/* Hearten. Cool paper, deep teal ink, pomegranate only for the heart mark.
   Status is always words first; colour supports it. */

:root {
  --paper: #f5f7f6;
  --surface: #ffffff;
  --ink: #12302f;
  --ink-soft: #4a6463;
  --line: #d3dedb;
  --teal: #1f6f68;
  --teal-wash: #e3f1ee;
  --amber: #9a5b00;
  --amber-wash: #fbefd9;
  --violet: #4f4ea8;
  --violet-wash: #ebebfa;
  --grey-wash: #eceff0;
  --pom: #a23b52;
  --focus: #2b5fd9;

  --serif: "Young Serif", Georgia, serif;
  --sans: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;

  --step--1: 0.9rem;
  --step-0: 1.0625rem;
  --step-1: 1.3rem;
  --step-2: 1.7rem;
  --step-3: 2.4rem;
  --radius-field: 8px;
  --radius-panel: 14px;
}

/* Dark theme: follows the system setting unless the person picks one with the
   toggle (data-theme on <html>). */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0f1d1c;
    --surface: #152826;
    --ink: #e4efec;
    --ink-soft: #a7bfbb;
    --line: #2c4441;
    --teal: #6cc4b8;
    --teal-wash: #173a36;
    --amber: #f0b45a;
    --amber-wash: #3b2c12;
    --violet: #aaa9f2;
    --violet-wash: #26264a;
    --grey-wash: #1d2f2d;
    --pom: #e0788f;
    --focus: #8fb0ff;
  }
}
:root[data-theme="dark"] {
    --paper: #0f1d1c;
    --surface: #152826;
    --ink: #e4efec;
    --ink-soft: #a7bfbb;
    --line: #2c4441;
    --teal: #6cc4b8;
    --teal-wash: #173a36;
    --amber: #f0b45a;
    --amber-wash: #3b2c12;
    --violet: #aaa9f2;
    --violet-wash: #26264a;
    --grey-wash: #1d2f2d;
    --pom: #e0788f;
    --focus: #8fb0ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.2; margin: 0; }
h2 { font-size: var(--step-1); }
h3 { font-size: var(--step-0); }
p { margin: 0 0 0.75em; }
a { color: var(--teal); }

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

.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--surface); padding: 0.5rem 1rem; z-index: 10;
}
.skip:focus { left: 1rem; top: 1rem; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------------------------------------------------------------- masthead */

.masthead {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2.5rem 1rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0 1rem;
  align-items: start;
}
.masthead .tagline { grid-column: 1 / -1; }
.theme-toggle {
  font: inherit; font-size: var(--step--1);
  display: inline-flex; align-items: center; gap: 0.45rem;
  color: var(--ink); background: var(--surface);
  border: 1.5px solid var(--line); border-radius: 999px;
  padding: 0.4rem 0.85rem; margin-top: 0.5rem; cursor: pointer;
}
.theme-toggle svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 2; }
.wordmark {
  display: flex; align-items: center; gap: 0.55rem;
  font-family: var(--serif); font-size: var(--step-3); letter-spacing: -0.01em;
}
.mark { width: 2.2rem; height: 2.2rem; fill: var(--pom); flex: none; }
.tagline { color: var(--ink-soft); max-width: 46ch; margin: 0.4rem 0 0; font-size: var(--step-0); }

/* ------------------------------------------------------------------ layout */

.layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 880px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 1.25rem 1.25rem 1.1rem;
  margin-bottom: 1rem;
}
.panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.panel h2 { margin-bottom: 0.75rem; }

/* ------------------------------------------------------------------ fields */

.field-label { display: block; font-weight: 700; font-size: var(--step--1); margin: 0.9rem 0 0.3rem; }
.optional { font-weight: 400; color: var(--ink-soft); }
.hint { color: var(--ink-soft); font-size: var(--step--1); margin-top: -0.4rem; }
.sub { font-weight: 700; font-size: var(--step--1); margin: 1rem 0 0.35rem; }

textarea, input[type="number"], input[type="text"], select {
  font: inherit;
  color: var(--ink);
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-field);
  padding: 0.55rem 0.7rem;
}
textarea {
  width: 100%;
  resize: vertical;
  line-height: 1.7;
  min-height: 12rem;
}
input[type="text"] { width: 100%; }
input[type="number"] { width: 7.5rem; }
select { width: 100%; }
textarea:focus, input:focus, select:focus { border-color: var(--teal); }

.inline-fields { display: flex; align-items: center; gap: 0.75rem; margin-top: 0.6rem; }
.inline-fields .field-label { margin: 0; }
.unit-input { display: flex; align-items: center; gap: 0.4rem; }
.pair { display: grid; grid-template-columns: auto 1fr; gap: 1rem; }
.pair .field-label { margin-top: 0.4rem; }
.indent { margin: 0.2rem 0 0.4rem 1.85rem; display: flex; align-items: center; gap: 0.4rem; }

fieldset { border: 0; padding: 0; margin: 0 0 0.25rem; }
fieldset + fieldset { border-top: 1px solid var(--line); padding-top: 1rem; margin-top: 1rem; }
legend { font-family: var(--serif); font-size: var(--step-0); padding: 0; margin-bottom: 0.4rem; }

.check { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.25rem 0; cursor: pointer; }
.check input { width: 1.15rem; height: 1.15rem; margin: 0.22rem 0 0; accent-color: var(--teal); flex: none; }

