:root {
  --color-bg: #080d18;
  --color-bg-mid: #0c1423;
  --color-bg-deep: #070b13;
  --color-bg-rgb: 8, 13, 24;
  --color-panel-rgb: 14, 22, 38;
  --color-panel-strong-rgb: 19, 31, 52;
  --color-slate-panel-rgb: 15, 23, 42;
  --color-line-rgb: 148, 163, 184;
  --color-text: #eef4ff;
  --color-muted: #9aa8bd;
  --color-blue: #38bdf8;
  --color-blue-soft: #bae6fd;
  --color-blue-action: #60a5fa;
  --color-blue-rgb: 56, 189, 248;
  --color-gold: #f4b942;
  --color-gold-rgb: 244, 185, 66;
  --color-orange: #f97316;
  --color-green: #22c55e;
  --color-green-rgb: 34, 197, 94;
  --color-red: #f87171;
  --color-raven: #3b82f6;
  --color-ink: #15100a;
  --color-white-rgb: 255, 255, 255;
  --color-black-rgb: 0, 0, 0;
  --panel: rgba(var(--color-panel-rgb), 0.82);
  --panel-strong: rgba(var(--color-panel-strong-rgb), 0.95);
  --line: rgba(var(--color-line-rgb), 0.2);
  --text: var(--color-text);
  --muted: var(--color-muted);
  --blue: var(--color-blue);
  --gold: var(--color-gold);
  --green: var(--color-green);
  --red: var(--color-red);
  --raven: var(--color-raven);
  --shadow-gold-soft: 0 0 34px rgba(var(--color-gold-rgb), 0.22);
  --shadow-gold-progress: 0 0 24px rgba(var(--color-gold-rgb), 0.35);
  --shadow-visual: 0 30px 90px rgba(var(--color-black-rgb), 0.32);
  --surface-header: rgba(var(--color-bg-rgb), 0.76);
  --surface-visual: rgba(var(--color-slate-panel-rgb), 0.94);
  --surface-visual-deep: rgba(var(--color-bg-rgb), 0.92);
  --surface-timeline: rgba(var(--color-panel-rgb), 0.62);
  --surface-era: rgba(var(--color-bg-rgb), 0.68);
  --surface-block: rgba(var(--color-slate-panel-rgb), 0.88);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 10%, rgba(var(--color-gold-rgb), 0.14), transparent 28rem),
    radial-gradient(circle at 90% 20%, rgba(var(--color-blue-rgb), 0.12), transparent 30rem),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-mid) 52%, var(--color-bg-deep) 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: var(--surface-header);
  border-bottom: 1px solid var(--line);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(var(--color-gold-rgb), 0.45);
  background: linear-gradient(135deg, rgba(var(--color-gold-rgb), 0.28), rgba(var(--color-blue-rgb), 0.13));
  clip-path: polygon(50% 0, 94% 25%, 94% 75%, 50% 100%, 6% 75%, 6% 25%);
  color: var(--gold);
  font-size: 19px;
}

.brand-mark img {
  width: 25px;
  height: 25px;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a:hover { color: var(--text); }

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  flex: 1;
}

.hero {
  min-height: calc(100vh - 64px);
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(340px, 0.97fr);
  gap: 32px;
  align-items: center;
  padding: 40px 0 28px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid rgba(var(--color-blue-rgb), 0.28);
  background: rgba(var(--color-blue-rgb), 0.08);
  color: var(--color-blue-soft);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(var(--color-green-rgb), 0.12);
}

h1 {
  margin: 22px 0 14px;
  font-size: clamp(3rem, 8vw, 6.7rem);
  line-height: 0.9;
  letter-spacing: 0;
  max-width: 850px;
}

.headline-accent {
  color: var(--gold);
  text-shadow: var(--shadow-gold-soft);
}

.intro {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.8vw, 1.22rem);
  line-height: 1.65;
}

.countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 30px;
}

.timebox {
  min-height: 106px;
  padding: 16px 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(var(--color-white-rgb),0.04);
  min-width: 0;
  overflow: hidden;
}

.timebox strong {
  display: block;
  font-size: clamp(1.72rem, 4.2vw, 2.75rem);
  line-height: 1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.timebox span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  font-weight: 750;
}

.hero-actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(var(--color-white-rgb),0.14);
  color: var(--text);
  text-decoration: none;
  font-weight: 780;
  background: rgba(var(--color-white-rgb),0.05);
}

