:root {
  --bg-dark: #090a0f;
  --bg-surface: #12151f;
  --bg-surface-elevated: #1a1e2d;
  --border-color: #23293d;
  --border-highlight: #3b4466;
  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.25);
  --accent-green: #10b981;
  --accent-cyan: #06b6d4;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Gradients */
.bg-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at 50% 10%, rgba(245, 158, 11, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
  z-index: -1;
  pointer-events: none;
}

/* Navigation */
header {
  position: sticky;
  top: 0;
  background: rgba(9, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 0 15px var(--accent-gold-glow);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-name span {
  color: var(--accent-gold);
}

.brand-tag {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.3);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000;
  box-shadow: 0 4px 14px var(--accent-gold-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-highlight);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 60px 0 50px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 0.4; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, #f59e0b, #fbbf24, #fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}

.stat-card:hover {
  border-color: var(--border-highlight);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.stat-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* Mining Arena Card */
.mining-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 36px;
  margin-bottom: 60px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.mining-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 28px;
}

.mining-header h2 {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.mining-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.mining-controls {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 800px) {
  .mining-controls {
    grid-template-columns: 1fr;
  }
}

.gauge-panel {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hashrate-display {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 12px 0 16px;
}

.hashrate-number {
  font-size: 3rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--accent-gold);
}

.hashrate-unit {
  font-size: 1.2rem;
  color: var(--text-muted);
  font-weight: 700;
}

.meter-bar {
  height: 8px;
  background: #090a0f;
  border-radius: 4px;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #f59e0b, #10b981);
  transition: width 0.3s;
}

.terminal-panel {
  background: #06070a;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  height: 260px;
  display: flex;
  flex-direction: column;
}

.terminal-header {
  color: var(--text-muted);
  font-size: 0.75rem;
  border-bottom: 1px solid #1a1e2d;
  padding-bottom: 8px;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
}

.terminal-logs {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.log-entry {
  color: #94a3b8;
  word-break: break-all;
}

.log-success {
  color: var(--accent-green);
  font-weight: 700;
}

.log-gold {
  color: var(--accent-gold);
}

/* Tokenomics Section */
.tokenomics-section {
  padding: 40px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-title p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 30px;
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  background: #06070a;
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer a {
  color: var(--accent-gold);
  text-decoration: none;
}