stroke: var(--rule-strong); }
.diagram .box-accent { fill: var(--jade-soft); stroke: var(--jade); }
.diagram .flow { stroke: var(--rule-strong); fill: none; stroke-width: 1.2; }
.diagram .flow-accent { stroke: var(--jade); }

/* --- Ring and bars (mirrors the application's own summary) --------------- */

.ring {
  --progress: 0%;
  width: 148px;
  height: 148px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    conic-gradient(var(--jade) var(--progress), color-mix(in srgb, var(--jade) 14%, transparent) 0);
  position: relative;
  flex: none;
}
.ring::after {
  content: "";
  position: absolute;
  inset: 11px;
  border-radius: 50%;
  background: var(--surface);
}
.ring-text {
  position: relative;
  z-index: 1;
  text-align: center;
  font-family: var(--mono);
  font-size: 1.42rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.ring-text small {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 0.2rem;
}

.macro { margin-bottom: 0.95rem; }
.macro:last-child { margin-bottom: 0; }
.macro-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--ink-3);
  margin-bottom: 0.4rem;
}
.macro-head strong {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--ink);
  font-size: 0.83rem;
}
.bar {
  height: 6px;
  border-radius: 999px;
  background: var(--jade-soft);
  overflow: hidden;
}
.bar i { display: block; height: 100%; background: var(--jade); border-radius: 999px; transition: width 0.5s cubic-bezier(0.22, 1, 0.36, 1); }
.bar.carb { background: var(--carb-soft); }
.bar.carb i { background: var(--carb); }
.bar.fat { background: var(--fat-soft); }
.bar.fat i { background: var(--fat); }

/* --- Ledger (the "what it costs" figure) --------------------------------- */

.ledger { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.ledger-head {
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: 0.3rem;
}
.ledger-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.42rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.83rem;
  color: var(--ink-2);
}
.ledger-row b { color: var(--ink); font-weight: 500; }
.ledger-row.total {
  border-bottom: 0;
  border-top: 1px solid var(--rule-strong);
  margin-top: 0.3rem;
  padding-top: 0.7rem;
  font-size: 0.95rem;
}
.ledger-row.total b { color: var(--jade-text); }

/* --- Tables -------------------------------------------------------------- */

.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead th {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--rule);
  background: var(--surface-2);
  white-space: nowrap;
}
tbody td { padding: 0.78rem 1rem; border-bottom: 1px solid var(--rule); color: var(--ink-2); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody td:first-child { color: var(--ink); font-weight: 500; }
td .num, th .num { font-family: var(--mono); }

/* --- Code ---------------------------------------------------------------- */

.code {
  position: relative;
  background: var(--jade-deep);
  border: 1px solid color-mix(in srgb, var(--jade) 26%, transparent);
  border-radius: var(--radius);
  overflow: hidden;
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0.75rem 0.6rem 1rem;
  border-bottom: 1px solid color-mix(in srgb, #ffffff 10%, transparent);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: color-mix(in srgb, #ffffff 62%, transparent);
}
.code pre {
  margin: 0;
  padding: 1.05rem 1.15rem;
  overflow-x: auto;
  color: #e2f0e7;
  font-size: 0.815rem;
  line-height: 1.75;
  tab-size: 2;
}
.code .c { color: #8fb9a2; font-style: italic; }
.code .k { color: #9fd7ff; }
.code .s { color: #ffd79a; }
.code .p { color: #7fe2b0; }
.copy {
  border: 1px solid color-mix(in srgb, #ffffff 18%, transparent);
  background: transparent;
  color: color-mix(in srgb, #ffffff 78%, transparent);
  font: inherit;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease;
}
.copy:hover { background: color-mix(in srgb, #ffffff 12%, transparent); color: #ffffff; }
.copy[data-copied="true"] { color: #7fe2b0; border-color: #7fe2b0; }

/* --- Chips, callouts ----------------------------------------------------- */

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.24rem 0.66rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.chip-accent { background: var(--jade-soft); border-color: transparent; color: var(--jade-text); }

