:root {
  --bg-color: #0f172a;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-color: #38bdf8;
  --accent-hover: #0ea5e9;
  --card-bg: #1e293b;
  --border-color: #334155;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --nav-height: 64px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.text-center { text-align: center; }
.text-accent { color: var(--accent-color); }
.text-sm { font-size: 0.875rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 6px;
  font-weight: 600;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #0f172a;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

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

.btn-outline:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  background-color: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  height: var(--nav-height);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-item {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav-item:hover, .nav-item.active {
  color: var(--accent-color);
}

.lang-switch {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
}

/* Hero */
.hero {
  padding: 120px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 24px;
  background: linear-gradient(to right, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}

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

/* Section Headers */
.section-title {
  font-size: 2rem;
  margin-bottom: 16px;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 60px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Products Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  transition: transform 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-color);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.badge {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-live { background: rgba(16, 185, 129, 0.1); color: var(--success-color); }
.badge-beta { background: rgba(56, 189, 248, 0.1); color: var(--accent-color); }
.badge-soon { background: rgba(148, 163, 184, 0.1); color: var(--text-secondary); }

.card h3 { margin-bottom: 8px; font-size: 1.25rem; }
.card p { color: var(--text-secondary); font-size: 0.95rem; flex-grow: 1; margin-bottom: 20px; }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.feature-item {
  text-align: center;
  padding: 20px;
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: inline-block;
  color: var(--accent-color);
}

/* Roadmap */
.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  border-left: 2px solid var(--border-color);
  padding-left: 40px;
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: -49px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-color);
  border: 2px solid var(--accent-color);
}

.timeline-date {
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}

/* Footer & Legal */
.footer {
  background-color: #020617;
  padding: 60px 0 30px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.legal-notice {
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 40px;
  font-size: 0.85rem;
}

.legal-notice h4 {
  color: var(--warning-color);
  margin-bottom: 8px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}

.copyright {
  text-align: center;
  opacity: 0.6;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .nav-links { display: none; } /* Simplified for mobile: hide links */
  .hero-actions { flex-direction: column; }
}