/* Tallywell — "clinical chart paper" design system.
   Cool paper ground, mono numerals as brand voice, indigo = night/sleep,
   amber = caffeine, leaf = plants. Signature element: the 24-hour day ruler. */

:root {
  --paper: #F4F6F4;
  --card: #FFFFFF;
  --ink: #182521;
  --ink-soft: #5A6B64;
  --line: #D9E0DB;
  --line-strong: #B9C4BE;
  --night: #25355F;
  --night-soft: #E9EDF7;
  --amber: #A65708;
  --amber-bright: #D97E1F;
  --amber-soft: #F7EBDD;
  --leaf: #2F7D4E;
  --leaf-soft: #E5F1E9;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

a { color: var(--night); text-underline-offset: 2px; }
a:hover { color: var(--amber); }

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

h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.15; margin: 0 0 .35em; }
h1 { font-size: clamp(1.9rem, 4.4vw, 2.9rem); letter-spacing: -.01em; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.05rem; font-family: var(--sans); font-weight: 650; }

/* ---------------------------------------------------------------- header/footer */

.site-head { border-bottom: 1px solid var(--line); background: var(--card); }
.head-row { display: flex; align-items: baseline; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; }
.brand { font-family: var(--serif); font-size: 1.35rem; font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.brand-dot { color: var(--amber-bright); }
.site-nav a { font-family: var(--mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; text-decoration: none; margin-left: 18px; }

.site-foot { border-top: 1px solid var(--line); margin-top: 72px; padding: 22px 0 34px; }
.foot-num { font-size: .82rem; color: var(--ink-soft); max-width: 62ch; }
.foot-meta { font-family: var(--mono); font-size: .75rem; color: var(--ink-soft); }

/* ---------------------------------------------------------------- day ruler (signature) */

.day-ruler {
  position: relative;
  height: 40px;
  margin: 26px 0 8px;
  border-bottom: 2px solid var(--ink);
}
.ruler-tick {
  position: absolute; bottom: 0; transform: translateX(-50%);
  font: 10px var(--mono); color: var(--ink-soft); text-align: center;
}
.ruler-tick i { display: block; width: 1px; height: 7px; background: var(--line-strong); margin: 0 auto 3px; }
.ruler-flag {
  position: absolute; bottom: -2px; transform: translateX(-50%);
  font: 700 11px var(--mono); color: var(--amber); white-space: nowrap;
}
.ruler-flag i { display: block; width: 2px; height: 24px; background: var(--amber-bright); margin: 0 auto 2px; }

/* ---------------------------------------------------------------- hero */

.hero {
  padding: 56px 0 8px;
  background-image:
    repeating-linear-gradient(to right, rgba(37,53,95,.045) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(to bottom, rgba(37,53,95,.045) 0 1px, transparent 1px 28px);
}
.eyebrow { font: 700 .72rem var(--mono); text-transform: uppercase; letter-spacing: .18em; color: var(--amber); margin: 0 0 10px; }
.hero h1 { max-width: 14ch; }
.hero-sub { max-width: 52ch; color: var(--ink-soft); font-size: 1.06rem; }
.hero-tool {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 18px 20px; margin-top: 26px;
}
.hero-tool label { font: 700 .72rem var(--mono); text-transform: uppercase; letter-spacing: .1em; display: block; margin-bottom: 4px; color: var(--ink-soft); }
.hero-result { min-width: 200px; }
.hero-num { display: block; font: 700 2.3rem var(--mono); color: var(--amber); letter-spacing: -.02em; line-height: 1.1; }
.hero-note { font-size: .78rem; color: var(--ink-soft); }

/* ---------------------------------------------------------------- sections & cards */

.home-grid { margin-top: 56px; }
.sec-h { border-bottom: 2px solid var(--ink); padding-bottom: 6px; }
.sec-sub { color: var(--ink-soft); max-width: 60ch; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 18px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }

.card {
  display: block; background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 18px 18px 16px; text-decoration: none; color: var(--ink);
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(24,37,33,.08); color: var(--ink); }
.card p { color: var(--ink-soft); font-size: .92rem; margin: 4px 0 0; }
.card-cta { display: inline-block; margin-top: 12px; font: 700 .78rem var(--mono); color: var(--amber); }
.tool-card { border-top: 4px solid var(--line-strong); }
.tool-card.t-amber { border-top-color: var(--amber-bright); }
.tool-card.t-leaf { border-top-color: var(--leaf); }
.tool-card.t-night { border-top-color: var(--night); }

.food-links { columns: 2; list-style: none; padding: 0; margin: 14px 0 0; font-size: .95rem; }
.food-links li { margin: 6px 0; }
.food-links a { text-decoration: none; }

/* ---------------------------------------------------------------- crumbs */

.crumbs { font: .75rem var(--mono); margin: 26px 0 6px; color: var(--ink-soft); }
.crumbs a { color: var(--ink-soft); text-decoration: none; }
.crumbs a:hover { color: var(--amber); }
.crumb-sep { margin: 0 7px; color: var(--line-strong); }

