:root {
  --bg: #06080f;
  --text: #eef2ff;
  --muted: #93a1c0;
  --line: rgba(140, 160, 220, 0.16);
  --card: rgba(20, 28, 46, 0.55);
  --uc-a: #8b5cf6;
  --uc-b: #6366f1;
  --dr-a: #22d3ee;
  --dr-b: #34d399;
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ---------- animated background ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  width: 46vmax;
  height: 46vmax;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}

.b1 {
  background: radial-gradient(circle, #6366f1, transparent 62%);
  top: -16vmax;
  left: -10vmax;
  animation: float1 22s ease-in-out infinite;
}

.b2 {
  background: radial-gradient(circle, #22d3ee, transparent 62%);
  top: -8vmax;
  right: -14vmax;
  animation: float2 26s ease-in-out infinite;
}

.b3 {
  background: radial-gradient(circle, #f472b6, transparent 62%);
  bottom: -22vmax;
  left: 22vmax;
  opacity: 0.32;
  animation: float3 30s ease-in-out infinite;
}

@keyframes float1 {
  50% {
    transform: translate3d(6vmax, 5vmax, 0) scale(1.12);
  }
}
@keyframes float2 {
  50% {
    transform: translate3d(-7vmax, 4vmax, 0) scale(1.08);
  }
}
@keyframes float3 {
  50% {
    transform: translate3d(4vmax, -6vmax, 0) scale(1.15);
  }
}

.grain {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 78%);
}

/* ---------- shell ---------- */
.topbar,
main,
footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 22px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.4px;
  font-size: 17px;
}

.brand .mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--uc-a), var(--dr-a));
  box-shadow: 0 6px 22px rgba(99, 102, 241, 0.45);
  font-size: 18px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  padding: 6px 12px;
  border-radius: 999px;
}

.status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  70% {
    box-shadow: 0 0 0 8px rgba(52, 211, 153, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0);
  }
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 22px 40px;
}

/* ---------- hero ---------- */
.hero {
  padding: 78px 0 54px;
  max-width: 760px;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.6px;
  color: #c7d2fe;
  border: 1px solid rgba(129, 140, 248, 0.35);
  background: rgba(99, 102, 241, 0.12);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(38px, 7vw, 68px);
  line-height: 1.08;
  letter-spacing: -1.5px;
  font-weight: 900;
}

.grad {
  background: linear-gradient(100deg, #a78bfa 0%, #22d3ee 55%, #34d399 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sub {
  margin: 20px 0 0;
  font-size: clamp(15px, 2vw, 18px);
  color: var(--muted);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn.primary {
  background: linear-gradient(135deg, #7c3aed, #4f46e5 55%, #0ea5e9);
  color: #fff;
  box-shadow: 0 14px 34px rgba(79, 70, 229, 0.42);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px rgba(79, 70, 229, 0.55);
}

.btn.ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.btn.ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(148, 163, 255, 0.5);
}

/* ---------- section ---------- */
.section-title {
  font-size: 15px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  margin: 0 0 18px;
}

/* ---------- game cards ---------- */
.games {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  scroll-margin-top: 20px;
}

@media (max-width: 760px) {
  .games {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 46px 0 34px;
  }
}

.game-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.22s cubic-bezier(0.2, 0.7, 0.3, 1), border-color 0.22s ease, box-shadow 0.28s ease;
}

.game-card .glow {
  position: absolute;
  inset: -40% 30% 60% -10%;
  z-index: -1;
  filter: blur(60px);
  opacity: 0.55;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.game-card.uc .glow {
  background: radial-gradient(circle at 30% 30%, var(--uc-a), transparent 65%);
}
.game-card.draw .glow {
  background: radial-gradient(circle at 30% 30%, var(--dr-b), transparent 65%);
}

.game-card.uc:hover {
  transform: translateY(-6px);
  border-color: rgba(139, 92, 246, 0.6);
  box-shadow: 0 26px 60px rgba(76, 29, 149, 0.42);
}

.game-card.draw:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, 0.55);
  box-shadow: 0 26px 60px rgba(8, 145, 178, 0.38);
}

.game-card .glow {
  transform: translateY(0);
}
.game-card:hover .glow {
  opacity: 0.85;
  transform: translateY(-8px);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  font-size: 28px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.live {
  font-size: 12px;
  font-weight: 700;
  padding: 5px 11px;
  border-radius: 999px;
  color: #6ee7b7;
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.live.soon {
  color: #fcd34d;
  background: rgba(245, 158, 11, 0.13);
  border-color: rgba(245, 158, 11, 0.38);
}

.game-card h3 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.4px;
}

.game-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.65;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
}

.tags span {
  font-size: 12px;
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 8px;
}

.cta {
  margin-top: auto;
  padding-top: 8px;
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.game-card.uc .cta {
  color: #c4b5fd;
}
.game-card.draw .cta {
  color: #7dd3fc;
}

.arrow {
  transition: transform 0.2s ease;
}

.game-card:hover .arrow {
  transform: translateX(5px);
}

.game-card.soon {
  opacity: 0.72;
  cursor: default;
}

.game-card.soon:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--line);
}

/* ---------- features ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
}

@media (max-width: 760px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  border-radius: 16px;
  padding: 16px;
}

.feature span {
  font-size: 20px;
}

.feature h4 {
  margin: 8px 0 4px;
  font-size: 14px;
}

.feature p {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- footer ---------- */
footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 26px 22px 40px;
  color: #64748b;
  font-size: 13px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

footer a:hover {
  color: #cbd5e1;
}

.sep {
  opacity: 0.5;
}

/* entrance */
.hero,
.games,
.features {
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
.games {
  animation-delay: 0.08s;
}
.features {
  animation-delay: 0.16s;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .blob,
  .hero,
  .games,
  .features,
  .status .dot {
    animation: none;
  }
}