:root {
  --accent: #4082ff;
  --accent-dark: #2a5fea;
  --accent-light: #e8f0ff;
  --text: #1a1d24;
  --text-muted: #6b7280;
  --text-dim: #9ca3af;
  --bg: #fafbfc;
  --card: #ffffff;
  --border: #e6e8ec;
  --divider: #f0f2f5;
  --success: #10b981;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */

header {
  border-bottom: 1px solid var(--border);
  background: rgba(250, 251, 252, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 16px;
}
.brand:hover { color: var(--text); }
.brand-icon {
  width: 32px;
  height: 32px;
  display: inline-block;
  object-fit: contain;
  vertical-align: middle;
}
.nav-links a {
  margin-left: 24px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 14px;
}
.nav-links a:hover { color: var(--text); }

.lang-switcher {
  display: inline-flex;
  margin-left: 24px;
  background: var(--divider);
  padding: 2px;
  border-radius: 6px;
  gap: 1px;
}
.lang-switcher a {
  padding: 4px 9px;
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  border-radius: 4px;
  text-transform: uppercase;
}
.lang-switcher a:hover { color: var(--text); }
.lang-switcher a.active {
  background: var(--card);
  color: var(--accent);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

/* Hero */

.hero {
  padding: 80px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, #fff 0%, #f5f8ff 100%);
  border-bottom: 1px solid var(--border);
}
.hero-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent);
  background: var(--accent-light);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 56px;
  line-height: 1.1;
  font-weight: 800;
  margin: 0 0 24px;
  letter-spacing: -1.5px;
  color: var(--text);
}
.hero-sub {
  font-size: 19px;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
}
.hero-sub strong { color: var(--text); font-weight: 600; }
.hero-note {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-dim);
}

.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease, border-color 0.15s ease;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--card); border-color: var(--accent); color: var(--text); }

/* Features */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  padding: 60px 24px;
}
.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.feature-icon {
  font-size: 28px;
  margin-bottom: 12px;
}
.feature h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
}
.feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.55;
}

/* Install */

.install {
  padding: 60px 24px;
}
.install h2 {
  font-size: 32px;
  margin: 0 0 32px;
  text-align: center;
  letter-spacing: -0.5px;
}
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.steps li {
  counter-increment: step;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  position: relative;
}
.steps li::before {
  content: counter(step);
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
  opacity: 0.4;
}
.steps li strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}
.steps li p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

/* Pricing teaser */

.pricing-teaser {
  text-align: center;
  padding: 60px 24px;
  border-top: 1px solid var(--border);
}
.pricing-teaser h2 {
  font-size: 28px;
  margin: 0 0 32px;
  letter-spacing: -0.5px;
}
.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  max-width: 800px;
  margin: 0 auto 32px;
}
.plan {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: left;
}
.plan-featured {
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(64, 130, 255, 0.12);
}
.plan-name {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 8px;
}
.plan-price {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 16px;
}
.plan ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
}
.plan ul li {
  padding: 6px 0;
  border-bottom: 1px solid var(--divider);
}
.plan ul li:last-child { border: 0; }

/* Footer */

footer {
  background: #f5f7fa;
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  margin-top: 60px;
  font-size: 13px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 24px;
  padding-bottom: 32px;
}
.footer-grid h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin: 0 0 12px;
}
.footer-grid a {
  display: block;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.footer-grid a:hover { color: var(--text); }
.footer-tagline {
  margin: 12px 0 0;
  color: var(--text-muted);
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  color: var(--text-dim);
  text-align: center;
}

/* Article (privacy / terms) */

.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 24px;
}
.article h1 {
  font-size: 36px;
  letter-spacing: -0.5px;
  margin: 0 0 12px;
}
.article .updated {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 32px;
}
.article h2 {
  font-size: 22px;
  margin: 32px 0 12px;
  font-weight: 600;
}
.article h3 {
  font-size: 17px;
  margin: 20px 0 8px;
  font-weight: 600;
}
.article p, .article ul {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
}
.article ul {
  padding-left: 20px;
}
.article ul li { margin-bottom: 6px; }
.article strong { color: var(--text); }
.article code {
  background: var(--divider);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (max-width: 720px) {
  .hero h1 { font-size: 36px; }
  .hero-sub { font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links a { margin-left: 12px; font-size: 13px; }
}