:root {
  color-scheme: dark;
  --bg: #080807;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --text: #f8f4e8;
  --muted: #bcb5a2;
  --line: rgba(255, 255, 255, 0.16);
  --gold: #f7c948;
  --gold-2: #ffeb99;
  --copper: #d56f38;
  --teal: #39d7c8;
  --rose: #ff6b8b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 10%, rgba(247, 201, 72, 0.16), transparent 30rem),
    radial-gradient(circle at 80% 4%, rgba(57, 215, 200, 0.12), transparent 28rem),
    radial-gradient(circle at 70% 78%, rgba(255, 107, 139, 0.10), transparent 26rem),
    linear-gradient(135deg, #080807 0%, #14110c 48%, #080807 100%);
  color: var(--text);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.65), transparent 72%);
}

a {
  color: inherit;
}

.particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.site-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 10;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--text);
  color: #17120b;
  font-weight: 800;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 25%, #fff7bd 0 11%, var(--gold-2) 12% 28%, var(--gold) 29% 65%, var(--copper) 100%);
  color: #2b1806;
  box-shadow: 0 0 30px rgba(247, 201, 72, 0.32);
}

.nav-links,
.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-links a,
.footer-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover,
.footer-links a:hover,
.nav-links a:focus-visible,
.footer-links a:focus-visible {
  color: var(--text);
}

.hero {
  max-width: 940px;
  margin: 0 auto;
  min-height: calc(100svh - 64px);
  padding: 28px 22px 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.hero-intro {
  max-width: 760px;
  display: grid;
  justify-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--gold-2);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--teal);
}

h1,
h2,
h3 {
  line-height: 1.1;
  margin: 0;
}

h1 {
  max-width: none;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  font-weight: 950;
}

.hero-copy {
  max-width: 620px;
  margin: 12px auto 0;
  color: var(--muted);
  font-size: 1.14rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.button {
  border: 0;
  border-radius: var(--radius);
  min-height: 48px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #211505;
  background: linear-gradient(135deg, var(--gold-2), var(--gold) 55%, #e39a2f);
  box-shadow: 0 18px 42px rgba(247, 201, 72, 0.22);
  font-weight: 900;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 180ms ease, filter 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.04);
}

.button:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid var(--line);
  box-shadow: none;
}

.flip-board {
  position: relative;
  width: min(100%, 620px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.045));
  box-shadow: var(--shadow);
  padding: clamp(18px, 4vw, 28px);
  overflow: visible;
}

.flip-board::before {
  content: "";
  position: absolute;
  inset: -1px;
  background:
    linear-gradient(90deg, transparent, rgba(247, 201, 72, 0.25), transparent),
    linear-gradient(180deg, rgba(57, 215, 200, 0.12), transparent);
  opacity: 0.52;
  pointer-events: none;
}

.coin-zone {
  position: relative;
  z-index: 1;
  min-height: clamp(270px, 45vw, 390px);
  display: grid;
  place-items: center;
}

.coin-stage {
  position: relative;
  width: min(62vw, 310px);
  aspect-ratio: 1;
  border: 0;
  border-radius: 50%;
  padding: 0;
  background: transparent;
  cursor: pointer;
  perspective: 900px;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 30px 38px rgba(0, 0, 0, 0.45));
  animation: coin-float 2800ms ease-in-out infinite;
  -webkit-tap-highlight-color: transparent;
  transition: z-index 120ms ease;
}

.coin-stage.is-tossing {
  z-index: 8;
  animation: none;
}

.coin-stage::after {
  content: "Tap to flip";
  position: absolute;
  left: 50%;
  bottom: -28px;
  transform: translateX(-50%);
  color: var(--gold-2);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.82;
  white-space: nowrap;
}

.coin-stage:hover,
.coin-stage:focus-visible {
  outline: 0;
  filter: drop-shadow(0 34px 44px rgba(0, 0, 0, 0.48)) drop-shadow(0 0 28px rgba(247, 201, 72, 0.3));
}

.coin-stage:disabled {
  cursor: wait;
}

.coin {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transform: rotateY(0deg);
  will-change: transform;
}

.coin::before {
  content: "";
  position: absolute;
  inset: 2.5%;
  border-radius: 50%;
  transform: translateZ(-10px) scale(0.98);
  background:
    radial-gradient(circle at 50% 50%, rgba(116, 56, 11, 0.85) 0 58%, rgba(72, 31, 4, 0.95) 59% 100%);
  box-shadow:
    0 0 0 12px #8a4814,
    inset 0 0 24px rgba(0, 0, 0, 0.48);
}

.coin.is-winding {
  animation: coin-windup 420ms ease-in-out infinite alternate;
}

.coin.is-flipping {
  animation: coin-spin var(--flip-duration, 2600ms) cubic-bezier(0.13, 0.72, 0.16, 1) both;
}

.coin-face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 50%;
  backface-visibility: hidden;
  border: 12px solid #b97424;
  overflow: hidden;
}

.coin-face::before {
  content: "";
  position: absolute;
  inset: 13%;
  border-radius: 50%;
  border: 4px double rgba(87, 45, 8, 0.34);
}

.coin-face::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 31% 23%, rgba(255, 255, 255, 0.62), transparent 16%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.36), transparent 32%, rgba(93, 45, 10, 0.22) 68%, rgba(54, 22, 0, 0.36));
  mix-blend-mode: soft-light;
}

.coin-heads::after,
.coin-tails::after {
  animation: coin-shine 2200ms ease-in-out infinite;
}

.coin-heads {
  transform: translateZ(10px);
  background:
    radial-gradient(circle at 50% 43%, #fff4a7 0 12%, transparent 13%),
    radial-gradient(circle at 50% 52%, transparent 0 30%, rgba(91, 46, 8, 0.16) 31% 33%, transparent 34%),
    linear-gradient(135deg, #fff1a8, #f7c948 40%, #cc762f 100%);
}

