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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a26;
  --bg-card-hover: #22222f;
  --text-primary: #e8e8ed;
  --text-secondary: #9898a6;
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --max-width: 960px;
}

html {
  scroll-behavior: smooth;
}

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

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

a:hover {
  opacity: 0.8;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.logo span {
  color: var(--text-secondary);
  font-weight: 400;
}

.header-contact {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Hero */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* About */
.about {
  padding: 60px 0;
}

.about p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  line-height: 1.75;
}

/* Products */
.products {
  padding: 60px 0;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 32px;
  text-align: center;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 560px;
  margin: 0 auto;
  transition: background 0.2s;
}

.product-card:hover {
  background: var(--bg-card-hover);
}

.product-card h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.product-card p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.7;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  font-size: 0.95rem;
}

.product-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
}

.product-link:hover svg {
  transform: translateX(3px);
}

/* Contact */
.contact {
  padding: 80px 0;
  text-align: center;
}

.contact h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.contact p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.contact-email {
  display: inline-block;
  font-size: 1.1rem;
  font-weight: 500;
  padding: 12px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, background 0.2s;
}

.contact-email:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

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

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

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

/* Legal pages */
.legal {
  padding: 80px 0;
  max-width: 680px;
  margin: 0 auto;
}

.legal h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.legal .updated {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.legal h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 12px;
}

.legal p,
.legal ul {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.75;
}

.legal ul {
  padding-left: 24px;
}

.legal li {
  margin-bottom: 8px;
}

.legal a {
  color: var(--accent);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.back-link:hover {
  color: var(--text-primary);
}

/* Responsive */
@media (max-width: 600px) {
  .hero {
    padding: 60px 0 48px;
  }

  .product-card {
    padding: 28px;
  }

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

  .site-header .container {
    flex-direction: column;
    gap: 8px;
  }
}