/* ==========================================================================
   Buck - shared stylesheet
   Brand: dark, green-tinted near-black surfaces, numismatic motif.
   Display font: Gabarito. Body font: Hanken Grotesk. No build step, no JS.
   ========================================================================== */

:root {
  /* Core brand palette */
  --bg:            #0C0F0E; /* slightly green-tinted near black */
  --bg-deep:       #080B0A; /* deeper section base */
  --surface:       #111615; /* near-black card surface */
  --surface-2:     #161C1A;
  --surface-3:     #1C2421;
  --ink:           #04130B; /* ink-on-green text */

  --green:         #00C566;
  --green-bright:  #28E07A;
  --green-dim:     #0E7A45;

  --text:          #FFFFFF;
  --text-2:        #AEB8B3; /* muted grey, faintly green */
  --text-3:        #717C77;

  --border:        rgba(255, 255, 255, 0.08);
  --border-2:      rgba(255, 255, 255, 0.12);
  --border-green:  rgba(40, 224, 122, 0.28);

  --glow:          rgba(0, 197, 102, 0.45);
  --glow-soft:     rgba(0, 197, 102, 0.16);

  /* Type */
  --font-display: "Gabarito", system-ui, sans-serif;
  --font-body:    "Hanken Grotesk", system-ui, sans-serif;

  /* Rhythm */
  --container: 1140px;
  --reading:   none;
  --radius:    20px;
  --radius-sm: 12px;
  --radius-lg: 28px;

  --header-h: 72px;

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

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Ambient backdrop: layered green glow + fine grain, behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 50% at 78% -8%, rgba(40, 224, 122, 0.12), transparent 60%),
    radial-gradient(45% 40% at 6% 4%, rgba(0, 197, 102, 0.09), transparent 55%),
    var(--bg);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }

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

:focus-visible {
  outline: 2px solid var(--green-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ----------------------------------------------------------- Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  color: var(--text);
}

p { margin: 0 0 1.1em; }
strong { font-weight: 700; color: #EAF2EE; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-bright);
  padding: 0.45em 0.9em;
  border: 1px solid var(--border-green);
  border-radius: 999px;
  background: var(--glow-soft);
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green-bright);
  box-shadow: 0 0 0 4px rgba(40, 224, 122, 0.18);
}

/* ------------------------------------------------------------- Layout */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.section { padding-block: clamp(64px, 9vw, 120px); }

.skip-link {
  position: absolute;
  left: 16px; top: -120px;
  z-index: 200;
  background: var(--green);
  color: var(--ink);
  font-weight: 700;
  padding: 12px 18px;
  border-radius: 10px;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 16px; text-decoration: none; }

/* ------------------------------------------------------------- Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(12, 15, 14, 0.72);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}
.brand:hover { text-decoration: none; }
.brand-mark { width: 32px; height: 32px; flex: none; display: block; }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 30px);
}
.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px; /* full-height tap target; adds no horizontal width */
  color: var(--text-2);
  font-weight: 500;
  font-size: 0.98rem;
}
.nav a:hover { color: var(--text); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--green-bright); }

/* ------------------------------------------------------------ Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  padding: 0.95em 1.5em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s var(--ease), background 0.2s var(--ease),
              border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.btn-primary {
  background: var(--green);
  color: var(--ink);
  box-shadow: 0 10px 30px -10px var(--glow);
}
.btn-primary:hover {
  background: var(--green-bright);
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: 0 16px 40px -12px var(--glow);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-2);
}
.btn-ghost:hover {
  border-color: var(--border-green);
  background: var(--glow-soft);
  text-decoration: none;
  transform: translateY(-2px);
}
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* --------------------------------------------------------------- Hero */
.hero {
  position: relative;
  padding-block: clamp(56px, 8vw, 104px) clamp(56px, 8vw, 110px);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
}
.hero-copy { max-width: 640px; }
.hero h1 {
  font-size: clamp(2.6rem, 6.2vw, 4.6rem);
  font-weight: 800;
  margin-top: 0.5em;
  margin-bottom: 0.32em;
}
.hero h1 .accent {
  color: var(--green-bright);
  position: relative;
  white-space: nowrap;
}
.hero-lede {
  font-size: clamp(1.08rem, 1.8vw, 1.32rem);
  color: var(--text-2);
  max-width: 34em;
  margin-bottom: 1.8em;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.hero-note {
  margin-top: 1.5em;
  font-size: 0.92rem;
  color: var(--text-3);
}

