:root {
  --bg-color: #0b0f19;
  --card-bg: #111827;
  --card-border: #1f2937;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent: #60a5fa;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  background-color: rgba(11, 15, 25, 0.9);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff;
  letter-spacing: -0.02em;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 1.5rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

nav a:hover {
  color: var(--text-main);
}

/* Buttons */
.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  padding: 0.85rem 1.75rem;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 0.85rem 1.75rem;
  background-color: transparent;
}

.btn-secondary:hover {
  border-color: var(--text-muted);
  background-color: rgba(255, 255, 255, 0.03);
}

.btn-sm {
  background-color: #1f2937;
  color: #fff !important;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

.btn-sm:hover {
  background-color: #374151;
}

.btn-large {
  font-size: 1.1rem;
  padding: 1rem 2rem;
}

/* Hero */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero-content {
  max-width: 800px;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent);
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* Services */
.services {
  padding: 5rem 0;
  border-top: 1px solid var(--card-border);
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--text-muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 2rem;
  border-radius: 12px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.4);
}

.icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

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

/* About */
.about {
  padding: 5rem 0;
  background-color: #0d1322;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.about-container {
  max-width: 750px;
}

.about-text h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.check-list {
  list-style: none;
}

.check-list li {
  color: var(--text-main);
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

/* CTA */
.cta {
  padding: 6rem 0;
  text-align: center;
}

.cta-container h2 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.cta-container p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--card-border);
  padding: 2rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero-actions {
    flex-direction: column;
  }
}