/* ===== Tokens ===== */
:root {
  --bg: #FAF6EF;
  --surface: #FFFFFF;
  --surface-2: #F4EDE2;
  --ink: #2A2A2A;
  --ink-soft: #5C5C5C;
  --muted: #8A8A8A;
  --line: #E6DFD2;
  --accent: #7A9B76;
  --accent-ink: #FFFFFF;
  --accent-soft: #E4EEE2;
  --warm: #E8A87C;
  --warm-soft: #FBEDE0;
  --shadow-sm: 0 1px 2px rgba(60,40,20,.04), 0 2px 8px rgba(60,40,20,.05);
  --shadow-md: 0 4px 12px rgba(60,40,20,.08), 0 12px 32px rgba(60,40,20,.06);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --tap: 48px;
  --t: 220ms cubic-bezier(.2,.7,.2,1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 112.5%; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
input, select, textarea, button { font-family: inherit; }

/* Focus — visible & generous */
:focus { outline: none; }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ===== Layout ===== */
.wrap { width: min(960px, 100% - 2rem); margin-inline: auto; }

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
  backdrop-filter: saturate(140%);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; padding-block: .5rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  text-decoration: none; color: var(--ink);
  font-weight: 700; letter-spacing: .01em;
}
.brand-mark {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 50%;
  font-size: 1.25rem;
}
.brand-name { font-size: 1.15rem; }

.back-btn {
  min-height: var(--tap); min-width: var(--tap);
  padding: .5rem 1rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  transition: background var(--t), transform var(--t);
}
.back-btn:hover { background: var(--accent-soft); }
.back-btn:active { transform: scale(.97); }

.header-actions { display: flex; align-items: center; gap: .5rem; }
.header-support {
  display: inline-flex; align-items: center;
  min-height: var(--tap);
  padding: .5rem .9rem;
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--t), color var(--t);
}
.header-support:hover { background: var(--accent); color: #fff; }
@media (max-width: 480px) {
  .header-support-text { display: none; }
}

main { padding-block: 2rem 4rem; }
main:focus { outline: none; }

/* ===== Typography ===== */
.page-title {
  font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.4rem);
  margin: .25rem 0 .5rem;
  letter-spacing: -.01em;
}
.lede {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 60ch;
  margin: 0 0 1.5rem;
}
.section-heading {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
  margin: 2rem 0 .75rem;
}
code {
  background: var(--surface-2);
  padding: .1em .4em;
  border-radius: 6px;
  font-size: .95em;
}
kbd {
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: .05em .45em;
  font-size: .85em;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

/* ===== Views & transitions ===== */
.view { display: none; }
.view-active {
  display: block;
  animation: fadeUp var(--t) ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .view-active { animation: none; }
  * { transition: none !important; }
}

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.card {
  display: flex; flex-direction: column; gap: .35rem;
  align-items: flex-start; text-align: left;
  padding: 1.25rem 1.25rem 1.1rem;
  min-height: 132px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t), background var(--t);
}
a.card:hover, a.card:focus { color: inherit; text-decoration: none; }
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #D8CFBE;
}
.card:active { transform: translateY(0); }
.card-icon {
  font-size: 1.6rem;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border-radius: 12px;
  margin-bottom: .35rem;
}
.card-title { font-weight: 700; font-size: 1.1rem; }
.card-sub { color: var(--ink-soft); font-size: .95rem; }

/* ===== Forms ===== */
.tool {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.tool fieldset {
  border: none; padding: 0; margin: 0 0 1rem;
}
.tool fieldset + fieldset { border-top: 1px dashed var(--line); padding-top: 1rem; }
.tool legend {
  font-weight: 700; font-size: .95rem;
  color: var(--ink-soft);
  text-transform: uppercase; letter-spacing: .1em;
  margin-bottom: .5rem;
}
.field {
  display: grid;
  grid-template-columns: 1fr;
  gap: .35rem;
  margin-bottom: .9rem;
}
.field-large { display: block; }
.field label {
  font-weight: 600;
  font-size: 1rem;
}
.field .hint {
  color: var(--muted);
  font-size: .9rem;
}
.field input[type="text"],
.field input[type="number"],
.field select {
  min-height: var(--tap);
  width: 100%;
  padding: .6rem .85rem;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  font-size: 1.05rem;
  transition: border-color var(--t), box-shadow var(--t);
}
.field input:focus,
.field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(122,155,118,.18);
}
.field-large input { font-size: 1.5rem; padding: .8rem 1rem; }

@media (min-width: 640px) {
  .tool fieldset { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 1.25rem; }
  .tool legend { grid-column: 1 / -1; }
}

/* ===== Result panel ===== */
.result {
  margin-top: 1.25rem;
  background: var(--accent-soft);
  border: 1px solid #CDDCC8;
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  font-size: 1.05rem;
}
.result h3 {
  margin: 0 0 .25rem;
  color: var(--accent);
  font-size: .9rem;
  text-transform: uppercase;
  letter-spacing: .14em;
}
.result .big {
  font-size: clamp(1.6rem, 1rem + 2vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.2;
}
.result ul { margin: .5rem 0 0; padding-left: 1.2rem; }
.result li { margin: .15rem 0; }
.result.warn { background: var(--warm-soft); border-color: #F1D6BD; }
.result.warn h3 { color: #B5612C; }