/* Staggered entrance */
.reveal { opacity: 0; transform: translateY(18px); animation: rise 0.8s var(--ease) forwards; }
.reveal.d1 { animation-delay: 0.06s; }
.reveal.d2 { animation-delay: 0.14s; }
.reveal.d3 { animation-delay: 0.22s; }
.reveal.d4 { animation-delay: 0.30s; }
.reveal.d5 { animation-delay: 0.40s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* Hero scan-result mock card */
.scan-wrap { position: relative; display: flex; justify-content: center; }
.scan-wrap::before {
  content: "";
  position: absolute;
  inset: -12% -6% -6%;
  background: radial-gradient(50% 50% at 50% 38%, var(--glow), transparent 70%);
  filter: blur(8px);
  z-index: 0;
}
.scan-card {
  position: relative;
  z-index: 1;
  width: min(380px, 100%);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.8);
}
.scan-media {
  position: relative;
  height: 188px;
  border-radius: 18px;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(40, 224, 122, 0.18), transparent 60%),
    repeating-radial-gradient(circle at 50% 46%, rgba(255,255,255,0.05) 0 2px, transparent 2px 9px),
    var(--surface-3);
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
}
.scan-coin {
  width: 116px; height: 116px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 32%, var(--green-bright), var(--green) 52%, var(--green-dim) 100%);
  box-shadow:
    inset 0 2px 6px rgba(255,255,255,0.35),
    inset 0 -8px 18px rgba(0,0,0,0.45),
    0 12px 30px -10px var(--glow);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 2.6rem;
  color: var(--ink);
  letter-spacing: -0.04em;
}
.scan-tag {
  position: absolute;
  top: 12px; left: 12px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--green-bright);
  background: rgba(8, 11, 10, 0.7);
  border: 1px solid var(--border-green);
  padding: 5px 10px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.scan-body { padding: 16px 6px 6px; }
.scan-body h3 {
  font-size: 1.22rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.scan-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  margin: 0 0 16px;
  padding: 0;
}
.scan-specs div { display: flex; flex-direction: column; gap: 1px; }
.scan-specs dt {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}
.scan-specs dd { margin: 0; font-weight: 600; font-size: 0.98rem; color: var(--text); }
.value-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 15px;
  border-radius: 14px;
  background: var(--glow-soft);
  border: 1px solid var(--border-green);
  font-weight: 600;
  color: var(--green-bright);
}
.value-status .pulse {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--green-bright);
  box-shadow: 0 0 0 0 rgba(40, 224, 122, 0.6);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(40,224,122,0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(40,224,122,0); }
  100% { box-shadow: 0 0 0 0 rgba(40,224,122,0); }
}

/* ------------------------------------------------------- Feature grid */
.section-head { max-width: 640px; margin-bottom: clamp(32px, 5vw, 56px); }
.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.85rem);
  font-weight: 800;
}
.section-head p { color: var(--text-2); font-size: 1.1rem; margin-bottom: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(16px, 2vw, 22px);
}
.card {
  background: linear-gradient(180deg, var(--surface), var(--bg-deep));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(24px, 3vw, 32px);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-green); }
.card .ic {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 13px;
  background: var(--glow-soft);
  border: 1px solid var(--border-green);
  color: var(--green-bright);
  margin-bottom: 18px;
}
.card .ic svg { width: 24px; height: 24px; }
.card h3 { font-size: 1.28rem; font-weight: 700; margin-bottom: 0.4em; }
.card p { color: var(--text-2); font-size: 0.99rem; margin-bottom: 0; }

/* ---------------------------------------------------------- Trust band */
.trust {
  position: relative;
  border-block: 1px solid var(--border);
  background:
    radial-gradient(70% 120% at 50% 0%, rgba(0,197,102,0.10), transparent 60%),
    var(--bg-deep);
}
.trust-inner {
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
}
.trust .eyebrow { margin-bottom: 22px; }
.trust h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 0.55em;
}
.trust h2 .accent { color: var(--green-bright); }
.trust p { color: var(--text-2); font-size: 1.12rem; }
.trust p:last-child { margin-bottom: 0; }