.when[hidden] { display: none; }

/* Chips: real checkboxes, styled as toggles. */
.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chips label { position: relative; cursor: pointer; }
.chips input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chips span {
  display: inline-block;
  padding: 0.35rem 0.8rem;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  font-size: var(--step--1);
  background: var(--paper);
}
.chips input:checked + span { background: var(--teal); border-color: var(--teal); color: var(--surface); }
.chips input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }

/* ----------------------------------------------------------------- buttons */

.primary {
  font: inherit; font-weight: 700;
  background: var(--teal); color: var(--surface);
  border: 0; border-radius: var(--radius-field);
  padding: 0.85rem 1.4rem;
  cursor: pointer;
  width: 100%;
}
.primary:hover { filter: brightness(1.08); }
.primary[aria-busy="true"] { opacity: 0.7; cursor: progress; }
.link-button {
  font: inherit; font-size: var(--step--1);
  background: none; border: 0; padding: 0.2rem 0;
  color: var(--teal); text-decoration: underline; text-underline-offset: 3px; cursor: pointer;
}
.submit-row { position: sticky; bottom: 0; padding: 0.75rem 0 1rem; background: linear-gradient(transparent, var(--paper) 30%); }
.form-error { color: var(--amber); font-weight: 700; margin: 0.6rem 0 0; }

/* ----------------------------------------------------------------- results */

.empty {
  border: 1.5px dashed var(--line);
  border-radius: var(--radius-panel);
  padding: 2rem 1.5rem;
  color: var(--ink-soft);
}
.empty-title { font-family: var(--serif); font-size: var(--step-1); color: var(--ink); }

.verdict {
  border-radius: var(--radius-panel);
  padding: 1.1rem 1.25rem;
  margin-bottom: 1rem;
  border-left: 6px solid currentColor;
}
.verdict p { margin: 0; }
.verdict .verdict-text { font-family: var(--serif); font-size: var(--step-1); color: var(--ink); }
.verdict .verdict-sub { color: var(--ink-soft); margin-top: 0.3rem; font-size: var(--step--1); }
.verdict.fits { background: var(--teal-wash); color: var(--teal); }
.verdict.over { background: var(--amber-wash); color: var(--amber); }
.verdict.check { background: var(--violet-wash); color: var(--violet); }

/* The annotated recipe: each line with its USDA match in the margin. */
.annotated { padding: 0; overflow: hidden; }
.annotated h2 { padding: 1.1rem 1.25rem 0; }
.annotated ol { list-style: none; margin: 0.6rem 0 0; padding: 0; }
.annotated li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 1rem;
  padding: 0.65rem 1.25rem;
  border-top: 1px solid var(--line);
}
.annotated .line { font-weight: 700; }
.annotated .margin { font-size: var(--step--1); color: var(--ink-soft); border-left: 2px solid var(--line); padding-left: 0.8rem; }
.annotated .margin p { margin: 0; }
.annotated .grams { color: var(--ink); font-weight: 700; }
.annotated .flagnote { color: var(--amber); font-weight: 700; margin-top: 0.2rem; }
.annotated .unmatched .margin { border-left-color: var(--amber); }
@media (max-width: 560px) {
  .annotated li { grid-template-columns: 1fr; gap: 0.3rem; }
}

.group { margin-bottom: 1rem; }
.group > h2 { margin: 0 0 0.6rem; }

.check-row {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-field);
  padding: 0.85rem 1rem;
  margin-bottom: 0.5rem;
}
.check-top { display: flex; justify-content: space-between; align-items: baseline; gap: 0.75rem; }
.check-label { font-family: var(--sans); font-weight: 700; font-size: var(--step-0); }
.check-message { margin: 0.25rem 0 0; }
.check-detail { font-size: var(--step--1); color: var(--ink-soft); margin: 0.35rem 0 0; }
.check-notes { font-size: var(--step--1); color: var(--ink-soft); margin: 0.4rem 0 0; padding-left: 1.1rem; }
.check-source { font-size: var(--step--1); margin: 0.35rem 0 0; }

.status {
  font-size: var(--step--1); font-weight: 700;
  padding: 0.1rem 0.6rem; border-radius: 999px; white-space: nowrap;
}
.status.fits, .status.meets_goal { background: var(--teal-wash); color: var(--teal); }
.status.over, .status.doesnt_fit { background: var(--amber-wash); color: var(--amber); }
.status.check { background: var(--violet-wash); color: var(--violet); }
.status.incomplete, .status.below_goal, .status.progress, .status.info { background: var(--grey-wash); color: var(--ink-soft); }

/* Meter: the serving against one meal's share (the tick). */
.meter {
  position: relative; height: 0.55rem; margin: 0.6rem 0 0.1rem;
  background: var(--grey-wash); border-radius: 999px; overflow: visible;
}
.meter-fill { height: 100%; border-radius: 999px; background: var(--teal); max-width: 100%; }
.meter.over .meter-fill { background: var(--amber); }
.meter-mark { position: absolute; top: -0.25rem; bottom: -0.25rem; width: 2px; background: var(--ink); }

.notes-list { font-size: var(--step--1); color: var(--ink-soft); padding-left: 1.1rem; }

.loading { color: var(--ink-soft); padding: 1.5rem 0; }

/* ---------------------------------------------------------------- colophon */

.colophon {
  max-width: 1180px; margin: 0 auto; padding: 1.5rem 1rem 3rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft); font-size: var(--step--1);
}
.colophon p { max-width: 80ch; }

@media (prefers-reduced-motion: no-preference) {
  .results-in { animation: settle 280ms ease-out; }
  @keyframes settle { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
}