:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f4f4f5;
  --text-muted: #a1a1aa;
  --primary: #6366f1;
  --primary-light: #818cf8;
  --accent: #8b5cf6;
  --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --radius: 16px;
  --font: "Inter", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo img {
  width: 40px;
  height: 40px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
}

/* Hero */
.hero {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--primary-light);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 24px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  color: white;
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.45);
}

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

.btn-secondary:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Sections */
section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}

.service-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(99, 102, 241, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* About */
.about {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.stat {
  text-align: center;
  padding: 20px;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.about-card .avatar {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
}

.about-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.about-card .role {
  color: var(--primary-light);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.about-card p {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}

.contact-card .icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.contact-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-card p,
.contact-card a {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.contact-card a:hover {
  color: var(--primary-light);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 12px;
  max-width: 280px;
}

.footer-links h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* Policy pages */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

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

.policy-content {
  padding: 60px 0 80px;
  max-width: 720px;
  margin: 0 auto;
}

.policy-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 32px 0 12px;
}

.policy-content h2:first-child {
  margin-top: 0;
}

.policy-content p,
.policy-content li {
  color: var(--text-muted);
  margin-bottom: 12px;
}

.policy-content ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.policy-content .updated {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.policy-content h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 20px 0 10px;
  color: var(--text);
}

.policy-content strong {
  color: var(--text);
  font-weight: 600;
}

.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(236, 72, 153, 0.12);
  border: 1px solid rgba(236, 72, 153, 0.25);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #f472b6;
  margin-bottom: 20px;
}

.policy-placeholder {
  background: rgba(99, 102, 241, 0.08);
  border: 1px dashed rgba(99, 102, 241, 0.3);
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* Mobile */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-elevated);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }

  .nav.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}