/* ═══════════════════════════════════════════════════════════════
   Wzornik — design system 2026
   Fluid typography · light/dark · glass surfaces · micro-motion
   ═══════════════════════════════════════════════════════════════ */

:root {
  --font-sans: "Inter var", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;

  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 24px;

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 1rem;
  --space-4: 1.5rem;  --space-5: 2.5rem; --space-6: 4rem;

  --fs-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --fs-s:  clamp(0.875rem, 0.85rem + 0.2vw, 0.9375rem);
  --fs-m:  clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --fs-l:  clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --fs-xl: clamp(1.6rem, 1.4rem + 1vw, 2.25rem);
  --fs-2xl: clamp(2.1rem, 1.7rem + 2vw, 3.4rem);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  /* Light */
  --bg: #f7f8fc;
  --bg-raised: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --text: #171a22;
  --text-soft: #555c6e;
  --text-faint: #8a90a2;
  --border: rgba(23, 26, 34, 0.09);
  --border-strong: rgba(23, 26, 34, 0.18);
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.1);
  --accent-contrast: #ffffff;
  --accent-2: #0d9488;
  --success: #0f8a4b;
  --danger: #d43d51;
  --shadow-s: 0 1px 2px rgba(15, 18, 30, 0.05), 0 4px 16px rgba(15, 18, 30, 0.05);
  --shadow-m: 0 2px 8px rgba(15, 18, 30, 0.07), 0 16px 40px rgba(15, 18, 30, 0.09);
  --glow: radial-gradient(60% 50% at 50% 0%, rgba(79, 70, 229, 0.09), transparent 70%);
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #0b0e14;
  --bg-raised: #131722;
  --bg-glass: rgba(19, 23, 34, 0.72);
  --text: #e8eaf2;
  --text-soft: #a3aabd;
  --text-faint: #6b7284;
  --border: rgba(232, 234, 242, 0.09);
  --border-strong: rgba(232, 234, 242, 0.2);
  --accent: #8b85f7;
  --accent-soft: rgba(139, 133, 247, 0.14);
  --accent-contrast: #0b0e14;
  --accent-2: #2dd4bf;
  --success: #34d399;
  --danger: #fb7185;
  --shadow-s: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-m: 0 2px 8px rgba(0, 0, 0, 0.35), 0 16px 40px rgba(0, 0, 0, 0.4);
  --glow: radial-gradient(60% 50% at 50% 0%, rgba(139, 133, 247, 0.13), transparent 70%);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --bg: #0b0e14;
    --bg-raised: #131722;
    --bg-glass: rgba(19, 23, 34, 0.72);
    --text: #e8eaf2;
    --text-soft: #a3aabd;
    --text-faint: #6b7284;
    --border: rgba(232, 234, 242, 0.09);
    --border-strong: rgba(232, 234, 242, 0.2);
    --accent: #8b85f7;
    --accent-soft: rgba(139, 133, 247, 0.14);
    --accent-contrast: #0b0e14;
    --accent-2: #2dd4bf;
    --success: #34d399;
    --danger: #fb7185;
    --shadow-s: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-m: 0 2px 8px rgba(0, 0, 0, 0.35), 0 16px 40px rgba(0, 0, 0, 0.4);
    --glow: radial-gradient(60% 50% at 50% 0%, rgba(139, 133, 247, 0.13), transparent 70%);
    color-scheme: dark;
  }
}

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-m);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image: var(--glow);
  background-repeat: no-repeat;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s, color 0.3s;
}

main { flex: 1; padding-block: var(--space-5) var(--space-6); }

img, svg { max-width: 100%; display: block; }
input, button { font: inherit; color: inherit; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3 { line-height: 1.15; text-wrap: balance; letter-spacing: -0.02em; }
h1 { font-size: var(--fs-2xl); font-weight: 800; }
h2 { font-size: var(--fs-xl); font-weight: 700; }
h3 { font-size: var(--fs-l); font-weight: 650; }

p { text-wrap: pretty; }

.container { width: min(1120px, 100% - 2.5rem); margin-inline: auto; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--accent-contrast);
  padding: var(--space-2) var(--space-3); border-radius: 0 0 var(--radius-s) 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

::selection { background: var(--accent-soft); }

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex; align-items: center; gap: var(--space-4);
  padding-block: 0.7rem;
}

.brand { display: flex; align-items: center; gap: 0.6rem; color: var(--text); font-weight: 750; font-size: 1.1rem; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: grid; place-items: center;
  width: 2rem; height: 2rem; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 1.05rem; font-weight: 700;
  box-shadow: var(--shadow-s);
}

