/* ============================================================
   donorbook — warm crema + espresso, sky-cyan ring, tamarind defer.
   The eligibility ring is the motif; carried into OG + icon.
   Light and dark, both WCAG-AA checked.
   ============================================================ */

:root {
  /* Light scheme (default) — crema pulled a touch greener than bone */
  --bg:        #F4EFE4;   /* Crema (warm, slightly green) */
  --surface:   #FBF7EE;
  --surface2:  #EFE7D6;
  --ink:       #2B1A10;   /* Espresso */
  --ink-soft:  #5c4a3b;
  --line:      #D8CBB4;
  --accent:    #0A5C7A;   /* Sky (deepened so accent-on-accent-dim clears AA: 5.3:1) */
  --accent-ink:#ffffff;
  --accent-dim:rgba(10,92,122,0.13);
  --defer:     #9A4405;   /* Tamarind, deepened for AA on crema */
  --defer-dim: rgba(154,68,5,0.12);
  --ok:        #186640;   /* eligible green (AA on ok-dim: 5.1:1) */
  --ok-dim:    rgba(24,102,64,0.12);
  --ask:       #7D5200;   /* ask-bank ochre (AA on ask-dim: 5.0:1) */
  --ask-dim:   rgba(125,82,0,0.12);
  --ring-track:#E1D6C1;

  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 16px 40px -26px rgba(43,26,16,0.55);
  --wrap: 1080px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { color-scheme: dark; }
  :root:not([data-theme="light"]) {
    --bg:        #1D1109;   /* Dark Roast */
    --surface:   #2C1C10;   /* Roast */
    --surface2:  #35230f;
    --ink:       #F4EADE;   /* Milk Foam */
    --ink-soft:  #cbb6a2;
    --line:      #46301c;
    --accent:    #56C6E8;   /* Cyan Glow */
    --accent-ink:#0d2530;
    --accent-dim:rgba(86,198,232,0.16);
    --defer:     #F0A55A;   /* lifted tamarind for AA on dark roast */
    --defer-dim: rgba(240,165,90,0.16);
    --ok:        #6cd39a;
    --ok-dim:    rgba(108,211,154,0.16);
    --ask:       #e9c069;
    --ask-dim:   rgba(233,192,105,0.16);
    --ring-track:#3a2614;
    --shadow: 0 18px 44px -24px rgba(0,0,0,0.7);
  }
}

/* Manual override wins over the media query */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg:        #1D1109; --surface: #2C1C10; --surface2:#35230f;
  --ink:       #F4EADE; --ink-soft:#cbb6a2; --line:#46301c;
  --accent:    #56C6E8; --accent-ink:#0d2530; --accent-dim:rgba(86,198,232,0.16);
  --defer:     #F0A55A; --defer-dim:rgba(240,165,90,0.16);
  --ok:        #6cd39a; --ok-dim:rgba(108,211,154,0.16);
  --ask:       #e9c069; --ask-dim:rgba(233,192,105,0.16);
  --ring-track:#3a2614; --shadow: 0 18px 44px -24px rgba(0,0,0,0.7);
}
:root[data-theme="light"] { color-scheme: light; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(1000px 520px at 82% -10%, var(--accent-dim), transparent 60%),
    radial-gradient(760px 460px at 4% 6%, var(--defer-dim), transparent 55%);
}

h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
p { margin: 0; }
abbr { text-decoration: none; border-bottom: 1px dotted currentColor; }

.tabular, .ring__big, .logtable td, .matrix td, .matrix th { font-variant-numeric: tabular-nums; }

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

.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: 10px; font-weight: 700;
  z-index: 60; transition: top 0.18s var(--ease); text-decoration: none;
}
.skip-link:focus { top: 12px; }

a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, .seg:focus-within, .tab:focus-visible,
.deferral:focus-within {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ============ HERO ============ */
.hero {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}
.hero__bar {
  max-width: var(--wrap); margin: 0 auto; padding: 16px 20px 0;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand__mark { width: 34px; height: 34px; }
.brand__name { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.03em; }
.brand__actions { display: flex; gap: 8px; }

