/* roundxer.com — same tokens as the app (src/ui/theme.ts, CLAUDE.md §8).
   Red and amber stay reserved for the app's two flags: not used here. */

@font-face { font-family: 'Plex'; src: url('/assets/fonts/IBMPlexSans_400Regular.ttf') format('truetype'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Plex'; src: url('/assets/fonts/IBMPlexSans_600SemiBold.ttf') format('truetype'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Plex Mono'; src: url('/assets/fonts/IBMPlexMono_400Regular.ttf') format('truetype'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Fraunces'; src: url('/assets/fonts/Fraunces_600SemiBold.ttf') format('truetype'); font-weight: 600; font-display: swap; }

:root {
  --ground: #F6F4EF;
  --surface: #FFFFFF;
  --line: #E3DFD6;
  --ink: #1C2430;
  --text-2: #3D4A5C;
  --muted: #5B6573;
  --accent: #1F4E79;
  --accent-soft: #E6EEF6;
  --navy: #0F2746;
  --cream: #FBF6E9;
  --cream-2: #E8E1CF;
  --radius-card: 14px;
  --radius-btn: 12px;
  --wrap: 1080px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #12161C;
    --surface: #1B2129;
    --line: #2E3642;
    --ink: #E8ECF1;
    --text-2: #C4CBD5;
    --muted: #8E99A8;
    --accent: #8AB8E6;
    --accent-soft: #1D3148;
    --navy: #0B1C33;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 17px/1.6 'Plex', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, summary:focus-visible, .btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; }
h1, h2 { font-family: 'Fraunces', Georgia, serif; font-weight: 600; letter-spacing: 0.2px; }
h2 { font-size: clamp(28px, 4vw, 38px); }
h3 { font-size: 19px; font-weight: 600; }
p { margin: 0 0 1em; }
.mono, .label { font-family: 'Plex Mono', ui-monospace, Consolas, monospace; }
.label { font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; display: block; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 20px; }

/* ---- header ---- */
.site-header { background: var(--navy); color: var(--cream); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--cream); text-decoration: none; font-family: 'Fraunces', Georgia, serif; font-size: 22px; font-weight: 600; }
.brand img { width: 38px; }
.nav { display: flex; gap: 20px; flex-wrap: wrap; }
.nav a { color: var(--cream-2); text-decoration: none; font-size: 15px; padding: 10px 0; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--cream); text-decoration: underline; }

/* ---- hero ---- */
.hero { background: var(--navy); color: var(--cream); padding-block: 40px 64px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(40px, 6vw, 64px); margin-bottom: 12px; }
.hero .lead { font-size: clamp(19px, 2.2vw, 23px); color: var(--cream-2); max-width: 34ch; margin-bottom: 28px; }
.hero .note { font-size: 14px; color: var(--cream-2); margin-top: 14px; }
.hero .note a { color: var(--cream); }
.phone { justify-self: center; width: min(300px, 80vw); border-radius: 36px; padding: 10px; background: #0A1628; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35); }
.phone img { border-radius: 28px; }

.buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 10px 20px; border-radius: var(--radius-btn);
  font-weight: 600; font-size: 16px; text-decoration: none; border: 2px solid transparent;
}
.btn-cream { background: var(--cream); color: #0F2746; }
.btn-cream:hover { background: #FFFFFF; }
.btn-ghost { border-color: rgba(251, 246, 233, 0.45); color: var(--cream); }
.btn-ghost:hover { border-color: var(--cream); }
.btn-accent { background: var(--accent); color: var(--surface); }
.btn-accent:hover { filter: brightness(1.1); }
.btn-outline { border-color: var(--line); color: var(--accent); background: var(--surface); }
.btn[aria-disabled="true"] { opacity: 0.6; cursor: default; }

/* ---- sections ---- */
section { padding-block: 64px; }
.alt { background: var(--surface); border-block: 1px solid var(--line); }
.intro { max-width: 62ch; color: var(--text-2); font-size: 18px; margin-bottom: 32px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 22px; }
.alt .card { background: var(--ground); }
.card p { color: var(--text-2); margin: 0; font-size: 16px; }

.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 36px; }
.shots figure { margin: 0; }
.shots img { border-radius: 18px; border: 1px solid var(--line); }
.shots figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; text-align: center; }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); }
.checks li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 16px 18px 16px 50px; position: relative; color: var(--text-2); }
.checks li strong { color: var(--ink); }
.checks li::before { content: '✓'; position: absolute; left: 18px; top: 14px; font-weight: 600; color: var(--accent); font-size: 18px; }

.it { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; background: var(--accent-soft); border-radius: var(--radius-card); padding: 28px; }
.it p { margin: 0; color: var(--text-2); }

.platforms { display: grid; gap: 18px; grid-template-columns: repeat(4, 1fr); }
.platform { display: flex; flex-direction: column; gap: 10px; }
.platform .status { font-size: 14px; color: var(--muted); flex: 1; }
.platform .btn { width: 100%; }

details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 4px 20px; margin-bottom: 12px; }
.alt details { background: var(--ground); }
summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style-position: outside; }
details p { color: var(--text-2); }

/* ---- text pages ---- */
.page { padding-block: 48px 72px; }
.page .wrap { max-width: 780px; }
.page h1 { font-size: clamp(34px, 5vw, 48px); }
.page h2 { font-size: 26px; margin-top: 1.6em; }
.page ul { padding-left: 1.2em; color: var(--text-2); }
.page li { margin-bottom: 0.5em; }
.page p { color: var(--text-2); }
.updated { font-size: 14px; color: var(--muted); }
.callout { background: var(--accent-soft); border-radius: var(--radius-card); padding: 18px 20px; margin: 24px 0; color: var(--ink); }
.callout p:last-child { margin: 0; }

/* ---- footer ---- */
.site-footer { background: var(--navy); color: var(--cream-2); padding-block: 36px; font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer a { color: var(--cream); }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer p { margin: 0; }

/* ---- small screens ---- */
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 36px; }
  .platforms { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding-block: 48px; }
  .grid, .checks, .shots, .platforms { grid-template-columns: 1fr; }
  .shots { max-width: 320px; margin-inline: auto; }
  .it { grid-template-columns: 1fr; }
  .nav { gap: 14px; }
  .buttons .btn { flex: 1 1 100%; }
}

.h2-small { font-size: 26px; }
.fineprint { margin-top: 18px; font-size: 14px; color: var(--muted); }