.callout {
  border-left: 2px solid var(--jade);
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.2rem;
  font-size: 0.9rem;
  color: var(--ink-2);
}
.callout strong { color: var(--ink); }
.callout.warn { border-left-color: var(--carb); }

/* --- Footer -------------------------------------------------------------- */

.footer {
  border-top: 1px solid var(--rule);
  background: var(--paper-2);
  padding-top: clamp(3rem, 6vw, 4.5rem);
}
.footer-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.7fr;
  gap: clamp(1.6rem, 4vw, 3rem);
  padding-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.footer h2 {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.9rem;
}
.footer-brand p { color: var(--ink-3); font-size: 0.87rem; max-width: 34ch; margin-top: 0.9rem; }
.footer-nav { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-nav a { text-decoration: none; font-size: 0.885rem; color: var(--ink-2); width: fit-content; }
.footer-nav a:hover { color: var(--jade-text); }
.footer-meta p { font-size: 0.86rem; color: var(--ink-2); display: flex; align-items: baseline; gap: 0.5rem; margin-bottom: 0.5rem; }
.fine { font-size: 0.775rem !important; color: var(--ink-3) !important; line-height: 1.5; display: block !important; }
.footer-rule {
  border-top: 1px solid var(--rule);
  padding: 1.1rem var(--gutter);
  max-width: var(--shell);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: 0.775rem;
  color: var(--ink-3);
}
@media (max-width: 880px) {
  .footer-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* --- Reveal on scroll ---------------------------------------------------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ===========================================================================
   Screen vocabulary

   The overview and the build page quote the application's screens: an energy
   summary, meal groups, entry rows with their source badge, the nutrient
   table. The demo itself no longer uses any of this - it loads the
   application's own stylesheet instead (see website/src/app-frame.mjs) - so
   what is left here is only what the two written pages illustrate with.
   =========================================================================== */

.summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2.2rem);
  align-items: center;
  padding: clamp(1.1rem, 2.4vw, 1.5rem);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface-2);
}
.summary-macros { min-width: 0; }

@media (max-width: 620px) {
  .summary { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .summary-macros { width: 100%; text-align: left; }
}

.meal-group { margin-top: 1.6rem; }
.meal-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}
.meal-head h3 {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.meal-head span { font-family: var(--mono); font-size: 0.79rem; color: var(--ink-2); font-variant-numeric: tabular-nums; }

.entry-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.8rem;
  align-items: center;
  padding: 0.72rem 0;
  border-bottom: 1px solid var(--rule);
}
.entry-row:last-child { border-bottom: 0; }
.entry-name { font-size: 0.925rem; font-weight: 500; display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.entry-sub { font-size: 0.775rem; color: var(--ink-3); margin-top: 0.15rem; font-family: var(--mono); }
.entry-kcal { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 0.9rem; white-space: nowrap; }
.entry-kcal small { display: block; font-size: 0.68rem; color: var(--ink-3); text-align: right; letter-spacing: 0.05em; }

.badge {
  font-family: var(--mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.1rem 0.42rem;
  border-radius: 4px;
  border: 1px solid var(--rule);
  color: var(--ink-3);
  background: var(--surface);
  white-space: nowrap;
}
.badge-bls { color: var(--jade-text); background: var(--jade-soft); border-color: transparent; }
.badge-usda { color: var(--info); background: var(--info-soft); border-color: transparent; }
.badge-off { color: var(--carb); background: var(--carb-soft); border-color: transparent; }
.badge-recipe { color: var(--fat); background: var(--fat-soft); border-color: transparent; }
.badge-est { color: var(--carb); border-color: color-mix(in srgb, var(--carb) 40%, transparent); }

/* The nutrient table both written pages quote */
.nutrient-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.1rem 1.6rem;
}
.nutrient-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.7rem;
  align-items: center;
  padding: 0.42rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.845rem;
}
.nutrient-row span { color: var(--ink-2); }
.nutrient-row b { font-family: var(--mono); font-weight: 500; font-variant-numeric: tabular-nums; }
.nutrient-row .pct {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-3);
  min-width: 3.4rem;
  text-align: right;
}

