/* ============================================================================
   BeachBio — global stylesheet
   ----------------------------------------------------------------------------
   The single source of truth for how the whole site looks. Linked site-wide:
       <link rel="stylesheet" href="/style.css">
   …along with the two webfonts (see /tools/_template/index.html for the head
   boilerplate). Page-specific styling goes in a small <style> block on the
   page itself — keep shared, reusable patterns here.

   Palette & type are lifted from the saponification timer so the whole site
   reads as one product. See DESIGN.md for the rationale.
   ========================================================================== */

:root {
  /* surfaces */
  --ground:  #0C2426;   /* page background          */
  --panel:   #0F2A2D;   /* cards / fieldsets        */
  --field:   #08191B;   /* insets, table headers    */
  --line:    #234B4F;   /* borders, dividers        */
  --inputbg: #0A1F21;   /* form control background  */
  --inputbd: #2A5054;   /* form control border      */

  /* text */
  --ink:    #EAF2F1;    /* primary text             */
  --muted:  #8FB0AE;    /* secondary text / labels  */
  --faint:  #5B807E;    /* tertiary / axis labels   */

  /* accents — coral is THE primary accent; the rest are data/series colors */
  --accent: #F2674B;    /* coral  — primary action, active, emphasis */
  --gold:   #E0A45C;    /* amber  — notes, secondary series          */
  --cyan:   #5FB8C4;    /* cyan   — series, info                     */
  --rose:   #C77FA6;    /* rose   — series                           */

  /* status */
  --ok:     #6FBF9A;    /* success / within-spec */
  --warn:   #F2674B;    /* warning / out-of-range (shares coral) */

  /* type */
  --sans: 'Space Grotesk', system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  font-size: 16px;
}

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

html, body { margin: 0; }

body {
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  padding: 22px;
}

/* ── layout ────────────────────────────────────────────────────────────── */
.wrap { max-width: 1100px; margin: 0 auto; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.two  { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 760px) {
  .grid, .two { grid-template-columns: 1fr; }
}

.inline   { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.rowbtns  { margin-top: 8px; display: flex; gap: 8px; flex-wrap: wrap; }

/* ── headings ──────────────────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 6px;
}
h1 { font-size: 25px; font-weight: 600; letter-spacing: -.01em; margin: 0; }
h2 {
  font-size: 14px; font-weight: 600; margin: 26px 0 8px; letter-spacing: .02em;
}
.sub  { color: var(--muted); font-size: 13.5px; margin: 7px 0 14px; max-width: 75ch; }
.hint { font-size: 11px; color: var(--faint); margin: 8px 0 0; line-height: 1.55; }

/* step number badge, e.g. <span class="step">1</span> */
.step {
  display: inline-block;
  font-family: var(--mono);
  color: var(--accent);
  font-weight: 700;
  margin-right: 8px;
}

/* ── panels / fieldsets ────────────────────────────────────────────────── */
.panel,
fieldset {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  margin: 0;
}
.panel h2 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 14px;
  font-weight: 600;
}
legend {
  font-weight: 600;
  font-size: 13px;
  padding: 0 6px;
  color: var(--ink);
}
.legend-sub { font-weight: 400; color: var(--muted); font-size: 11px; }

/* ── forms ─────────────────────────────────────────────────────────────── */
label {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .01em;
}
.field-row { margin-bottom: 13px; }
.field-row label { display: block; margin: 0 0 4px; }
.unit { color: var(--faint); }

input[type=number],
input[type=text],
select,
textarea {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  background: var(--inputbg);
  border: 1px solid var(--inputbd);
  border-radius: 7px;
  padding: 8px 10px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input[type=number] { width: 100%; }
textarea { width: 100%; height: 64px; resize: vertical; line-height: 1.5; }
select { font-family: var(--sans); cursor: pointer; }

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(242, 103, 75, .18);
}

/* compact inline form rows (HPLC-style) */
.inline label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.inline input[type=number],
.inline input[type=text],
.inline select { width: auto; min-width: 90px; }

/* ── buttons ───────────────────────────────────────────────────────────── */
button {
  font-family: var(--sans);
  font-size: 13px;
  cursor: pointer;
  color: var(--muted);
  background: var(--inputbg);
  border: 1px solid var(--inputbd);
  border-radius: 6px;
  padding: 7px 12px;
  transition: border-color .15s, color .15s, background .15s;
}
button:hover { border-color: var(--accent); color: var(--ink); }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

button.primary,
button.preset.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #1a0d09;
  font-weight: 600;
}
button.primary:hover { filter: brightness(1.08); color: #1a0d09; }

/* small chips */
.preset { font-size: 11.5px; padding: 6px 9px; }

/* ── tables ────────────────────────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13px;
}
th, td {
  padding: 7px 10px;
  text-align: right;
  border-bottom: 1px solid rgba(35, 75, 79, .55);
}
th {
  background: var(--field);
  font-weight: 600;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--faint);
  font-family: var(--mono);
}
th:first-child, td:first-child { text-align: left; }
tr:last-child td { border-bottom: none; }
td input { width: 84px; }
td input.lbl { width: 110px; text-align: left; font-family: var(--sans); }
.ro { color: var(--muted); }            /* read-only / derived cell */
tr.flag td { background: rgba(242, 103, 75, .08); }
.row-win td { color: var(--accent); }   /* highlighted row */

/* ── readouts / summaries ──────────────────────────────────────────────── */
.summary,
.readout {
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
}
.summary b, .readout b { color: var(--ink); font-family: var(--sans); }

.derived {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  color: var(--muted);
}
.derived b { color: var(--accent); font-family: var(--mono); }

/* ── verdicts / status callouts ────────────────────────────────────────── */
.verdict {
  margin-top: 8px;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 12.5px;
}
.verdict.ok {
  background: rgba(111, 191, 154, .12);
  border: 1px solid rgba(111, 191, 154, .4);
  color: var(--ok);
}
.verdict.warn {
  background: rgba(242, 103, 75, .1);
  border: 1px solid rgba(242, 103, 75, .4);
  color: var(--accent);
}

/* info note — amber-keyed callout */
.note {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.6;
  margin-top: 14px;
  padding: 12px 14px;
  background: rgba(224, 164, 92, .07);
  border: 1px solid rgba(224, 164, 92, .28);
  border-radius: 10px;
}
.note b { color: var(--gold); }

/* warnings */
.warn     { color: var(--warn); }
.flag     { font-size: 11px; color: var(--warn); }
.flagnote { font-size: 12px; color: var(--warn); margin-top: 8px; line-height: 1.6; }

/* ── misc ──────────────────────────────────────────────────────────────── */
.toggle { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.toggle input { accent-color: var(--accent); width: 15px; height: 15px; }
sup, sub { font-size: .72em; }
code {
  font-family: var(--mono);
  font-size: .875em;
  color: var(--accent);
}