/* Layout concept: a product page that reads like a listing spec sheet: big before/after photo, mono spec rows, quiet sections. */
:root {
  --paper: #f5f7f6;
  --surface: #ffffff;
  --ink: #0f1f29;
  --muted: #56666e;
  --line: #d9e0dd;
  --accent: #0d7a6b;
  --accent-ink: #ffffff;
  --accent-soft: #e2f1ed;
  --dusk: #c9772b;
  --display: "Manrope", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 10px;
  --wrap: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0c151b; --surface: #13202a; --ink: #e6edef; --muted: #93a4ab; --line: #24343d;
    --accent: #3dbfa6; --accent-ink: #06231d; --accent-soft: #123a33; --dusk: #eba95a; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0c151b; --surface: #13202a; --ink: #e6edef; --muted: #93a4ab; --line: #24343d;
  --accent: #3dbfa6; --accent-ink: #06231d; --accent-soft: #123a33; --dusk: #eba95a; color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.6 var(--body); -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap {
  max-width: var(--wrap); margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
h1, h2, h3 { font-family: var(--display); line-height: 1.12; text-wrap: balance; margin: 0; letter-spacing: -0.015em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0; }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 60ch; }
.label {
  font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.09em; color: var(--muted);
}

/* Header */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--paper); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--display); font-weight: 800; font-size: 1.08rem; letter-spacing: -0.01em; }
.brand-mark { width: 26px; height: 26px; flex: none; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--ink); text-decoration: none; font-size: 0.94rem; }
.nav a:hover { color: var(--accent); }
@media (max-width: 640px) { .nav .hide-sm { display: none; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 8px; font: 600 0.98rem/1 var(--body); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background .15s, color .15s, border-color .15s;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 86%, var(--ink)); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 9px 14px; font-size: 0.9rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 96px; }
.site-footer .wrap { padding-block: 36px 48px; display: grid; gap: 18px; }
.footer-row { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: baseline; justify-content: space-between; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-links a { color: var(--ink); text-decoration: none; font-size: 0.92rem; }
.footer-links a:hover { color: var(--accent); }
.legal-line { color: var(--muted); font-size: 0.86rem; max-width: 80ch; }
.todo { background: color-mix(in srgb, var(--dusk) 22%, transparent); color: var(--ink); padding: 0 4px; border-radius: 3px; }

/* Legal pages */
.doc { max-width: 720px; padding-block: 56px 0; }
.doc h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin-bottom: 8px; }
.doc .updated { color: var(--muted); margin-bottom: 36px; }
.doc h2 { font-size: 1.2rem; margin: 34px 0 10px; }
.doc p, .doc li { color: var(--ink); }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 1.2em; margin: 10px 0 0; display: grid; gap: 6px; }
.doc .note { margin-top: 28px; padding: 14px 16px; border: 1px dashed var(--dusk); border-radius: var(--radius); font-size: 0.92rem; color: var(--muted); }