.button.primary {
  background: linear-gradient(135deg, var(--color-gold), var(--color-orange));
  color: var(--color-ink);
  border-color: transparent;
}

.visual {
  position: relative;
  min-height: 630px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, var(--surface-visual), var(--surface-visual-deep)),
    repeating-linear-gradient(90deg, rgba(var(--color-white-rgb),0.035) 0 1px, transparent 1px 82px);
  overflow: hidden;
  box-shadow: var(--shadow-visual);
}

.chain-rail {
  position: absolute;
  left: 44px;
  right: 44px;
  top: 58px;
  height: 10px;
  background: rgba(var(--color-line-rgb), 0.18);
  overflow: hidden;
}

.chain-fill {
  height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--raven), var(--gold));
  box-shadow: var(--shadow-gold-progress);
}

.halving-core {
  position: absolute;
  left: 50%;
  top: 44%;
  width: min(420px, 76%);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(var(--color-gold-rgb), 0.18);
  display: grid;
  place-items: center;
  clip-path: polygon(50% 0, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
  background:
    repeating-linear-gradient(30deg, rgba(var(--color-gold-rgb), 0.1) 0 2px, transparent 2px 19px),
    linear-gradient(135deg, rgba(var(--color-gold-rgb), 0.18), rgba(var(--color-blue-rgb), 0.08));
}

.halving-core::before,
.halving-core::after {
  content: "";
  position: absolute;
  inset: 11%;
  border: 1px solid rgba(var(--color-blue-rgb), 0.22);
  clip-path: inherit;
  animation: breathe 4s ease-in-out infinite;
}

.halving-core::after {
  inset: 23%;
  border-color: rgba(var(--color-gold-rgb), 0.42);
  animation-delay: -1.5s;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.55; }
  50% { transform: scale(1.055); opacity: 1; }
}

.core-text {
  position: relative;
  text-align: center;
  padding: 28px;
}

.core-text span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.core-text strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(1.95rem, 4.1vw, 3.55rem);
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.block-stack {
  position: absolute;
  left: 34px;
  right: 34px;
  bottom: 34px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
  align-items: end;
}

.block {
  min-height: 58px;
  border: 1px solid rgba(var(--color-line-rgb), 0.18);
  background: var(--surface-block);
  display: flex;
  align-items: end;
  justify-content: center;
  padding: 8px 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  position: relative;
  overflow: hidden;
}

.block::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: var(--h, 45%);
  background: linear-gradient(180deg, rgba(var(--color-blue-rgb), 0.12), rgba(var(--color-blue-rgb), 0.34));
}

.block.hot::before {
  background: linear-gradient(180deg, rgba(var(--color-gold-rgb), 0.2), rgba(var(--color-gold-rgb), 0.58));
}

.block span { position: relative; z-index: 1; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 56px;
}

.stat {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  padding: 18px;
  min-height: 116px;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.stat strong {
  display: block;
  margin-top: 10px;
  color: var(--text);
  font-size: clamp(1.35rem, 2.4vw, 2.05rem);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.stat small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.4;
}

.timeline {
  margin-bottom: 54px;
  border: 1px solid var(--line);
  background: var(--surface-timeline);
  padding: 22px;
}

.timeline h2 {
  margin: 0 0 20px;
  font-size: clamp(1.5rem, 4vw, 2.3rem);
}

.eras {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.era {
  border: 1px solid var(--line);
  padding: 16px;
  background: var(--surface-era);
}

.era.active { border-color: rgba(var(--color-gold-rgb), 0.68); }
.era.next { border-color: rgba(var(--color-blue-rgb), 0.52); }

.era span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.era strong {
  display: block;
  margin: 8px 0;
  font-size: 1.35rem;
}

footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
}

footer a { color: var(--color-blue-soft); text-decoration: none; }

@media (max-width: 900px) {
  .hero {
    min-height: 0;
    grid-template-columns: 1fr;
    padding-top: 34px;
  }

  .visual { min-height: 520px; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .eras { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .nav { height: auto; min-height: 60px; align-items: flex-start; padding: 12px 0; flex-direction: column; }
  .nav-links { gap: 10px; font-size: 13px; flex-wrap: wrap; }
  .countdown { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timebox { min-height: 94px; }
  .timebox strong { font-size: clamp(2rem, 10vw, 2.65rem); }
  .visual { min-height: 470px; }
  .block-stack { grid-template-columns: repeat(4, 1fr); }
  .stats, .eras { grid-template-columns: 1fr; }
  .hero-actions .button { width: 100%; }
}