:root {
  --radius: 0.625rem;
  --background: #0a0a0a;
  --foreground: #f2f2f2;
  --card: #141414;
  --muted: #1f1f1f;
  --muted-foreground: #a3a3a3;
  --accent: #222;
  --border: #2a2a2a;
  --primary: #fff;
  --primary-foreground: #0a0a0a;
  --brand-gold: #c9a227;
  --image-outline: rgba(255, 255, 255, 0.12);
  --site-width: 74rem;
  --site-gutter: 2rem;
  --nav-height: 5rem;
  --nav-clearance: 6rem;
  color-scheme: dark;
}

html[data-theme="light"] {
  --background: #f7f5f2;
  --foreground: #1a1714;
  --card: #fff;
  --muted: #ebe6e0;
  --muted-foreground: #6b6560;
  --accent: #e5e0da;
  --border: #d9d2cb;
  --primary: #000;
  --primary-foreground: #fff;
  --brand-gold: #8a6a12;
  --image-outline: rgba(0, 0, 0, 0.1);
  color-scheme: light;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--background);
  color: var(--foreground);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: var(--primary-foreground);
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.site-container {
  width: min(100% - (var(--site-gutter) * 2), var(--site-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--background) 82%, transparent);
  border-bottom: 1px solid transparent;
}
.nav-inner {
  height: var(--nav-height);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
}
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: contain;
  outline: 1px solid var(--image-outline);
  background: #000;
}
.desktop-nav {
  display: flex;
  gap: 1.5rem;
  margin-left: 1rem;
  font-size: 0.9375rem;
}
.desktop-nav a {
  color: var(--muted-foreground);
  transition: color 0.15s;
}
.desktop-nav a:hover { color: var(--foreground); }
.nav-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.icon-btn {
  width: 2.75rem;
  height: 2.75rem;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--foreground);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover { background: var(--accent); }
.theme-icon.hidden-icon { display: none; }
html[data-theme="light"] .theme-icon.moon { display: none; }
html[data-theme="light"] .theme-icon.sun.hidden-icon { display: block; }
html:not([data-theme="light"]) .theme-icon.sun { display: none; }
html:not([data-theme="light"]) .theme-icon.moon.hidden-icon { display: block; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 2.75rem;
  padding: 0 1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.875rem;
  font-weight: 400;
  transition: background-color 0.15s, color 0.15s, transform 0.15s;
}
.btn:active { transform: scale(0.96); }
.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-outline {
  background: var(--background);
  border-color: var(--border);
  color: var(--foreground);
}
.btn-outline:hover { background: var(--accent); }
.btn-ghost:hover { background: color-mix(in srgb, var(--accent) 50%, transparent); }
.btn-sm { height: 2.25rem; padding: 0 0.85rem; font-size: 0.8125rem; }
.mobile-only { display: none; }

/* Main */
.home { padding-top: var(--nav-clearance); }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding-block: clamp(3rem, 7vw, 7rem) clamp(6rem, 14vw, 12rem);
}
.hero h1 {
  font-size: clamp(2.75rem, 4.7vw, 4.5rem);
  font-weight: 400;
  line-height: 1.12;
  text-wrap: balance;
  margin: 0;
}
.hero h1 .gold { color: var(--brand-gold); }
.hero-lead {
  color: var(--muted-foreground);
  margin-top: 1.75rem;
  font-size: 1.125rem;
  line-height: 1.75;
  max-width: 36rem;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}
.ca-row {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
}
.ca-row code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  overflow-wrap: anywhere;
  max-width: 100%;
}
.ca-label {
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.7rem;
}

/* Hero collage */
.artwork { min-width: 0; }
.punk-composition {
  isolation: isolate;
  height: clamp(18rem, 30vw, 27rem);
  position: relative;
}
.art-punk {
  aspect-ratio: 1;
  width: 240px;
  padding: 12px;
  position: absolute;
}
.art-punk img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius);
  outline: 1px solid var(--image-outline);
  background: var(--card);
  aspect-ratio: 1;
}
.art-punk-0 { top: 18%; left: 0; }
.art-punk-1 { z-index: 1; top: 0; left: 27%; }
.art-punk-2 { bottom: 0; right: 0; }

/* Sections */
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.home h2 {
  font-size: clamp(1.75rem, 2.7vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
  text-wrap: balance;
  margin: 0;
}
.section-heading p,
.fee-copy > p {
  color: var(--muted-foreground);
  margin-top: 0.75rem;
  line-height: 1.7;
}

.mechanism {
  border-block: 1px solid var(--border);
  padding-block: 8rem;
  position: relative;
  overflow: hidden;
}
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2.5rem;
}
.step-number {
  color: var(--muted-foreground);
  font-variant-numeric: tabular-nums;
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
  display: block;
}
.steps h3 {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 400;
}
.steps p {
  color: var(--muted-foreground);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
}

