/* CSS Variables */
:root {
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-card: #111111;
  --bg-hover: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --accent: #06b6d4;
  --accent-hover: #22d3ee;
  --success: #06b6d4;
  --warning: #f59e0b;
  --border: #222222;
  --border-light: #333333;
  --gradient-start: #06b6d4;
  --gradient-end: #f59e0b;
  --radius: 12px;
  --radius-sm: 8px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Header */
header {
  text-align: center;
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.logo-icon {
  font-size: 2.5rem;
}

.logo h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Sections */
section {
  margin-bottom: 3rem;
}

section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

/* Intro */
.intro {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  text-align: center;
}

.intro p {
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* Gates Grid */
.gates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

/* Gate Card */
.gate-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all 0.2s ease;
}

.gate-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.gate-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.gate-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.gate-markup {
  background: var(--success);
  color: #000;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
}

.gate-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.gate-urls {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.gate-url {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.gate-url-label {
  color: var(--text-muted);
  min-width: 45px;
}

.gate-url a {
  color: var(--accent);
  word-break: break-all;
}

.gate-providers {
  margin-bottom: 1rem;
}

.gate-providers-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.gate-models {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.model-tag {
  background: var(--bg-hover);
  color: var(--text-secondary);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  border: 1px solid var(--border);
}

/* Status Badge (for future use) */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.status-dot.offline {
  background: var(--warning);
}

/* CTA Section */
.cta-section {
  text-align: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
}

.cta-section p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(121, 40, 202, 0.4);
  text-decoration: none;
  color: white;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
  text-decoration: none;
  color: var(--text-primary);
}

/* Footer */
footer {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

footer p {
  margin-bottom: 0.5rem;
}

.copyright {
  color: var(--text-muted);
}

/* Loading State */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.loading-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Error State */
.error {
  text-align: center;
  padding: 2rem;
  color: var(--warning);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  header {
    padding: 2rem 0 1.5rem;
    margin-bottom: 2rem;
  }

  .logo h1 {
    font-size: 2rem;
  }

  .tagline {
    font-size: 1rem;
  }

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

  .gate-card {
    padding: 1.25rem;
  }

  .cta-section {
    padding: 1.5rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}