:root {
  --bg: #f4f4f2;
  --ink: #0a0a0a;
  --muted: #8a8a88;
  --line: rgba(0, 0, 0, 0.16);
  --blue: #1aa3e0;
  --blue-dark: #0d86bf;
  --mono: "Space Mono", ui-monospace, monospace;
  --pixel: "Press Start 2P", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: 64px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 34px;
}
.nav .corner {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--ink);
  border-style: solid;
  border-width: 0;
}
.nav .tl { top: 10px; left: 16px; border-top-width: 2px; border-left-width: 2px; }
.nav .bl { bottom: 8px; left: 16px; border-bottom-width: 2px; border-left-width: 2px; }
.nav .tr { top: 10px; right: 16px; border-top-width: 2px; border-right-width: 2px; }
.nav .br { bottom: 8px; right: 16px; border-bottom-width: 2px; border-right-width: 2px; }

.logo { display: flex; align-items: center; width: 28px; height: 28px; }
.logo svg { width: 100%; height: 100%; }

.nav-links { display: flex; gap: 46px; font-size: 13px; letter-spacing: 0.02em; }
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--ink);
  transition: width .25s ease;
}
.nav-links a:hover::after { width: 100%; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 13px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 2px 2px 0 var(--ink); }
.btn-primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-primary:hover { background: var(--blue-dark); }
.nav .btn { padding: 6px 18px; }

/* ---------- HERO ---------- */
.hero-wrap { position: relative; height: 230vh; }

.hero {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  background: var(--bg);
}

#gl {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  display: block;
}

.hero-title {
  position: absolute;
  z-index: 0;
  top: 15.5%;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  text-align: center;
  font-family: var(--pixel);
  font-weight: 400;
  font-size: clamp(30px, 6.3vw, 120px);
  line-height: 1.32;
  letter-spacing: 0.02em;
  color: var(--ink);
  white-space: nowrap;
  user-select: text;
}
.hero-title .line { display: block; }
/* Cuando WebGL está listo, el título se dibuja dentro de la escena (para que el cubo lo refracte y desenfoque) */
.gl-ready .hero-title { color: transparent; }

.hero-ui { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.hero-ui > * { pointer-events: auto; }

.meta {
  position: absolute;
  font-size: 7.5px;
  line-height: 1.35;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
}
.meta.right { text-align: right; }

.tag {
  position: absolute;
  font-size: 7.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 2px 5px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: rgba(255, 255, 255, 0.55);
  pointer-events: none;
}

.snow { position: absolute; top: 66px; left: 50%; transform: translateX(-50%); color: #c9c9c9; font-size: 11px; letter-spacing: 2px; }

.vertical {
  position: absolute;
  left: 20px;
  bottom: 16px;
  font-size: 7.5px;
  line-height: 1.6;
  color: var(--muted);
  display: grid;
  grid-template-columns: repeat(2, 12px);
}

.hero-copy {
  position: absolute;
  left: 48px;
  top: 51%;
  max-width: 270px;
}
.hero-copy p { font-size: 15px; line-height: 1.32; margin-bottom: 26px; }
.hero-copy .actions { display: flex; gap: 10px; }

/* ---------- PROOF OF CUSTODY CARD ---------- */
.custody {
  position: absolute;
  right: 32px;
  bottom: 12px;
  width: 238px;
  padding: 10px 8px 8px;
  font-size: 5.5px;
  line-height: 1.5;
  color: #6f6f6f;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.custody .corner { position: absolute; width: 9px; height: 9px; border: 0 solid var(--ink); }
.custody .tl { top: 0; left: 0; border-top-width: 2px; border-left-width: 2px; }
.custody .tr { top: 0; right: 0; border-top-width: 2px; border-right-width: 2px; }
.custody .bl { bottom: 0; left: 0; border-bottom-width: 2px; border-left-width: 2px; }
.custody .brc { bottom: 0; right: 0; border-bottom-width: 2px; border-right-width: 2px; }

.custody-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.custody-head h4 { font-family: var(--mono); font-weight: 400; font-size: 9px; color: var(--ink); letter-spacing: 0.05em; }
.custody-head .arrow { font-size: 14px; color: var(--ink); line-height: 1; }

.custody-body { display: grid; grid-template-columns: 1fr auto 64px 1fr; gap: 6px; align-items: center; }
.custody-body .r { text-align: right; }
.custody svg.qr { width: 64px; height: 64px; display: block; }
.custody .glyph { width: 22px; height: 22px; }
.custody-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 6px; }
.custody-foot svg { display: block; }
#drift { color: var(--ink); }

/* ---------- SCROLL HINT ---------- */
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  font-size: 8px;
  letter-spacing: 0.2em;
  color: var(--muted);
  pointer-events: none;
  animation: blink 1.6s steps(2) infinite;
}
@keyframes blink { 50% { opacity: .25; } }

/* ---------- SECTIONS ---------- */
.section {
  position: relative;
  z-index: 3;
  background: var(--bg);
  border-top: 1px solid var(--line);
  padding: 110px 48px;
  background-image:
    linear-gradient(rgba(0,0,0,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,.035) 1px, transparent 1px);
  background-size: 28px 28px;
}
.section-label { font-size: 9px; letter-spacing: 0.12em; color: var(--muted); margin-bottom: 18px; }
.section h2 {
  font-family: var(--pixel);
  font-weight: 400;
  font-size: clamp(20px, 3.4vw, 46px);
  line-height: 1.35;
  margin-bottom: 56px;
  max-width: 18ch;
}

.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.cell { background: rgba(244,244,242,.94); padding: 28px 24px 32px; position: relative; }
.cell .idx { font-size: 9px; color: var(--muted); letter-spacing: .1em; }
.cell h3 { font-family: var(--mono); font-size: 17px; margin: 22px 0 10px; }
.cell p { font-size: 13px; line-height: 1.5; color: #444; }

.stat { font-family: var(--pixel); font-size: clamp(20px, 2.6vw, 34px); margin: 18px 0 10px; }

.price { font-family: var(--pixel); font-size: 26px; margin: 18px 0 6px; }
.price small { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.cell ul { list-style: none; margin: 18px 0 26px; font-size: 12.5px; line-height: 2; color: #333; }
.cell ul li::before { content: "+ "; color: var(--blue); }
.cell.featured { background: var(--ink); color: #f4f4f2; }
.cell.featured p, .cell.featured ul { color: #c9c9c9; }
.cell.featured .idx { color: var(--blue); }

.footer {
  position: relative;
  z-index: 3;
  background: var(--ink);
  color: #c9c9c9;
  padding: 56px 48px 28px;
  font-size: 11px;
}
.footer .big { font-family: var(--pixel); color: #f4f4f2; font-size: clamp(22px, 5vw, 72px); margin-bottom: 40px; }
.footer .row { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid #2a2a2a; padding-top: 18px; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .custody { transform: scale(.85); transform-origin: bottom right; right: 16px; }
}

@media (max-width: 760px) {
  .nav { padding: 0 16px; }
  .nav-links { display: none; }
  .hero-title { top: 13%; font-size: clamp(16px, 7.2vw, 40px); white-space: normal; padding: 0 16px; }
  .hero-copy { left: 16px; right: 16px; top: auto; bottom: 24px; max-width: none; }
  .hero-copy p { font-size: 13px; margin-bottom: 16px; max-width: 300px; }
  .custody, .vertical, .tag.hide-sm, .meta.hide-sm, .scroll-hint { display: none; }
  .section { padding: 72px 16px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer { padding: 48px 16px 24px; }
}