.note {
  color: var(--muted);
  font-size: .92rem;
  margin-top: 1rem;
}

/* ===== Convert tool ===== */
.tool-convert {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: end;
}
.convert-arrow {
  text-align: center;
  font-size: 1.5rem;
  color: var(--muted);
}
@media (min-width: 640px) {
  .tool-convert {
    grid-template-columns: 1fr auto 1fr;
    align-items: end;
  }
}
.quick-row {
  margin-top: 1rem;
  display: flex; flex-wrap: wrap; gap: .5rem;
  align-items: center;
}
.quick-label { color: var(--muted); margin-right: .25rem; }
.chip {
  min-height: 40px;
  padding: .35rem .85rem;
  background: var(--surface);
  border: 1.5px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  transition: background var(--t), border-color var(--t), color var(--t);
}
.chip:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* ===== Reference grids ===== */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: .9rem;
}
.ref-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow-sm);
}
.ref-card h3 {
  margin: 0 0 .25rem;
  font-size: 1.1rem;
}
.ref-card .pill {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  padding: .15rem .6rem;
  border-radius: 999px;
  font-size: .85rem;
  margin-bottom: .5rem;
  letter-spacing: .04em;
}
.ref-card p { margin: .25rem 0; }
.ref-card .uses {
  color: var(--ink-soft);
}
.ref-card.alt { border-left-color: var(--warm); }
.ref-card.alt .pill { background: var(--warm-soft); color: #B5612C; }

/* ===== Care symbols ===== */
.care-groups { display: grid; gap: 1rem; }
.care-group {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-sm);
}
.care-group h3 {
  margin: 0 0 .75rem;
  font-size: 1.15rem;
  color: var(--accent);
}
.care-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: .35rem;
}
@media (min-width: 540px) {
  .care-list { grid-template-columns: 1fr 1fr; }
}
.care-row {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: .75rem;
  align-items: center;
  padding: .5rem 0;
  border-bottom: 1px dashed var(--line);
}
.care-row:last-child { border-bottom: 0; }
.care-sym {
  width: 3rem;
  height: 3rem;
  display: block;
}
.care-text { color: var(--ink-soft); line-height: 1.35; }
.care-text strong { color: var(--ink); font-weight: 600; margin-right: .15rem; }

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 1.5rem 0;
  color: var(--muted);
  font-size: .9rem;
  text-align: center;
}
.site-footer p { margin: .25rem 0; }
.site-footer .credits { font-size: .8rem; }
.site-footer a { color: var(--muted); }

.link-btn, .footer-link {
  background: none;
  border: 0;
  padding: 0;
  margin: 0 0 0 .5rem;
  color: inherit;
  text-decoration: underline;
  cursor: pointer;
  font: inherit;
}
.link-btn:hover, .footer-link:hover { color: var(--accent); }

.prose h2 { margin: 1.5rem 0 .5rem; font-size: 1.2rem; color: var(--accent); }
.prose ul { margin: .5rem 0 1rem 1.25rem; padding: 0; }
.prose li { margin: .35rem 0; }
.prose code { background: var(--accent-soft); padding: .1rem .35rem; border-radius: 4px; font-size: .92em; }
.prose p { margin: .5rem 0; line-height: 1.55; }

/* ===== Affiliate "where to buy" ===== */
.buy-row {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.buy-label {
  margin: 0 0 .6rem;
  font-size: .95rem;
  color: var(--ink-soft);
}
.buy-tag {
  display: inline-block;
  margin-left: .35rem;
  padding: .05rem .45rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  vertical-align: middle;
}
.buy-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.buy-chip {
  display: inline-block;
  padding: .5rem 1rem;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid transparent;
  color: var(--ink);
  text-decoration: none;
  min-height: 2.5rem;
  line-height: 1.5;
}
.buy-chip:hover { border-color: var(--accent); background: #EFE7D6; }

.disclosure {
  margin: .75rem 0 0;
  font-size: .78rem;
  color: var(--muted);
  font-style: italic;
}

/* ===== Consent banner ===== */
.consent-banner {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  max-width: 34rem;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  box-shadow: 0 6px 24px rgba(0,0,0,.18);
  z-index: 100;
  font-size: .95rem;
  color: var(--ink-soft);
}
.consent-text { margin: 0 0 .75rem; }
.consent-actions { display: flex; gap: .5rem; justify-content: flex-end; }
.consent-btn {
  min-height: 2.5rem;
  padding: .4rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}
.consent-btn:hover { background: var(--accent-soft); }
.consent-btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.consent-btn-primary:hover { background: #688967; border-color: #688967; }

/* ===== Print ===== */
@media print {
  .site-header, .site-footer, .back-btn { display: none !important; }
  .view { display: block !important; }
  .card { break-inside: avoid; box-shadow: none; }
}