:root {
  --paper: #F7F6F3;
  --ink: #2C2B28;
  --sky: #6AADD4;
  --muted: #8B8780;
  --cream: #FAF2E4;
  --cream-mid: #F3E9D6;
  --cream-deep: #E8E0D4;
  --cream-edge: #D9D0C2;
  --size: min(72vw, 340px);
}

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

html, body {
  background: var(--paper);
  color: var(--ink);
  min-height: 100%;
}

body {
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  font-weight: 600;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px 56px;
  background:
    radial-gradient(ellipse 64% 46% at 50% 40%, rgba(232, 243, 248, 0.95) 0%, transparent 70%),
    var(--paper);
  overflow: hidden;
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
}

.stage {
  position: relative;
  width: calc(var(--size) * 1.2);
  height: calc(var(--size) * 1.2);
  perspective: 1200px;
  z-index: 1;
  touch-action: none;
  display: grid;
  place-items: center;
}

.shadow {
  position: absolute;
  left: 50%;
  bottom: 10%;
  width: 58%;
  height: 13%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(44, 43, 40, 0.16) 0%, rgba(44, 43, 40, 0.06) 45%, transparent 72%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
  will-change: transform, opacity;
}

.coin-wrap {
  position: relative;
  width: var(--size);
  height: var(--size);
  transform-style: preserve-3d;
  z-index: 1;
  will-change: transform;
}

.coin {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
}

.edge-stack {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  pointer-events: none;
}

.edge-stack i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: linear-gradient(160deg, var(--cream-mid) 0%, var(--cream-deep) 45%, var(--cream-edge) 100%);
  transform: translateZ(calc(var(--i) * -1.2px));
  box-shadow: inset 0 0 0 1px rgba(44, 43, 40, 0.03);
}

.edge-stack i:nth-child(odd) {
  background: linear-gradient(155deg, #EDE4D4 0%, var(--cream-edge) 100%);
}

.face {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  transform: translateZ(1px);
  transform-style: preserve-3d;
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.55),
    0 18px 36px rgba(44, 43, 40, 0.07),
    0 4px 10px rgba(74, 139, 181, 0.07);
}

.face-fill {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, #FFFBF3 0%, var(--cream) 42%, var(--cream-mid) 78%, var(--cream-deep) 100%);
}

.sky-ring {
  position: absolute;
  inset: 7.5%;
  border-radius: 50%;
  border: calc(var(--size) * 0.028) solid var(--sky);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.25),
    0 0 0 1px rgba(106, 173, 212, 0.18);
  pointer-events: none;
}

.inner-recess {
  position: absolute;
  inset: 20%;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 42%, rgba(247, 246, 243, 0.3) 0%, rgba(232, 224, 212, 0.22) 70%, transparent 100%);
  box-shadow:
    inset 0 2px 6px rgba(44, 43, 40, 0.045),
    inset 0 -1px 0 rgba(255, 255, 255, 0.3);
  pointer-events: none;
}

.marks {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 2;
}

.mark {
  grid-area: 1 / 1;
  width: 40%;
  height: 40%;
  object-fit: contain;
  opacity: 0;
  transform: scale(0.92);
  filter: drop-shadow(0 1.5px 1px rgba(44, 43, 40, 0.1));
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: none;
  user-select: none;
}

.mark.is-active {
  opacity: 1;
  transform: scale(1);
}

.specular {
  position: absolute;
  left: 14%;
  top: 10%;
  width: 46%;
  height: 34%;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0.18) 42%, transparent 70%);
  mix-blend-mode: soft-light;
  pointer-events: none;
  z-index: 3;
  transform: rotate(-18deg) translateZ(2px);
  will-change: transform, opacity;
  filter: blur(0.5px);
}

.bevel-light {
  position: absolute;
  inset: 1.5%;
  border-radius: 50%;
  border-top: 1.25px solid rgba(255, 255, 255, 0.55);
  border-left: 1px solid rgba(255, 255, 255, 0.22);
  border-right: 0 solid transparent;
  border-bottom: 0 solid transparent;
  pointer-events: none;
  z-index: 4;
}

.bevel-dark {
  position: absolute;
  inset: 1.5%;
  border-radius: 50%;
  border-bottom: 1.25px solid rgba(44, 43, 40, 0.1);
  border-right: 1px solid rgba(44, 43, 40, 0.06);
  border-top: 0 solid transparent;
  border-left: 0 solid transparent;
  pointer-events: none;
  z-index: 4;
}

.brand {
  margin-top: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  z-index: 2;
  max-width: min(92vw, 560px);
}

.wordmark {
  font-size: clamp(28px, 4.2vw, 40px);
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink);
  font-weight: 600;
  text-transform: lowercase;
}

.tokens {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  padding: 5px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(44, 43, 40, 0.06);
}

.tokens li {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  padding: 5px 9px;
  border-radius: 999px;
  transition: color 0.25s ease, background 0.25s ease;
}

.tokens li.is-active {
  color: var(--ink);
  background: rgba(106, 173, 212, 0.18);
}

.lede {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.01em;
  z-index: 2;
}

.caption {
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  z-index: 2;
}

.note {
  margin-top: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  opacity: 0.78;
  z-index: 2;
}

.coin.is-settling {
  animation: settle-pop 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes settle-pop {
  0% { transform: scale3d(1, 1, 1); }
  45% { transform: scale3d(1.03, 1.03, 1); }
  100% { transform: scale3d(1, 1, 1); }
}

@media (max-width: 520px) {
  :root { --size: min(78vw, 300px); }
  .sky-ring { border-width: 3px; }
  .brand { flex-direction: column; gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .coin.is-settling { animation: none; }
  .mark { transition: none; }
  .tokens li { transition: none; }
}