/* ---------------------------------------------------------------- tool pages */

.lede { color: var(--ink-soft); max-width: 62ch; font-size: 1.02rem; }
.lede.small { font-size: .9rem; }

.tool-layout { display: grid; grid-template-columns: minmax(320px, 5fr) 7fr; gap: 20px; margin-top: 26px; align-items: start; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 14px; }
.field label, .field .label {
  display: block; font: 700 .72rem var(--mono); text-transform: uppercase;
  letter-spacing: .1em; color: var(--ink-soft); margin-bottom: 6px;
}
input[type="time"], input[type="number"], select {
  width: 100%; padding: 9px 10px; border: 1.5px solid var(--line-strong); border-radius: 6px;
  background: #fff; color: var(--ink); font: 600 1.05rem var(--mono);
}
input:focus, select:focus { border-color: var(--night); outline: none; }

.factors { display: grid; gap: 7px; font-size: .92rem; }
.factors label { display: flex; align-items: center; gap: 9px; font-weight: 500; text-transform: none; letter-spacing: 0; color: var(--ink); cursor: pointer; }
.factors input { width: auto; accent-color: var(--night); }

.drink-log { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; margin: 0 0 14px; }
.drink-log legend { font: 700 .72rem var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-soft); padding: 0 6px; }
.drink-row { display: grid; grid-template-columns: 1fr 74px 96px 34px; gap: 8px; margin-bottom: 8px; align-items: center; }
.drink-row select, .drink-row input { padding: 7px 8px; font-size: .95rem; }
.drink-row .mg { font: 600 .85rem var(--mono); color: var(--ink-soft); text-align: right; }
.rm { border: none; background: none; color: var(--ink-soft); font-size: 1rem; cursor: pointer; padding: 4px; }
.rm:hover { color: var(--amber); }

.btn {
  display: inline-block; background: var(--ink); color: #fff; border: none; border-radius: 7px;
  padding: 10px 16px; font: 650 .9rem var(--sans); text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--night); color: #fff; }
.btn.ghost { background: transparent; color: var(--night); border: 1.5px solid var(--line-strong); }
.btn.ghost:hover { border-color: var(--night); background: var(--night-soft); }

.result-panel { position: sticky; top: 16px; }
.result-label { font: 700 .72rem var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--ink-soft); margin: 0; }
.big-num { font: 700 clamp(2.4rem, 5vw, 3.6rem) var(--mono); letter-spacing: -.02em; line-height: 1.05; margin: 4px 0 2px; color: var(--ink); }
.big-num .ok { color: var(--leaf); }
.big-num .over { color: var(--amber); }
.big-den { font-size: .45em; color: var(--ink-soft); font-weight: 500; }
.result-note { font-size: .92rem; color: var(--ink-soft); margin: 4px 0 2px; max-width: 56ch; }
.mini-h { font: 700 .78rem var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--ink-soft); margin: 22px 0 8px; }
.residual-block { margin-top: 6px; }

/* ---------------------------------------------------------------- tables */

.data-table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.data-table th, .data-table td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; }
.data-table thead th { font: 700 .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); border-bottom: 2px solid var(--ink); }
.data-table .num { font-family: var(--mono); text-align: right; white-space: nowrap; font-weight: 600; }
.data-table .lose { color: #9AA5A0; }
.data-table .lose b, .data-table .lose .num { font-weight: 400; color: #9AA5A0; }
.data-table td .flag { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-left: 7px; }
.flag.ok { background: var(--leaf); }
.flag.warn { background: var(--amber-bright); }
.flag.over { background: #C0392B; }
.chart-table { margin-top: 20px; }

/* ---------------------------------------------------------------- charts */

.chart { width: 100%; height: auto; display: block; margin: 22px 0 8px; }
.chart text { font-family: var(--mono); }
.cg { stroke: #DFE6E1; stroke-width: 1; }
.cxl { font-size: 11px; fill: var(--ink-soft); }
.cyl { font-size: 11px; fill: var(--ink-soft); text-anchor: end; }
.clg { font-size: 11px; font-weight: 600; }

.chart-page .lede { margin-bottom: 0; }

/* ---------------------------------------------------------------- stat strip / chips */

.stat-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 22px 0; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.stat-n { display: block; font: 700 1.55rem var(--mono); letter-spacing: -.01em; }
.stat-l { font-size: .78rem; color: var(--ink-soft); }

.chips { display: flex; flex-wrap: wrap; gap: 9px; margin: 16px 0; }
.chip {
  display: inline-block; padding: 6px 12px; border: 1px solid var(--line-strong); border-radius: 999px;
  font: 600 .8rem var(--mono); text-decoration: none; color: var(--ink); background: var(--card);
}
.chip:hover { border-color: var(--night); color: var(--night); }
.chip.plant { border-color: var(--leaf); color: var(--leaf); background: var(--leaf-soft); }
.chip.amber { border-color: var(--amber-bright); color: var(--amber); background: var(--amber-soft); }
.chips.more { margin-top: 22px; }