.site-nav { display: flex; gap: var(--space-3); margin-inline-start: auto; }
.site-nav a { color: var(--text-soft); font-size: var(--fs-s); font-weight: 550; padding: 0.35rem 0.6rem; border-radius: 8px; }
.site-nav a:hover { color: var(--text); background: var(--accent-soft); text-decoration: none; }

.header-actions { display: flex; gap: var(--space-2); }

.btn-icon {
  display: grid; place-items: center;
  width: 2.25rem; height: 2.25rem;
  border: 1px solid var(--border); border-radius: 10px;
  background: transparent; cursor: pointer; color: var(--text-soft);
  transition: border-color 0.2s, color 0.2s, transform 0.15s var(--ease-out);
}
.btn-icon:hover { color: var(--text); border-color: var(--border-strong); transform: translateY(-1px); }

[data-theme="light"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: none; }
@media (prefers-color-scheme: dark) { [data-theme="auto"] .icon-moon { display: none; } }
@media (prefers-color-scheme: light) { [data-theme="auto"] .icon-sun { display: none; } }

/* ── Hero (homepage) ──────────────────────────────────────── */
.hero { text-align: center; padding-block: var(--space-5) var(--space-5); }
.hero .eyebrow { margin-bottom: var(--space-3); }
.hero h1 { max-width: 22ch; margin-inline: auto; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { max-width: 56ch; margin: var(--space-3) auto 0; }

.hero-search {
  display: flex; align-items: center; gap: var(--space-2);
  width: min(560px, 100%);
  margin: var(--space-4) auto 0;
  padding: 0.55rem 0.55rem 0.55rem 1.1rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-m);
  color: var(--text-faint);
  cursor: text;
  transition: border-color 0.2s, transform 0.2s var(--ease-out);
}
.hero-search:hover { border-color: var(--accent); transform: translateY(-1px); }
.hero-search span { flex: 1; text-align: left; font-size: var(--fs-s); }
.hero-search kbd {
  font-family: var(--font-mono); font-size: 0.75rem;
  padding: 0.2rem 0.5rem; border: 1px solid var(--border); border-radius: 7px;
  background: var(--bg); color: var(--text-faint);
}

.hero-stats { display: flex; justify-content: center; gap: var(--space-5); margin-top: var(--space-5); flex-wrap: wrap; }
.stat { text-align: center; }
.stat b { display: block; font-size: var(--fs-xl); font-weight: 800; letter-spacing: -0.02em; }
.stat span { font-size: var(--fs-xs); color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.08em; }

/* ── Cards & grids ────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-3); }
.cards-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.cats-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: var(--space-4);
  box-shadow: var(--shadow-s);
}

.card-link {
  display: flex; flex-direction: column; gap: var(--space-2);
  color: var(--text);
  transition: transform 0.2s var(--ease-out), border-color 0.2s, box-shadow 0.2s;
}
.card-link:hover {
  text-decoration: none;
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow-m);
}

.card-formula {
  display: grid; place-items: center;
  min-height: 4.2rem;
  padding: var(--space-2);
  background: var(--accent-soft);
  border-radius: var(--radius-s);
  font-size: 0.95rem;
  overflow-x: auto;
  overflow-y: hidden;
}
.card-formula .katex-display { margin: 0; }
.card-title { font-weight: 650; font-size: var(--fs-m); }
.card-desc { font-size: var(--fs-s); color: var(--text-soft); }

.cat-card { gap: var(--space-2); }
.cat-icon { font-size: 1.8rem; line-height: 1; }
.cat-count { font-size: var(--fs-xs); color: var(--text-faint); }

/* ── Page headers, breadcrumbs ────────────────────────────── */
.page-header { margin-bottom: var(--space-5); max-width: 70ch; }
.page-header .lead { margin-top: var(--space-2); }

.eyebrow {
  font-size: var(--fs-xs); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent);
}

.lead { font-size: var(--fs-l); color: var(--text-soft); font-weight: 400; line-height: 1.5; }
.muted { color: var(--text-faint); font-size: var(--fs-s); }

.breadcrumbs { margin-bottom: var(--space-4); font-size: var(--fs-s); }
.breadcrumbs ol { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: var(--space-1); }
.breadcrumbs li:not(:last-child)::after { content: "›"; margin-inline: 0.5rem; color: var(--text-faint); }
.breadcrumbs a { color: var(--text-soft); }
.breadcrumbs [aria-current] { color: var(--text); font-weight: 550; }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-3); }
.section-head + .grid { margin-bottom: var(--space-5); }

/* ── Formula page ─────────────────────────────────────────── */
.formula-page { display: flex; flex-direction: column; gap: var(--space-4); }
.formula-header h1 { margin-block: var(--space-1) var(--space-2); }
.formula-header .lead { max-width: 65ch; }

