:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3d;
  --text: #e8eaf0;
  --muted: #8b8fa8;
  --accent: #4f8ef7;
  --accent-dim: #2d5bbf;
  --green: #3ecf8e;
  --radius: 12px;
  --max-w: 960px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo svg { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  text-decoration: none;
}

/* MAIN CONTENT */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* HERO */
.hero {
  padding: 96px 0 80px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(79, 142, 247, 0.12);
  border: 1px solid rgba(79, 142, 247, 0.25);
  color: var(--accent);
  border-radius: 100px;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text) 60%, var(--muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: #5f9bff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(79, 142, 247, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--muted);
  text-decoration: none;
}

/* SECTION */
section {
  padding: 72px 0;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-sub {
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* DIVIDER */
.divider {
  border: none;
  border-top: 1px solid var(--border);
}

/* PRINCIPLES GRID */
.principles-list {
  list-style: none;
  padding: 0;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.principles-list li {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.6;
  padding-left: 16px;
  border-left: 2px solid var(--border);
}

/* PRODUCTS */
.products {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: start;
  transition: border-color 0.2s;
}

.product-card:hover {
  border-color: var(--accent-dim);
}

.product-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.product-name {
  font-size: 1.05rem;
  font-weight: 700;
}

.product-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(62, 207, 142, 0.12);
  border: 1px solid rgba(62, 207, 142, 0.25);
  color: var(--green);
  padding: 2px 8px;
  border-radius: 100px;
}

.product-desc {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 16px;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.feature-pill {
  font-size: 0.75rem;
  color: var(--muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 3px 10px;
}

.product-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

/* ABOUT PAGE */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-content p {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.about-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
}

/* PRIVACY PAGE */
.prose {
  max-width: 680px;
}

.prose h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 40px 0 12px;
  color: var(--text);
}

.prose h2:first-of-type { margin-top: 0; }

.prose p {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.prose ul {
  list-style: none;
  margin-bottom: 16px;
}

.prose ul li {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
  padding-left: 20px;
  position: relative;
}

.prose ul li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: 80px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text);
  text-decoration: none;
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .about-content { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .product-actions { flex-direction: row; }
  .hero { padding: 64px 0 56px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 0.8rem; }
  .nav-logo { font-size: 0.95rem; }
}