/* ==========================================================================
   Reis & Wasser — "Küchenzettel" (light, editorial) theme
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  --paper: #f6f3ee;
  --card: #fffdf9;
  --ink: #1d1b18;
  --ink-soft: #5d584f;
  --muted: #8a8479;
  --line: #e4dfd5;
  --accent: #2f6b5e;
  --accent-soft: #dcebe5;
  --accent-on-ink: #8fd1bd;
  --ink-line: #3a3731;
  --ink-muted: #a8a194;

  --font-sans: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 22px;
  --gutter: 24px;
  --max-width: 560px;

  color-scheme: light;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.4 var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

h1, h2, p, ul, dl, dd { margin: 0; }
ul[role='list'] { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }

:focus-visible { outline: 2.5px solid var(--accent); outline-offset: 2px; }

.app { outline: none; }

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) var(--gutter) max(40px, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
}
.page--home { gap: 26px; padding-top: max(28px, env(safe-area-inset-top)); }
.page--detail { gap: 20px; }

/* ---------- Typography helpers ---------- */
.eyebrow {
  font: 500 12px var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow--accent { color: var(--accent); }
.eyebrow--inverse { color: var(--ink-muted); }

.display { font: 800 40px/1 var(--font-sans); letter-spacing: -0.03em; }
.display--sm { font-size: 32px; line-height: 1.05; letter-spacing: -0.02em; text-wrap: balance; }

.lead { margin-top: 4px; font-size: 15px; color: var(--ink-soft); }
.mono { font: 400 12px var(--font-mono); }
.muted { color: var(--muted); }
.accent { color: var(--accent-on-ink); }

/* ---------- Home ---------- */
.intro { display: flex; flex-direction: column; gap: 6px; }

.favorites { display: flex; flex-direction: column; gap: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-block;
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 14px;
}

.category { display: flex; flex-direction: column; gap: 10px; }
.category__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: 6px;
}
.category__title { font: 700 17px var(--font-sans); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }

.card {
  height: 100%;
  min-height: 92px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  padding: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.15s;
}
.card:hover { border-color: var(--ink); }
.card__name { font: 600 15px/1.2 var(--font-sans); text-wrap: pretty; }
.card__meta { display: flex; justify-content: space-between; font: 400 12px var(--font-mono); color: var(--muted); }
.card__fav { color: var(--accent); }

.note {
  border-top: 1.5px solid var(--ink);
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.note__title { font: 700 14px var(--font-sans); }
.note p { font-size: 14px; line-height: 1.45; color: var(--ink-soft); }

/* ---------- Detail ---------- */
.toolbar { display: flex; justify-content: space-between; align-items: center; }
.link-back { font-weight: 600; font-size: 15px; padding: 10px 0; }

.pill {
  border: 1.5px solid var(--ink);
  background: none;
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 600;
  font-size: 13px;
  min-width: 108px;
}
.pill[aria-pressed='true'] { background: var(--ink); color: var(--paper); }

.title-block { display: flex; flex-direction: column; gap: 4px; }

.hint {
  background: var(--accent-soft);
  border-radius: 12px;
  padding: 12px 14px;
  font-weight: 500;
  font-size: 14px;
}

.amount { display: flex; flex-direction: column; gap: 12px; }

.stepper { display: flex; align-items: center; gap: 12px; }
.stepper__value { flex: 1; display: flex; align-items: baseline; justify-content: center; gap: 4px; min-width: 0; }
.stepper__input {
  width: 4.2ch;
  min-width: 0;
  border: none;
  border-bottom: 2px solid transparent;
  background: none;
  text-align: right;
  font: 700 56px/1.1 var(--font-sans);
  letter-spacing: -0.03em;
  padding: 0;
  -moz-appearance: textfield;
  appearance: textfield;
}
.stepper__input:focus { outline: none; border-bottom-color: var(--accent); }
.stepper__input::-webkit-inner-spin-button,
.stepper__input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.stepper__unit { font-weight: 600; font-size: 22px; }