.formula-hero { text-align: center; padding-block: var(--space-5); }
.formula-main { font-size: clamp(1.3rem, 1rem + 1.5vw, 2rem); overflow-x: auto; overflow-y: hidden; padding: 0.35rem var(--space-2); }
.formula-main .katex-display { margin: 0; }

.var-legend {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-4); padding-top: var(--space-3);
  border-top: 1px dashed var(--border-strong);
  font-size: var(--fs-s);
}
.var-item { display: flex; gap: 0.5rem; align-items: baseline; }
.var-item dt { font-weight: 650; }
.var-item dd { color: var(--text-soft); }
.unit { color: var(--text-faint); font-size: 0.85em; }

/* ── Calculator ───────────────────────────────────────────── */
.calculator { border: 1px solid var(--border-strong); position: relative; overflow: hidden; }
.calculator::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.calc-head h2 { margin-bottom: var(--space-1); }
.calc-head p { color: var(--text-soft); font-size: var(--fs-s); }

.calc-targets { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-block: var(--space-3); }

.chip {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: transparent; cursor: pointer;
  font-size: var(--fs-s); font-weight: 550; color: var(--text-soft);
  transition: all 0.18s var(--ease-out);
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip[aria-selected="true"] {
  background: var(--accent); border-color: var(--accent);
  color: var(--accent-contrast);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 35%, transparent);
}

.calc-variant-formula {
  text-align: center; padding: var(--space-3);
  background: var(--accent-soft); border-radius: var(--radius-s);
  margin-bottom: var(--space-3);
  font-size: 1.15rem; overflow-x: auto; overflow-y: hidden;
}
.calc-variant-formula:empty { display: none; }
.calc-variant-formula .katex-display { margin: 0; }

.calc-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-3); }

.field label { display: flex; align-items: baseline; gap: 0.45rem; margin-bottom: 0.4rem; font-size: var(--fs-s); }
.field-sym { font-weight: 700; }
.field-name { color: var(--text-soft); }

.field input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-s);
  background: var(--bg);
  transition: border-color 0.15s, box-shadow 0.15s;
  font-variant-numeric: tabular-nums;
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.field.is-target input {
  background: var(--accent-soft);
  border-style: dashed;
  color: var(--text-faint);
  pointer-events: none;
}
.field.is-target .field-name::after { content: " ← obliczane"; color: var(--accent); font-weight: 650; }

.calc-result[hidden] { display: none; }

.calc-result {
  display: flex; align-items: baseline; gap: var(--space-3);
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(135deg, var(--accent-soft), transparent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-s);
  animation: pop-in 0.3s var(--ease-out);
}
.calc-result-label { font-size: var(--fs-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); }
.calc-result-value { font-size: var(--fs-xl); font-weight: 800; font-variant-numeric: tabular-nums; word-break: break-all; }

@keyframes pop-in { from { opacity: 0; transform: translateY(6px) scale(0.98); } }

.calc-error { margin-top: var(--space-3); color: var(--danger); font-size: var(--fs-s); font-weight: 550; }

.btn-ghost {
  margin-top: var(--space-3);
  padding: 0.5rem 1rem;
  background: transparent; border: 1px solid var(--border-strong);
  border-radius: var(--radius-s); cursor: pointer;
  font-size: var(--fs-s); color: var(--text-soft);
  transition: all 0.15s;
}
.btn-ghost:hover { border-color: var(--danger); color: var(--danger); }

/* ── Variant list ─────────────────────────────────────────── */
.variant-list { list-style: none; padding: 0; margin-top: var(--space-3); display: flex; flex-direction: column; }
.variant-list li {
  display: flex; align-items: center; gap: var(--space-4);
  padding-block: var(--space-3);
  flex-wrap: wrap;
}
.variant-list li + li { border-top: 1px solid var(--border); }
.variant-target {
  flex: 0 0 10rem;
  font-size: var(--fs-s); font-weight: 650; color: var(--text-soft);
}
.variant-latex { flex: 1; overflow-x: auto; overflow-y: hidden; padding-block: 0.35rem; }
.variant-latex .katex-display { margin: 0; text-align: left; }

/* ── Prose ────────────────────────────────────────────────── */
.prose { line-height: 1.75; }
.prose h2 { margin-block: var(--space-3) var(--space-2); font-size: var(--fs-l); }
.prose h3 { margin-block: var(--space-3) var(--space-2); font-size: var(--fs-m); }
.prose p + p { margin-top: var(--space-3); }
.prose ul, .prose ol { padding-inline-start: 1.4rem; margin-block: var(--space-2); }
.prose li + li { margin-top: var(--space-1); }
.prose strong { font-weight: 650; }