.hero__inner { max-width: var(--wrap); margin: 0 auto; padding: 22px 20px 30px; }
.eyebrow {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--ink-soft); font-weight: 700;
}
.hero__title {
  margin-top: 12px; font-size: clamp(1.6rem, 4.4vw, 2.5rem); font-weight: 800;
  letter-spacing: -0.03em; max-width: 20ch;
}
.hero__sub { color: var(--accent); font-weight: 700; }
.hero__lede {
  margin-top: 14px; max-width: 62ch; color: var(--ink-soft); font-size: 1.02rem;
}
.hero__lede strong { color: var(--ink); }

/* ============ buttons ============ */
.ghost, .primary {
  font: inherit; font-weight: 700; cursor: pointer;
  border-radius: var(--radius-sm); border: 1px solid var(--line);
  padding: 10px 15px; background: var(--surface); color: var(--ink);
  transition: transform 0.1s var(--ease), background 0.15s var(--ease);
}
.ghost { display: inline-flex; align-items: center; gap: 7px; }
.ghost__ico { font-size: 1.05em; }
.ghost:hover:not(:disabled), .primary:hover:not(:disabled) { background: var(--surface2); }
.ghost:active:not(:disabled), .primary:active:not(:disabled) { transform: translateY(1px); }
.ghost:disabled { opacity: 0.5; cursor: not-allowed; }
.ghost--danger { border-color: var(--defer); color: var(--defer); }
.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }

/* ============ tabs ============ */
.tabs {
  position: sticky; top: 0; z-index: 40;
  background: var(--bg); border-bottom: 1px solid var(--line);
}
.tabs__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 12px;
  display: flex; gap: 2px; overflow-x: auto;
}
.tab {
  font: inherit; font-weight: 700; cursor: pointer; white-space: nowrap;
  background: none; border: none; color: var(--ink-soft);
  padding: 14px 15px 12px; border-bottom: 3px solid transparent;
}
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.tab:hover { color: var(--ink); }

main { max-width: var(--wrap); margin: 0 auto; padding: 26px 20px 48px; }
.panel-view.is-hidden { display: none; }

.q { font-size: clamp(1.3rem, 3.2vw, 1.7rem); font-weight: 800; letter-spacing: -0.025em; }
.q__note { margin-top: 8px; color: var(--ink-soft); max-width: 66ch; }
.q__note--src { margin-top: 14px; font-size: 0.86rem; }

/* ============ fields ============ */
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label { font-weight: 700; font-size: 0.9rem; }
.field__sub { font-weight: 400; color: var(--ink-soft); }
.field--grow { flex: 1 1 100%; }
.field--inline { flex-direction: row; align-items: center; gap: 10px; }
input, select {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 10px 12px; min-height: 44px; width: 100%;
}
select { cursor: pointer; }

/* ============ calculator ============ */
.calc {
  margin-top: 20px; display: grid; gap: 22px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  align-items: start;
}
.calc__form { display: grid; gap: 14px; }
.calc__out {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}

/* ---- the eligibility ring ---- */
.ring { position: relative; width: 216px; height: 216px; }
.ring__svg { width: 100%; height: 100%; display: block; }
.ring__track { fill: none; stroke: var(--ring-track); stroke-width: 14; }
.ring__fill {
  fill: none; stroke: var(--accent); stroke-width: 14; stroke-linecap: round;
  stroke-dasharray: 515.2; stroke-dashoffset: 515.2;
  transition: stroke-dashoffset 0.6s var(--ease), stroke 0.3s var(--ease);
}
.ring__fill.is-eligible { stroke: var(--ok); }
.ring__ticks line { stroke: var(--line); stroke-width: 2; }
.ring__center {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center; gap: 2px;
}
.ring__big { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.04em; line-height: 1; }
.ring__small { font-size: 0.82rem; color: var(--ink-soft); max-width: 15ch; }
.ring__notch { fill: var(--accent); }

/* ============ verdict ============ */
.verdict { width: 100%; }
.verdict__pill {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 800;
  padding: 8px 14px; border-radius: 999px; font-size: 0.98rem;
  border: 1.5px solid currentColor;
}
.verdict__pill::before { content: ""; width: 9px; height: 9px; border-radius: 2px; background: currentColor; }
.verdict--eligible .verdict__pill { color: var(--ok); background: var(--ok-dim); }
.verdict--deferred .verdict__pill { color: var(--defer); background: var(--defer-dim); }
.verdict--ask     .verdict__pill { color: var(--ask); background: var(--ask-dim); }
.verdict--eligible .verdict__pill::before { border-radius: 999px; }
.verdict--deferred .verdict__pill::before { clip-path: polygon(50% 0, 100% 100%, 0 100%); border-radius: 0; }
.verdict--ask .verdict__pill::before { border-radius: 999px; box-shadow: inset 0 0 0 2px var(--bg); }
.verdict__line { margin-top: 8px; color: var(--ink-soft); font-size: 0.94rem; }
.verdict--big { margin-top: 22px; }
.verdict--big .verdict__pill { font-size: 1.1rem; padding: 11px 18px; }