.coin-tails {
  transform: rotateY(180deg) translateZ(10px);
  background:
    repeating-conic-gradient(from 12deg, rgba(89, 43, 6, 0.12) 0deg 9deg, transparent 10deg 20deg),
    linear-gradient(135deg, #ffe88a, #f4b43d 48%, #b9622d 100%);
}

.coin-label {
  position: relative;
  z-index: 1;
  color: #351c05;
  font-size: clamp(2.4rem, 8vw, 4.4rem);
  font-weight: 950;
  text-shadow: 0 2px 0 rgba(255, 255, 255, 0.22);
}

.coin-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 38%;
  aspect-ratio: 1;
  border: 5px solid rgba(53, 28, 5, 0.52);
  border-radius: 50%;
  color: #351c05;
  font-size: clamp(2.8rem, 8vw, 5rem);
  font-weight: 950;
}

.result-panel {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  justify-items: stretch;
  margin-top: 24px;
}

.flip-primary {
  width: min(100%, 280px);
  justify-self: center;
  min-height: 56px;
  font-size: 1.08rem;
}

.result-callout {
  min-height: 74px;
  display: grid;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.22);
  padding: 14px;
}

.result-label {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.result-value {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 950;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.stat {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.065);
  padding: 10px;
  min-width: 0;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.stat strong {
  display: block;
  margin-top: 2px;
  font-size: 1.35rem;
}

.history-list {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 36px;
  align-items: center;
  text-align: center;
}

.history-empty {
  color: var(--muted);
  font-size: 0.92rem;
}

.history-chip {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-2), var(--gold));
  color: #281706;
  font-weight: 950;
  box-shadow: 0 10px 22px rgba(247, 201, 72, 0.2);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 52px 22px;
}

.section-header {
  max-width: 760px;
  margin-bottom: 22px;
}

.section-header h2 {
  font-size: clamp(2rem, 4.4vw, 3.8rem);
}

.section-header p {
  color: var(--muted);
  margin: 12px 0 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.feature,
.content-card,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.feature {
  padding: 18px;
}

.feature h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.feature p,
.content-card p,
.faq-item p,
.legal-content p,
.legal-content li {
  color: var(--muted);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(280px, 0.48fr);
  gap: 18px;
  align-items: start;
}

.content-card {
  padding: 24px;
}

.content-card h2,
.content-card h3 {
  margin-top: 20px;
  margin-bottom: 10px;
}

.content-card h2:first-child,
.content-card h3:first-child {
  margin-top: 0;
}

.content-card ul,
.legal-content ul {
  padding-left: 22px;
}

.mini-panel {
  display: grid;
  gap: 12px;
}

.mini-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 11px 0;
}

.mini-row:last-child {
  border-bottom: 0;
}

.mini-row strong {
  color: var(--gold-2);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.faq-item {
  padding: 18px;
}

.faq-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.page-hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 74px 22px 34px;
  text-align: center;
}

.page-hero h1 {
  max-width: none;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
}

.page-hero p {
  max-width: 720px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 1.1rem;
}

.legal-content {
  max-width: 940px;
  margin: 0 auto;
  padding: 24px 22px 68px;
}

.legal-content .content-card {
  display: grid;
  gap: 6px;
}

.legal-content h2 {
  margin-top: 26px;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 36px;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

@keyframes coin-spin {
  0% {
    transform: translateY(0) rotateX(0deg) rotateY(0deg) rotateZ(0deg) scale(1);
  }
  12% {
    transform: translateY(-36px) rotateX(var(--spin-x1, 320deg)) rotateY(var(--spin-y1, 760deg)) rotateZ(10deg) scale(1.04);
  }
  42% {
    transform: translateY(-128px) rotateX(var(--spin-x2, 1440deg)) rotateY(var(--spin-y2, 2160deg)) rotateZ(-16deg) scale(1.08);
  }
  72% {
    transform: translateY(-28px) rotateX(var(--spin-x3, 2520deg)) rotateY(var(--spin-y3, 3600deg)) rotateZ(8deg) scale(1.02);
  }
  88% {
    transform: translateY(8px) rotateX(var(--spin-x4, 3200deg)) rotateY(var(--spin-y4, 4680deg)) rotateZ(-3deg) scale(0.99);
  }
  100% {
    transform: translateY(0) rotateX(0deg) rotateY(var(--coin-end, 5400deg)) rotateZ(0deg) scale(1);
  }
}

@keyframes coin-windup {
  0% {
    transform: translateY(0) rotateX(-8deg) rotateY(-18deg) rotateZ(-2deg) scale(0.985);
  }
  100% {
    transform: translateY(-8px) rotateX(10deg) rotateY(22deg) rotateZ(2deg) scale(1.02);
  }
}

@keyframes coin-float {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-10px) scale(1.015);
  }
}

@keyframes coin-shine {
  0%,
  100% {
    opacity: 0.72;
    transform: translateX(-8%) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: translateX(8%) rotate(8deg);
  }
}

@media (max-width: 900px) {
  .site-header,
  .footer-inner {
    align-items: flex-start;
  }

  .site-header,
  .footer-inner {
    flex-direction: column;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 24px;
  }

  h1 {
    max-width: none;
  }

  .feature-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding-top: 16px;
  }

  .nav-links,
  .footer-links {
    gap: 10px 14px;
  }

  .hero {
    min-height: calc(100svh - 106px);
    padding-top: 18px;
    gap: 18px;
  }

  .coin-zone {
    min-height: 250px;
  }

  .coin-stage::after {
    bottom: -18px;
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    opacity: 0.62;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-actions .button,
  .flip-primary {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}