/* ── Search overlay ───────────────────────────────────────── */
.search-overlay[hidden] { display: none; }

.search-overlay {
  position: fixed; inset: 0; z-index: 90;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: grid; place-items: start center;
  padding: min(14vh, 8rem) 1.25rem var(--space-4);
  animation: fade-in 0.15s ease-out;
}
@keyframes fade-in { from { opacity: 0; } }

.search-panel {
  width: min(640px, 100%);
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-m);
  overflow: hidden;
  animation: pop-in 0.2s var(--ease-out);
}

.search-input-wrap {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-3);
  border-bottom: 1px solid var(--border);
  color: var(--text-faint);
}
.search-input-wrap input {
  flex: 1; border: none; background: none; font-size: var(--fs-l); color: var(--text);
}
.search-input-wrap input:focus { outline: none; }
.search-input-wrap kbd {
  font-family: var(--font-mono); font-size: 0.7rem;
  padding: 0.15rem 0.45rem; border: 1px solid var(--border); border-radius: 6px;
}

.search-results { list-style: none; margin: 0; padding: var(--space-2); max-height: min(55vh, 480px); overflow-y: auto; }
.search-results:empty { padding: 0; }

.search-results a {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 0.65rem var(--space-3);
  border-radius: var(--radius-s);
  color: var(--text);
}
.search-results a:hover, .search-results li.is-active a { background: var(--accent-soft); text-decoration: none; }
.search-result-title { font-weight: 600; font-size: var(--fs-s); }
.search-result-cat { margin-inline-start: auto; font-size: var(--fs-xs); color: var(--text-faint); white-space: nowrap; }
.search-hint { padding: var(--space-3); font-size: var(--fs-s); color: var(--text-faint); text-align: center; }
.search-hint:empty, .search-hint[hidden] { display: none; }

/* ── Wesprzyj nas (buycoffee.to) ──────────────────────────── */
.support-cta { margin-top: var(--space-6); }
.support-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-s);
}
.support-text { flex: 1; }
.support-title { font-weight: 700; margin-bottom: var(--space-1); }
.support-text p:not(.support-title) { font-size: var(--fs-s); color: var(--text-soft); }
.coffee-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  padding: 0.7rem 1.3rem;
  background: #ffdd00;
  color: #0d0c22;
  border-radius: var(--radius-s);
  font-weight: 700;
  font-size: var(--fs-s);
  transition: transform 0.15s var(--ease-out), box-shadow 0.15s var(--ease-out);
}
.coffee-button:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-s); }

@media (max-width: 640px) {
  .support-inner { flex-direction: column; text-align: center; }
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--border); padding-block: var(--space-5); margin-top: var(--space-6); }
.footer-inner { display: flex; flex-direction: column; gap: var(--space-2); font-size: var(--fs-s); color: var(--text-soft); }
.footer-inner nav { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.footer-meta { color: var(--text-faint); font-size: var(--fs-xs); }

/* ── Przeliczniki i wybór jednostki ───────────────────────── */
.select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-s);
  color: var(--text);
  font-size: var(--fs-m);
  font-family: inherit;
  cursor: pointer;
}
.select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.unit-picker {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  font-size: var(--fs-s);
  color: var(--text-soft);
}
.unit-picker .select { width: auto; font-size: var(--fs-s); padding: 0.35rem 0.6rem; }

.conv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto 1fr;
  gap: var(--space-3);
  align-items: end;
}
.conv-swap { margin-bottom: 0.35rem; }

@media (max-width: 640px) {
  .conv-grid { grid-template-columns: 1fr; }
  .conv-swap { justify-self: center; margin-bottom: 0; transform: rotate(90deg); }
}

/* ── Cookies ──────────────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  inset-inline: var(--space-3);
  bottom: var(--space-3);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  max-width: 720px;
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-m);
  font-size: var(--fs-s);
  color: var(--text-soft);
}
.cookie-banner[hidden] { display: none; }
.cookie-banner p { margin: 0; }
.cookie-accept {
  flex-shrink: 0;
  padding: 0.5rem 1.1rem;
  background: var(--accent);
  color: var(--accent-contrast);
  border: none;
  border-radius: var(--radius-s);
  font-size: var(--fs-s);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s var(--ease-out), opacity 0.15s var(--ease-out);
}
.cookie-accept:hover { opacity: 0.9; transform: translateY(-1px); }

/* ── Motion & responsive ──────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

@media (max-width: 640px) {
  .site-nav { display: none; }
  .cookie-banner { flex-direction: column; align-items: stretch; text-align: center; }
  .variant-target { flex-basis: 100%; }
  .hero-stats { gap: var(--space-4); }
}