:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --ink: #1b1b1b;
  --muted: #5f6368;
  --brand: #b71c1c;
  --brand-ink: #ffffff;
  --accent: #e2b44a;
  --accent-hover: #c99a36;
  --accent-ink: #161f4a;
  --border: #e5e7eb;
  --radius: 12px;
  --max-w: 1120px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.06);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 20px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
}

.site-nav {
  display: flex;
  gap: 24px;
}
.site-nav a {
  color: var(--muted);
  font-weight: 500;
}
.site-nav a:hover {
  color: var(--ink);
  text-decoration: none;
}

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

.hero {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px 0 64px;
}
.hero h1 {
  font-size: clamp(32px, 4vw, 48px);
  margin: 0 0 16px;
}
.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 24px;
}

.cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 22px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: transform 0.05s ease, background 0.2s ease;
}
.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn.primary:hover {
  background: var(--accent-hover);
  text-decoration: none;
}
.btn.ghost {
  color: var(--ink);
  border: 1px solid var(--border);
  background: var(--surface);
}
.btn.ghost:hover {
  border-color: var(--ink);
  text-decoration: none;
}

.muted {
  color: var(--muted);
}
.small {
  font-size: 0.9rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
}
.label-preview {
  background: var(--surface);
  border: 2px dashed #c2c2c2;
  border-radius: 10px;
  padding: 18px 20px;
  width: 280px;
  box-shadow: var(--shadow);
  font-family: 'Inter', monospace;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.label-preview strong {
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}
.label-preview span {
  color: var(--muted);
  font-size: 0.95rem;
}
.label-preview .lot {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.features,
.compat,
.contact {
  padding: 56px 0;
  border-top: 1px solid var(--border);
}
.features h2,
.compat h2,
.contact h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin: 0 0 24px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.grid article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.grid h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}
.grid p {
  margin: 0;
  color: var(--muted);
}

.chips {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.chips li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.chips span {
  font-weight: 700;
  color: var(--ink);
}
.chips small {
  color: var(--muted);
}

.contact p {
  max-width: 640px;
  color: var(--muted);
}

.site-footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px 24px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  text-align: center;
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 32px 0;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .site-nav {
    display: none;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --surface: #1a1a1a;
    --ink: #f5f5f5;
    --muted: #a0a0a0;
    --border: #2a2a2a;
  }
  .btn.ghost {
    background: var(--surface);
  }
  .label-preview {
    border-color: #3a3a3a;
  }
}