/* Decorative yoyo */
.yoyo {
  --disc-size: clamp(6rem, 12vw, 10rem);
  --string-length: clamp(14rem, 20vw, 18rem);
  --swing-angle: 36deg;
  width: 0;
  height: var(--string-length);
  z-index: 0;
  pointer-events: none;
  color: var(--foreground);
  mix-blend-mode: difference;
  position: absolute;
  top: 0;
  left: 72%;
  opacity: 0.35;
}
.yoyo-arm {
  transform-origin: top;
  height: 100%;
  position: relative;
}
.yoyo-string {
  background: currentColor;
  width: 2px;
  position: absolute;
  inset: 0 auto 0 -1px;
  mask-image: linear-gradient(transparent, #000 45%);
}
.yoyo-disc {
  top: 100%;
  left: calc(var(--disc-size) / -2);
  width: var(--disc-size);
  height: var(--disc-size);
  background: currentColor;
  border-radius: 50%;
  position: absolute;
  transform: translateY(-50%);
}
@keyframes swing {
  from { transform: rotate(calc(-1 * var(--swing-angle))); }
  to { transform: rotate(var(--swing-angle)); }
}
@media (prefers-reduced-motion: no-preference) {
  .yoyo-arm { animation: 3s cubic-bezier(0.76, 0, 0.24, 1) infinite alternate swing; }
}

.collection {
  padding-block: 8rem;
}
.collection-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1.5rem;
}
.collect-card {
  display: block;
  aspect-ratio: 1;
  border-radius: calc(var(--radius) + 0.25rem);
  outline: 1px solid var(--image-outline);
  background: var(--card);
  overflow: hidden;
  transition: transform 0.15s, outline-color 0.15s;
}
.collect-card:hover {
  transform: translateY(-2px);
  outline-color: var(--brand-gold);
}
.collect-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  aspect-ratio: 1;
}

.fees {
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 5rem;
  padding-block: 8rem 10rem;
}
.fee-summary {
  background: var(--card);
  border-radius: calc(var(--radius) + 0.75rem);
  padding: 2rem;
  border: 1px solid var(--border);
}
.fee-summary h3 {
  color: var(--muted-foreground);
  font-size: 0.9375rem;
  font-weight: 400;
  margin: 0;
}
.fee-summary p {
  margin: 1rem 0 0;
  line-height: 1.7;
  color: var(--muted-foreground);
}
.fee-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.links-band {
  border-top: 1px solid var(--border);
  padding-block: 3rem;
}
.links-band .row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  justify-content: center;
  font-size: 0.875rem;
}
.links-band a {
  color: var(--muted-foreground);
}
.links-band a:hover { color: var(--foreground); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 4rem;
  text-align: center;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}
.footer-links a:hover { filter: brightness(1.1); }
.footer-disclaimer {
  color: var(--muted-foreground);
  font-size: 0.75rem;
  line-height: 1.6;
  max-width: 42rem;
  margin: 0 auto;
}
.footer-disclaimer a { text-decoration: underline; }

/* Mobile sheet */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--background);
  z-index: 60;
  padding: 1.25rem;
  transform: translateX(100%);
  transition: transform 0.2s ease;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
  font-size: 1.125rem;
}

@media (max-width: 1023px) {
  .hero { gap: 2rem; }
  .art-punk { width: 192px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
  .collection-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .fees { gap: 2rem; }
}

@media (max-width: 767px) {
  :root {
    --site-gutter: 1.25rem;
    --nav-height: 4.5rem;
    --nav-clearance: 5rem;
  }
  .desktop-nav { display: none; }
  .mobile-only { display: inline-flex; }
  .hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-block: 2.5rem 6rem;
  }
  .hero h1 { font-size: clamp(2.5rem, 8vw, 3.5rem); }
  .hero-lead { margin-top: 1.25rem; font-size: 1rem; }
  .artwork { width: min(100%, 26rem); margin-inline: auto; }
  .punk-composition { height: clamp(15rem, 66vw, 22rem); }
  .art-punk { width: 168px; }
  .section-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .mechanism { padding-block: 5rem; }
  .collection { padding-block: 5rem; }
  .collection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
  .fees {
    grid-template-columns: 1fr;
    padding-block: 5rem 6rem;
  }
  .yoyo { display: none; }
}

@media (max-width: 359px) {
  .art-punk { width: 144px; }
}


.hero-banner {
  width: 100%;
  aspect-ratio: 3 / 1;
  border-radius: calc(var(--radius) + 0.5rem);
  overflow: hidden;
  outline: 1px solid var(--image-outline);
  background: #000;
  margin-top: 2rem;
}
.hero-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.brand-mark-lg {
  width: min(220px, 40vw);
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: calc(var(--radius) + 0.25rem);
  outline: 1px solid var(--image-outline);
  background: #000;
  margin-bottom: 1.25rem;
}