/* ---------------------------------------------------------------- plants tracker */

.tool-layout.plants { grid-template-columns: minmax(280px, 4fr) 8fr; }
.progress { height: 10px; background: var(--line); border-radius: 5px; overflow: hidden; margin: 14px 0 10px; }
.progress-fill { height: 100%; background: var(--leaf); width: 0; transition: width .25s ease; }
.counted { font: .78rem var(--mono); color: var(--ink-soft); margin-top: 14px; line-height: 1.8; }
.plant-group { margin-bottom: 18px; }
.plant-group .quarter { font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--ink-soft); margin-left: 8px; }
.plant-chip {
  border: 1.5px solid var(--line-strong); background: var(--card); color: var(--ink);
  border-radius: 999px; padding: 7px 14px; font: 600 .86rem var(--sans); cursor: pointer; margin: 0 8px 8px 0;
}
.plant-chip:hover { border-color: var(--leaf); }
.plant-chip[aria-pressed="true"] { background: var(--leaf); border-color: var(--leaf); color: #fff; }

/* ---------------------------------------------------------------- faq & method */

.faq { margin-top: 28px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 13px 2px; font-weight: 650; }
.faq summary:hover { color: var(--amber); }
.faq p { margin: 0 0 14px; color: var(--ink-soft); max-width: 68ch; }

.method { margin-top: 44px; border-top: 2px solid var(--ink); padding-top: 16px; }
.method p { color: var(--ink-soft); max-width: 70ch; }
.method .sources { margin: 10px 0; padding-left: 20px; color: var(--ink-soft); }
.method .sources li { margin: 4px 0; }
.see-also { margin-top: 14px; }
.cta-line { margin-top: 18px; }

/* ---------------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .tool-layout, .tool-layout.plants { grid-template-columns: 1fr; }
  .result-panel { position: static; }
  .cards { grid-template-columns: 1fr; }
  .cards.two { grid-template-columns: 1fr; }
  .food-links { columns: 1; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; }
  .drink-row { grid-template-columns: 1fr 60px 86px 30px; }
  .stat-strip { grid-template-columns: 1fr; }
  .site-nav a { margin-left: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .card:hover { transform: none; }
}

/* ---------------------------------------------------------------- header search */

.head-search { position: relative; flex: 1; max-width: 300px; margin: 0 18px; }
#site-search {
  width: 100%; padding: 7px 12px; border: 1.5px solid var(--line-strong); border-radius: 999px;
  background: var(--paper); font: 500 .88rem var(--sans);
}
#site-search:focus { border-color: var(--night); outline: none; background: #fff; }
.search-pop {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 50;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  box-shadow: 0 10px 28px rgba(24,37,33,.14); overflow: hidden;
}
.sp-row {
  display: flex; align-items: center; gap: 10px; padding: 9px 14px;
  text-decoration: none; color: var(--ink); font-size: .9rem; border-bottom: 1px solid var(--line);
}
.sp-row:last-child { border-bottom: none; }
.sp-row:hover { background: var(--night-soft); }
.sp-kind {
  font: 700 .62rem var(--mono); text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink-soft); background: var(--paper); border-radius: 4px; padding: 2px 6px; min-width: 52px; text-align: center;
}
.sp-empty { padding: 12px 14px; font-size: .86rem; color: var(--ink-soft); }

/* ---------------------------------------------------------------- index tables (foods/compare) */

.food-group-block { margin-top: 34px; }
.food-group-block h2 { border-bottom: 2px solid var(--ink); padding-bottom: 6px; }
.food-rows { display: grid; gap: 2px; margin-top: 10px; }
.food-row {
  display: grid; grid-template-columns: 1fr 110px 100px 90px; gap: 8px; align-items: baseline;
  padding: 9px 12px; background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  text-decoration: none; color: var(--ink); font-size: .93rem;
}
.food-row:hover { border-color: var(--night); }
.fr-name { font-weight: 600; }
.fr-num { font: 600 .8rem var(--mono); color: var(--ink-soft); text-align: right; }
@media (max-width: 640px) {
  .food-row { grid-template-columns: 1fr 90px; }
  .food-row .fr-num:nth-child(n+3) { display: none; }
  .head-search { max-width: none; margin: 0 0 10px; order: 3; flex-basis: 100%; }
  .head-row { flex-wrap: wrap; }
}

/* ---------------------------------------------------------------- compare app & food charts */

.compare-app { margin-top: 20px; }
.cmp-pickers { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: end; }
.cmp-swap { margin-bottom: 4px; }
#cmp-live { margin-top: 18px; }
@media (max-width: 640px) { .cmp-pickers { grid-template-columns: 1fr; } .cmp-swap { justify-self: center; } }