.stat-row {
  display: grid;
  /* 190px keeps a four-item row from wrapping to three-plus-one, which would
     leave an empty cell showing the rule colour the gaps are painted with. */
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 1.2rem;
}
.stat {
  background: var(--surface);
  padding: 0.9rem 1rem;
}
.stat b { display: block; font-family: var(--mono); font-size: 1.22rem; letter-spacing: -0.03em; font-weight: 500; font-variant-numeric: tabular-nums; }
.stat span { font-size: 0.735rem; color: var(--ink-3); letter-spacing: 0.04em; }
.stat .delta { color: var(--jade); }

/* ===========================================================================
   Build & deploy page
   =========================================================================== */

.docs-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.toc {
  position: sticky;
  top: 96px;
  border-left: 1px solid var(--rule);
  padding-left: 1.1rem;
}
.toc h2 {
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.9rem;
}
.toc a {
  display: block;
  padding: 0.32rem 0;
  font-size: 0.855rem;
  color: var(--ink-3);
  text-decoration: none;
  border-left: 1.5px solid transparent;
  margin-left: -1.1rem;
  padding-left: 1.1rem;
  transition: color 0.16s ease, border-color 0.16s ease;
}
.toc a:hover { color: var(--ink-2); }
.toc a.is-active { color: var(--jade-text); border-left-color: var(--jade); }

.doc-section { padding-bottom: clamp(2.6rem, 5vw, 4rem); }
.doc-section + .doc-section { border-top: 1px solid var(--rule); padding-top: clamp(2.6rem, 5vw, 4rem); }
.doc-section > .h2 { margin-bottom: 1rem; }
.doc-section .prose + .code,
.doc-section .prose + .table-wrap,
.doc-section .code + .prose,
.doc-section .table-wrap + .prose,
.doc-section .code + .code,
.doc-section .callout + .prose,
.doc-section .prose + .callout,
.doc-section .steps + .prose { margin-top: 1.4rem; }

.steps { counter-reset: step; list-style: none; margin: 1.6rem 0 0; padding: 0; }
.step {
  counter-increment: step;
  position: relative;
  padding: 0 0 1.8rem 3.1rem;
  border-left: 1px solid var(--rule);
  margin-left: 0.95rem;
}
.step:last-child { border-left-color: transparent; padding-bottom: 0; }
.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -0.95rem;
  top: -0.15rem;
  width: 1.9rem;
  height: 1.9rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--ink-3);
}
.step h3 { font-size: 1.06rem; margin-bottom: 0.5rem; }
.step .code { margin-top: 0.9rem; }
.step .prose { font-size: 0.93rem; }

.tabset { border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.tabset-bar { display: flex; gap: 0; border-bottom: 1px solid var(--rule); background: var(--surface-2); }
.tabset-bar button {
  font: inherit;
  font-size: 0.83rem;
  padding: 0.66rem 1.05rem;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--ink-3);
  cursor: pointer;
}
.tabset-bar button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--jade); background: var(--surface); }
.tabset-body { padding: 1.1rem; }
.tabset-body > [hidden] { display: none; }
.tabset .code { border-radius: var(--radius-sm); }

.tree {
  font-family: var(--mono);
  font-size: 0.795rem;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0;
  white-space: pre;
  overflow-x: auto;
}
.tree b { color: var(--ink); font-weight: 500; }
.tree i { color: var(--ink-3); font-style: normal; }

.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.3rem; margin-top: 1.5rem; }

@media (max-width: 940px) {
  .docs-layout { grid-template-columns: 1fr; }
  .toc { position: static; border-left: 0; padding-left: 0; border-bottom: 1px solid var(--rule); padding-bottom: 1rem; }
  .toc-links { display: flex; flex-wrap: wrap; gap: 0.3rem 1rem; }
  .toc a { margin-left: 0; padding-left: 0; border-left: 0; }
  .toc a.is-active { border-left: 0; }
}

.entry-brand { color: var(--ink-3); font-weight: 400; font-size: 0.85em; }