:root {
  --bg: #0a1a12;
  --bg-gradient: linear-gradient(135deg, #0d1f18 0%, #11261e 100%);
  --card: rgba(20, 40, 30, 0.65);
  --border: rgba(212, 175, 55, 0.15);
  --gold: #d4af37;
  --gold-light: #e6c567;
  --text: #e8e8e0;
  --text-muted: #a0a09a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-gradient);
  color: var(--text);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.container {
  text-align: center;
  padding: 56px 72px;
  background: var(--card);
  border-radius: 28px;
  backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.6),
    0 0 80px rgba(212, 175, 55, 0.08);
  max-width: 620px;
  position: relative;
  overflow: hidden;
}

.container::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 28px;
  padding: 2px;
  background: linear-gradient(45deg, transparent, var(--gold), transparent);
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events: none;
}

.logo {
  width: 140px;
  height: 140px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  border-radius: 50%;
  margin: 0 auto 36px;
  box-shadow: 0 15px 40px rgba(212, 175, 55, 0.3);
  animation: float 8s ease-in-out infinite;
  display: grid;
  place-items: center;
  font-size: 64px;
  font-weight: bold;
  color: #0d1f18;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-24px) rotate(5deg); }
}

h1 {
  font-size: 54px;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(90deg, #d4af37, #f8e08e, #d4af37);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -1px;
}

.tagline {
  font-size: 22px;
  color: var(--text-muted);
  margin-bottom: 48px;
  font-weight: 300;
}

.features {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 52px 0;
}

.feature {
  text-align: center;
}

.feature-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.feature h3 {
  font-size: 18px;
  color: var(--gold);
  margin-bottom: 8px;
  font-weight: 600;
}

.feature p {
  font-size: 14px;
  color: var(--text-muted);
}

.cta {
  margin: 48px 0 20px;
  font-size: 18px;
  color: var(--text);
}

.code {
  background: rgba(212, 175, 55, 0.15);
  color: var(--gold);
  padding: 8px 16px;
  border-radius: 12px;
  font-family: 'SF Mono', Monaco, monospace;
  font-weight: 500;
}

.footer {
  margin-top: 60px;
  font-size: 15px;
  color: var(--text-muted);
}

.footer a {
  color: var(--gold);
  text-decoration: none;
  font-weight: 500;
}

.footer a:hover {
  text-decoration: underline;
}

nav {
  margin-bottom: 20px;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: var(--gold);
}

nav a:hover {
  text-decoration: underline;
}

button {
  padding: 10px 20px;
  background-color: var(--gold);
  color: #0d1f18;
  border: none;
  cursor: pointer;
  margin: 5px;
  border-radius: 8px;
  font-weight: 600;
}

button:hover {
  background-color: var(--gold-light);
}

input, select {
  padding: 8px;
  margin: 5px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
}

ul {
  list-style-type: none;
  padding: 0;
}

li {
  cursor: pointer;
  padding: 5px;
  background-color: var(--card);
  margin: 2px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

li:hover {
  background-color: rgba(20, 40, 30, 0.8);
}

pre {
  text-align: left;
  background-color: var(--card);
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  max-height: 400px;
  overflow-y: auto;
  color: var(--text);
}