:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-elev: #f6f7f9;
  --fg: #111827;
  --fg-muted: #5b6472;
  --border: #e5e7eb;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-fg: #ffffff;
  --ok: #047857;
  --err: #b91c1c;
  --radius: 12px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --bg-elev: #14171f;
    --fg: #e7e9ee;
    --fg-muted: #9aa3b2;
    --border: #262b36;
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-fg: #0b0d12;
    --ok: #34d399;
    --err: #f87171;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1.25rem; }

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

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 3.75rem; }
.brand { font-weight: 700; font-size: 1.125rem; color: var(--fg); letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.site-nav { display: flex; gap: 1.5rem; }
.site-nav a { color: var(--fg-muted); font-size: 0.9375rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--fg); text-decoration: none; }

/* Hero */
.hero { padding: 5rem 0 3.5rem; max-width: 46rem; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 1rem; }
.hero p.lede { font-size: 1.1875rem; color: var(--fg-muted); margin: 0 0 2rem; }

.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  border-radius: 8px;
  font-weight: 600; font-size: 0.9375rem;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
}
.btn svg { width: 1rem; height: 1rem; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost { border-color: var(--border); color: var(--fg); background: transparent; }
.btn-ghost:hover { border-color: var(--fg-muted); }

/* Sections & cards */
.section { padding: 3rem 0; }
.section h2 { font-size: 1.5rem; letter-spacing: -0.01em; margin: 0 0 0.5rem; }
.section > .wrap > p.sub, .section p.sub { color: var(--fg-muted); margin: 0 0 2rem; max-width: 40rem; }

.grid { display: grid; gap: 1.25rem; }
@media (min-width: 40rem) { .grid.cols-2 { grid-template-columns: 1fr 1fr; } }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.card h3 { margin: 0.75rem 0 0.375rem; font-size: 1.0625rem; }
.card p { margin: 0 0 0.75rem; color: var(--fg-muted); font-size: 0.9375rem; }
.card p:last-child { margin-bottom: 0; }

.icon-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem;
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}
.icon-badge svg { width: 1.125rem; height: 1.125rem; }

.product-card { display: flex; flex-direction: column; }
.product-card .links { margin-top: auto; display: flex; flex-wrap: wrap; gap: 1rem; padding-top: 0.5rem; }
.product-card .links a { display: inline-flex; align-items: center; gap: 0.375rem; font-weight: 600; font-size: 0.9375rem; }
.product-card .links svg { width: 0.9375rem; height: 0.9375rem; }

.tag {
  display: inline-block;
  font-size: 0.75rem; font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--fg-muted);
}

/* Notice banner (?sent=1) */
.notice-banner {
  border: 1px solid color-mix(in srgb, var(--ok) 40%, transparent);
  background: color-mix(in srgb, var(--ok) 8%, transparent);
  color: var(--ok);
  border-radius: var(--radius);
  padding: 0.875rem 1.125rem;
  margin-top: 1.5rem;
  font-size: 0.9375rem;
}

/* Contact form */
.contact-form { max-width: 36rem; }
.form-row { margin-bottom: 1rem; }
.contact-form label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 0.375rem; }
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.9375rem;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}
.contact-form textarea { min-height: 8rem; resize: vertical; }
.form-status { margin-top: 0.875rem; font-size: 0.9375rem; min-height: 1.4em; }
.form-status.ok { color: var(--ok); }
.form-status.err { color: var(--err); }

/* Legal pages */
.legal { max-width: 46rem; padding: 3rem 0; }
.legal h1 { font-size: 2rem; letter-spacing: -0.02em; margin: 0 0 0.25rem; }
.legal .updated { color: var(--fg-muted); font-size: 0.875rem; margin: 0 0 2rem; }
.legal h2 { font-size: 1.125rem; margin: 2rem 0 0.5rem; }
.legal p, .legal li { color: var(--fg-muted); }
.legal ul { padding-left: 1.25rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 4rem; }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem;
  align-items: center; justify-content: space-between;
  padding: 1.5rem 1.25rem;
}
.footer-inner p { margin: 0; color: var(--fg-muted); font-size: 0.875rem; }
.footer-inner nav { display: flex; gap: 1.25rem; }
.footer-inner nav a { color: var(--fg-muted); font-size: 0.875rem; }
.footer-inner nav a:hover { color: var(--fg); text-decoration: none; }