.calc__rule {
  width: 100%; font-size: 0.86rem; color: var(--ink-soft);
  border-top: 1px dashed var(--line); padding-top: 12px;
}
.calc__rule cite { font-style: normal; font-weight: 700; color: var(--ink); }
.calc__rule a { color: var(--accent); }
.calc__actions { display: flex; gap: 8px; flex-wrap: wrap; width: 100%; }

.banner {
  margin-top: 22px; display: flex; gap: 10px; align-items: flex-start;
  background: var(--defer-dim); border: 1px solid var(--defer);
  border-radius: var(--radius); padding: 13px 16px; color: var(--ink); font-size: 0.92rem;
}
.banner__ico { color: var(--defer); font-weight: 800; }

/* ============ eligibility check ============ */
.check { margin-top: 18px; display: grid; gap: 20px; }
.check__row { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.field--num input { max-width: 100%; }
.deferrals { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin: 0; }
.deferrals legend { font-weight: 700; padding: 0 6px; }
.deferrals__grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); margin-top: 8px; }
.deferral {
  display: grid; gap: 8px; padding: 11px 12px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); background: var(--surface);
  grid-template-columns: auto 1fr; align-items: start;
}
.deferral__cb { grid-row: span 2; margin-top: 3px; width: 20px; height: 20px; min-height: 0; }
.deferral__lbl { font-size: 0.9rem; font-weight: 600; cursor: pointer; }
.deferral__date { grid-column: 2; }
.deferral__date input { padding: 7px 9px; min-height: 38px; font-size: 0.88rem; }
.deferral.is-on { border-color: var(--defer); background: var(--defer-dim); }

.reasons { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.reasons li {
  border-left: 3px solid var(--line); background: var(--surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 11px 14px;
}
.reasons li.r-defer { border-left-color: var(--defer); }
.reasons li.r-ask   { border-left-color: var(--ask); }
.reasons li.r-ok    { border-left-color: var(--ok); }
.reasons .r-text { font-size: 0.92rem; }
.reasons .r-src { margin-top: 5px; font-size: 0.8rem; color: var(--ink-soft); }
.reasons .r-src a { color: var(--accent); }
.reasons .r-src cite { font-style: normal; font-weight: 700; color: var(--ink); }

/* ============ logbook ============ */
.logform {
  margin-top: 18px; display: grid; gap: 12px; align-items: end;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.logform .primary { min-height: 44px; }
.logsummary {
  margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px;
}
.stat {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 10px 14px; min-width: 130px;
}
.stat__k { display: block; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-soft); }
.stat__v { font-size: 1.2rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.stat__v.is-eligible { color: var(--ok); }
.stat__v.is-waiting { color: var(--accent); }

.logactions { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.cardgroup { display: flex; flex-direction: column; gap: 5px; font-size: 0.8rem; font-weight: 700; }
.cardgroup select, .cardgroup input { min-height: 40px; }

.logtable-wrap { margin-top: 18px; overflow-x: auto; }
.logtable { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.logtable th, .logtable td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.logtable th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); }
.logtable__x { width: 44px; }
.rowx { background: none; border: none; color: var(--defer); cursor: pointer; font-size: 1.1rem; font-weight: 800; padding: 4px 8px; border-radius: 6px; }
.rowx:hover { background: var(--defer-dim); }
.logempty { color: var(--ink-soft); font-style: italic; }

/* donor card (screen: hidden; print: shown) */
.donorcard { display: none; }

/* ============ blood groups ============ */
.groups__controls { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.segmented { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--surface); }
.seg { position: relative; }
.seg input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.seg span { display: block; padding: 9px 16px; font-weight: 700; font-size: 0.9rem; color: var(--ink-soft); cursor: pointer; }
.seg input:checked + span { background: var(--accent); color: var(--accent-ink); }