/* CTA panel */
.cta {
  margin-top: clamp(20px, 4vw, 40px);
  background:
    radial-gradient(80% 140% at 80% 0%, rgba(40,224,122,0.18), transparent 60%),
    linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-green);
  border-radius: var(--radius-lg);
  padding: clamp(32px, 5vw, 56px);
  text-align: center;
}
.cta h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 800; }
.cta p { color: var(--text-2); max-width: 44ch; margin-inline: auto; }
.cta .hero-actions { justify-content: center; margin-top: 1.6em; }

/* ------------------------------------------------------------- Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
  padding-block: clamp(48px, 6vw, 72px) 36px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  align-items: start;
}
.footer-brand { max-width: 360px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { color: var(--text-2); font-size: 0.98rem; margin-bottom: 0; }
.footer-nav {
  display: flex;
  gap: 64px;
  justify-content: flex-end;
  flex-wrap: wrap;
}
.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-col a { color: var(--text-2); font-weight: 500; }
.footer-col a[href^="mailto:"] { overflow-wrap: anywhere; } /* long emails never overflow */
.footer-col a:hover { color: var(--green-bright); }

.footer-bottom {
  margin-top: clamp(36px, 5vw, 56px);
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  align-items: center;
  color: var(--text-3);
  font-size: 0.86rem;
}
.footer-bottom .placeholder { color: var(--text-3); }
.footer-bottom code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--text-2);
  background: var(--surface-2);
  padding: 1px 7px;
  border-radius: 6px;
  font-size: 0.82em;
}

/* ===================================================== Legal documents */
.legal-hero {
  padding-block: clamp(48px, 7vw, 84px) clamp(28px, 4vw, 44px);
  border-bottom: 1px solid var(--border);
  background: radial-gradient(60% 120% at 12% 0%, rgba(0,197,102,0.10), transparent 60%);
}
.legal-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
}
.legal-hero .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  color: var(--text-3);
  font-size: 0.92rem;
  margin-top: 14px;
}
.legal-hero .meta span { white-space: nowrap; } /* keep "label: date" intact */
.legal-hero .meta strong { color: var(--text-2); font-weight: 600; }
.legal-hero .lede {
  color: var(--text-2);
  font-size: 1.1rem;
  max-width: 62ch;
  margin-top: 18px;
  margin-bottom: 0;
}

.legal-layout {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
  padding-block: clamp(40px, 6vw, 72px);
}

/* Table of contents */
.toc {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 6px 10px;
}
.toc > summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 14px 16px 10px;
}
.toc > summary::-webkit-details-marker { display: none; }
.toc nav { max-height: calc(100vh - var(--header-h) - 110px); overflow-y: auto; }
.toc ol { list-style: none; margin: 0; padding: 0 6px 4px; counter-reset: toc; }
.toc li { margin: 1px 0; }
.toc a {
  display: block;
  padding: 7px 10px;
  border-radius: 9px;
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.35;
  font-weight: 500;
}
.toc a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }

/* Prose */
.prose { max-width: 74ch; overflow-wrap: break-word; }
.prose > *:first-child { margin-top: 0; }
.prose h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  font-weight: 700;
  margin-top: 2.2em;
  padding-top: 0.4em;
  scroll-margin-top: calc(var(--header-h) + 28px);
}
.prose h3 {
  font-size: 1.18rem;
  font-weight: 700;
  color: #E7EFEB;
  margin-top: 1.8em;
  scroll-margin-top: calc(var(--header-h) + 28px);
}
.prose h2:target,
.prose h3:target { color: var(--green-bright); }
.prose p, .prose li { color: var(--text-2); }
.prose li { color: var(--text-2); }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin-bottom: 0.5em; }
.prose li::marker { color: var(--green); }
.prose a { font-weight: 600; }
.prose hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 2.6em 0;
}

