:root {
  --bg: #ffffff;
  --bg-soft: #f8faff;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --primary: #3b82f6;
  --primary-strong: #2563eb;
  --accent: #8b5cf6;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--border);
}

.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.1px;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-links > a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.nav-links > a:hover {
  color: var(--primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  padding: 12px 18px;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.25);
}

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

.btn-secondary {
  border-color: var(--border);
  background: #fff;
  color: var(--text);
  padding: 12px 18px;
}

.btn-secondary:hover {
  border-color: #cbd5e1;
}

.btn-ghost {
  border-color: var(--border);
  padding: 9px 14px;
}

.hero {
  position: relative;
  isolation: isolate;
  padding: 70px 0 40px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 20%, rgba(59, 130, 246, 0.13) 0%, transparent 40%),
    radial-gradient(circle at 85% 0%, rgba(139, 92, 246, 0.12) 0%, transparent 35%),
    linear-gradient(180deg, #ffffff, #f8fbff 70%, #ffffff);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 800;
}

.hero h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: clamp(16px, 2.2vw, 20px);
}

.hero-actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-points {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  color: #1e293b;
}

.hero-points li::before {
  content: "✓";
  color: var(--primary);
  font-weight: 700;
  margin-right: 10px;
}

.hero-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.hero-panel h2 {
  margin: 0 0 14px;
  font-size: 20px;
}

.panel-stat {
  display: grid;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid #f1f5f9;
}

.panel-stat .value {
  font-weight: 700;
}

.panel-stat .label {
  color: var(--muted);
  font-size: 14px;
}

.panel-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--primary-strong);
  font-weight: 700;
}

.section {
  padding: 68px 0;
}

.section-alt {
  background: var(--bg-soft);
  border-top: 1px solid #edf2f7;
  border-bottom: 1px solid #edf2f7;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 30px;
  text-align: center;
}

.section-head.left {
  margin-left: 0;
  text-align: left;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(26px, 3.3vw, 40px);
  letter-spacing: -0.015em;
}

.section-head p {
  color: var(--muted);
  margin: 10px 0 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.timeline {
  max-width: 850px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.timeline li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}

.step {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.timeline h3 {
  margin: 2px 0 6px;
}

.timeline p {
  margin: 0;
  color: var(--muted);
}

code {
  background: #eef2ff;
  border: 1px solid #e0e7ff;
  color: #3730a3;
  border-radius: 6px;
  padding: 1px 6px;
}

.shot {
  margin: 0;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
}

.shot figcaption {
  padding: 14px 16px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--border);
}

.install-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.install-steps {
  margin: 0;
  padding-left: 18px;
}

.install-steps li {
  margin-bottom: 14px;
}

.install-steps h3 {
  margin: 0 0 6px;
}

pre {
  margin: 8px 0 0;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 10px;
  padding: 12px;
  overflow-x: auto;
}

pre code {
  all: unset;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}

.support-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.support-card h3 {
  margin: 0 0 10px;
}

.support-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.support-links {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.support-links a {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: #1d4ed8;
  font-weight: 600;
  font-size: 14px;
  text-align: center;
}

.support-links a:hover {
  background: #eff6ff;
}

.site-footer {
  background: #0f172a;
  color: #e2e8f0;
  padding: 36px 0;
}

.footer {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 20px;
}

.footer p {
  color: #94a3b8;
  max-width: 45ch;
}

.footer-brand {
  color: #fff;
  margin-bottom: 8px;
}

.footer-col {
  display: grid;
  gap: 6px;
  align-content: start;
}

.footer-col h4 {
  margin: 0 0 4px;
  color: #fff;
}

.footer-col a {
  color: #bfdbfe;
  font-size: 14px;
}

.footer-col a:hover {
  color: #fff;
}

@media (max-width: 980px) {
  .hero-grid,
  .install-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 720px) {
  .nav-links > a:not(.btn-ghost) {
    display: none;
  }

  .hero {
    padding-top: 44px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .timeline li {
    grid-template-columns: 1fr;
  }

  .support-links {
    grid-template-columns: 1fr;
  }

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