.round {
  flex: none;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  background: none;
  font-size: 26px;
  line-height: 1;
}
.round--solid { background: var(--ink); color: var(--paper); }
.round:active { transform: scale(0.96); }

.presets { display: flex; gap: 6px; }
.preset {
  flex: 1;
  padding: 10px 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--card);
  font: 500 13px var(--font-mono);
}
.preset[aria-pressed='true'] { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.result {
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.result__water { display: flex; flex-direction: column; gap: 2px; }
.result__value { display: flex; align-items: baseline; gap: 6px; }
.result__value output { font: 800 64px/1 var(--font-sans); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.result__unit { font-weight: 600; font-size: 24px; }

.result__facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink-line);
  padding-top: 14px;
}
.result__facts > div { display: flex; flex-direction: column; gap: 4px; }
.result__facts > div + div { border-left: 1px solid var(--ink-line); padding-left: 12px; }
.result__facts dt { font: 400 11px var(--font-mono); color: var(--ink-muted); }
.result__facts dd { font: 700 17px var(--font-sans); }

.kcal {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1.5px solid var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.kcal__row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.kcal__label { display: flex; flex-direction: column; gap: 2px; }
.kcal__source { font: 400 12px/1.5 var(--font-mono); color: var(--muted); }
.kcal__source a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; overflow-wrap: anywhere; }
.kcal__source a:hover { color: var(--ink); }
.kcal__title { font: 700 15px var(--font-sans); }
.kcal__value { font: 800 28px var(--font-sans); letter-spacing: -0.02em; white-space: nowrap; font-variant-numeric: tabular-nums; }
.kcal__value span { font-weight: 600; font-size: 15px; }

.footnote { font: 400 12px/1.5 var(--font-mono); color: var(--muted); }

/* ---------- Measuring cup (detail + settings) ---------- */
.intro__top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.settings-link {
  font: 500 12px var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--ink);
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 7px 12px;
}
.settings-link:hover { border-color: var(--ink); }

.result__cups { margin-top: 6px; font: 400 13px var(--font-mono); color: var(--ink-muted); min-height: 1.4em; }

.cup {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.cup__row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.cup__label { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.cup__title { font: 700 15px var(--font-sans); }
.cup__help { font: 400 12px/1.5 var(--font-mono); color: var(--muted); }
.cup__help a, .link-button { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.link-button { background: none; border: none; padding: 0; font: inherit; }
.link-button[hidden] { display: none; }

.field {
  flex: none;
  display: flex;
  align-items: baseline;
  gap: 4px;
  border: 1.5px solid var(--ink);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  background: var(--paper);
}
.field:focus-within { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.field__input {
  width: 4ch;
  border: none;
  background: none;
  padding: 0;
  text-align: right;
  font: 700 20px var(--font-sans);
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
  appearance: textfield;
}
.field__input:focus { outline: none; }
.field__input::-webkit-inner-spin-button,
.field__input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.field__unit { font: 600 14px var(--font-sans); }
.field--sm { padding: 4px 8px; }
.field--sm .field__input { font-size: 16px; }

/* ---------- Settings ---------- */
.page--settings { gap: 22px; }
.settings-card { display: flex; flex-direction: column; gap: 10px; padding: 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.settings-section { display: flex; flex-direction: column; gap: 12px; }
.settings-group { display: flex; flex-direction: column; gap: 4px; margin-top: 6px; }
.setting-list { display: flex; flex-direction: column; }
.setting-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.setting-row--main { border-bottom: none; padding: 0; }
.setting-row__label { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.setting-row__name { font: 600 15px/1.25 var(--font-sans); }
.setting-row__controls { display: flex; align-items: center; gap: 8px; }
.icon-button {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--card);
  font-size: 16px;
  line-height: 1;
}
.icon-button:hover { border-color: var(--ink); }
.icon-button[hidden] { display: none; }
.pill--wide { width: 100%; padding: 12px 14px; }

/* ---------- Small screens ---------- */
@media (max-width: 360px) {
  :root { --gutter: 16px; }
  .display { font-size: 34px; }
  .stepper__input { font-size: 44px; }
  .result__value output { font-size: 52px; }
  .result__facts dd { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}