.groups__cards { margin-top: 20px; display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.gcard { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.gcard h3 { font-size: 0.95rem; }
.gchips { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.gchip {
  font-weight: 800; font-variant-numeric: tabular-nums; font-size: 0.95rem;
  padding: 7px 12px; border-radius: 999px; border: 1.5px solid var(--accent);
  color: var(--accent); background: var(--accent-dim);
}

.matrix-wrap { margin-top: 22px; overflow-x: auto; }
.matrix { border-collapse: collapse; font-size: 0.86rem; min-width: 520px; }
.matrix th, .matrix td { border: 1px solid var(--line); padding: 8px 10px; text-align: center; font-weight: 700; }
.matrix thead th, .matrix tbody th { background: var(--surface2); }
.matrix caption { text-align: left; padding-bottom: 8px; color: var(--ink-soft); font-size: 0.86rem; }
.matrix td.yes { background: var(--accent-dim); color: var(--accent); }
.matrix td.yes::after { content: "●"; }
.matrix td.no  { color: var(--ink-soft); }
.matrix td.no::after { content: "·"; }
.matrix td.self { outline: 2px solid var(--accent); outline-offset: -2px; }

/* ============ sources ============ */
.srcfilter { margin-top: 16px; display: flex; align-items: center; gap: 10px; }
.srcfilter label { font-weight: 700; font-size: 0.9rem; }
.srcfilter select { width: auto; }
.sources { margin-top: 18px; display: grid; gap: 12px; }
.srcitem { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.srcitem__top { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.tagchip { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; }
.tag-authority { background: var(--accent-dim); color: var(--accent); }
.tag-cat { background: var(--surface2); color: var(--ink-soft); border: 1px solid var(--line); }
.tag-verbatim { background: var(--ok-dim); color: var(--ok); }
.tag-paraphrased { background: var(--ask-dim); color: var(--ask); }
.srcitem__text { margin-top: 8px; font-size: 0.94rem; }
.srcitem__quote { margin-top: 8px; font-size: 0.88rem; color: var(--ink-soft); border-left: 3px solid var(--line); padding-left: 12px; }
.srcitem__meta { margin-top: 8px; font-size: 0.8rem; color: var(--ink-soft); display: flex; flex-wrap: wrap; gap: 6px 14px; }
.srcitem__meta a { color: var(--accent); }

/* ============ footer ============ */
.foot { border-top: 1px solid var(--line); background: var(--surface); }
.foot__inner { max-width: var(--wrap); margin: 0 auto; padding: 24px 20px 34px; }
.foot__disclaimer { color: var(--ink-soft); max-width: 78ch; font-size: 0.9rem; }
.foot__disclaimer strong { color: var(--ink); }
.foot__meta { margin-top: 14px; color: var(--ink-soft); font-size: 0.82rem; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.foot__dot { opacity: 0.5; }

/* ============ toast ============ */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px);
  background: var(--ink); color: var(--bg); padding: 11px 18px; border-radius: 999px;
  font-weight: 700; font-size: 0.9rem; opacity: 0; pointer-events: none;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease); z-index: 70;
  max-width: 90vw; text-align: center;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ============ responsive ============ */
@media (max-width: 720px) {
  .calc { grid-template-columns: 1fr; }
  .groups__cards { grid-template-columns: 1fr; }
}

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

/* ============ print — donor card only ============ */
@media print {
  body { background: #fff; color: #000; }
  body::before { display: none; }
  .hero, .tabs, .foot, .toast, .logform, .logactions, .logtable-wrap,
  .banner, .q__note, .verdict, .reasons, .check, .calc, .groups__controls,
  .groups__cards, .matrix-wrap, .sources, .srcfilter { display: none !important; }
  main { padding: 0; }
  .panel-view.is-hidden { display: none !important; }
  .donorcard {
    display: block !important; border: 2px solid #000; border-radius: 12px;
    padding: 18px 22px; max-width: 420px; margin: 20px auto; page-break-inside: avoid;
  }
  .donorcard__head { font-weight: 800; font-size: 1.1rem; letter-spacing: -0.02em; border-bottom: 1px solid #000; padding-bottom: 8px; }
  .donorcard__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 14px 0; }
  .donorcard__k { display: block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: #444; }
  .donorcard__v { font-size: 1.15rem; font-weight: 800; }
  .donorcard__foot { font-size: 0.78rem; color: #333; border-top: 1px solid #000; padding-top: 8px; }
  .q { color: #000; }
}