/* Publisher note / callout */
.note {
  margin: 1.6em 0;
  padding: 16px 18px 16px 20px;
  border-radius: 14px;
  border: 1px solid var(--border-green);
  border-left: 3px solid var(--green);
  background: var(--glow-soft);
  font-size: 0.96rem;
}
.note p { margin-bottom: 0.6em; color: var(--text-2); }
.note p:last-child { margin-bottom: 0; }
.note strong { color: var(--green-bright); }
.note .label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green-bright);
  margin-bottom: 6px;
}

/* Emphasis block (caps disclaimers in terms) */
.legal-caps {
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  color: var(--text-2);
}

/* Tables (privacy sub-processors) */
.table-wrap { overflow-x: auto; margin: 1.4em 0; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.prose table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  font-size: 0.95rem;
}
.prose th, .prose td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.prose thead th {
  background: var(--surface-2);
  color: var(--text);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.prose tbody td { color: var(--text-2); }
.prose tbody tr:last-child td { border-bottom: none; }
.prose tbody strong { color: var(--text); }

/* Back-to-top inline link at section ends, optional */
.toc-cta {
  margin-top: 10px;
  padding: 10px 12px;
}

/* ---------------------------------------------------- Steps (support) */
.faq-steps { counter-reset: step; }

/* ------------------------------------------------------- Responsive */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .scan-wrap { order: -1; margin-bottom: 12px; }
  .scan-card { width: min(360px, 100%); }
  .legal-layout { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .toc { position: static; }
  /* Collapsed by default on phones (no `open` attr). Expand inline, no nested
     scroll trap, with a clear +/- affordance on the summary. */
  .toc nav { max-height: none; }
  .toc > summary { display: flex; align-items: center; justify-content: space-between; }
  .toc > summary::after {
    content: "+";
    font-size: 1.15rem;
    line-height: 1;
    color: var(--green-bright);
    font-weight: 700;
  }
  .toc[open] > summary::after { content: "\2212"; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-nav { justify-content: flex-start; gap: 48px; }
}

@media (max-width: 560px) {
  /* Shorter sticky header on phones (drives scroll-padding + sticky offsets) */
  :root { --header-h: 56px; }
  body { font-size: 1rem; }
  /* Tighter mobile gutter: reclaim ~8px of content width on phones */
  .container { padding-inline: 16px; }
  .nav { gap: 11px; }
  .nav a { font-size: 0.92rem; }
  .nav .nav-extra { display: none; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1 1 auto; }
  .footer-nav { gap: 32px; }

  /* Sub-processor table restacks into label/value cards so no column hides
     behind a horizontal swipe. Only privacy.html has a .prose table. */
  .table-wrap { overflow-x: visible; border: none; border-radius: 0; margin: 1.4em 0; }
  .prose table { min-width: 0; font-size: 0.95rem; }
  .prose table,
  .prose thead,
  .prose tbody,
  .prose tr,
  .prose th,
  .prose td { display: block; }
  .prose thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); } /* visually hide header row, keep for a11y */
  .prose tbody tr {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    margin-bottom: 12px;
    padding: 6px 16px;
  }
  .prose tbody td {
    border: none;
    padding: 10px 0;
  }
  .prose tbody tr td:not(:last-child) { border-bottom: 1px solid var(--border); }
  .prose td::before {
    content: attr(data-label);
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 3px;
  }
}

/* Phones: give footer links a comfortable tap target (kept off desktop so the
   footer column rhythm there is unchanged). */
@media (max-width: 560px) {
  .footer-col a { display: inline-flex; align-items: center; min-height: 40px; }
}

/* Narrowest phones: stack the two footer columns so neither crowds */
@media (max-width: 420px) {
  .footer-nav { flex-direction: column; gap: 24px; }
}

/* Very small phones (<=360px, incl. iPhone mini / 320px): drop the header
   wordmark to the coin mark only so the 4-link nav always fits on one line.
   Scoped to .site-header so the footer wordmark (which has no coin mark) stays. */
@media (max-width: 374px) {
  .site-header .brand span { display: none; }
  .nav { gap: 10px; }
  .nav a { font-size: 0.9rem; }
}

/* Collapsible TOC: on wide screens force the list visible (the `open` attribute
   was removed so it defaults collapsed on phones) and remove the pointer. */
@media (min-width: 941px) {
  .toc > nav { display: block; }
  .toc[open] > summary,
  .toc > summary { cursor: default; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}