/* 7 Days to Air Intake: public pages (landing, privacy, terms, support, about).
 * Mint "Control Room" tokens from DESIGN.md. Standalone on purpose: these pages
 * must render without the app bundle. System fonts only; nothing is fetched. */
:root {
  color-scheme: dark;
  --bg: #0E1014; --panel: #161A21; --line: #262C37; --ink: #E9ECF2; --muted: #9AA3B5;
  --accent: #6EE7B7; --accent-strong: #6EE7B7; --on-accent-strong: #05281B; --edge: #5B6678;
  --font: 'IBM Plex Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --radius: 12px; --tap: 44px; --gutter: clamp(1.25rem, .8rem + 2vw, 2.5rem);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #F6F8F7; --panel: #FFFFFF; --line: #D9DEE4; --ink: #14181F; --muted: #5B6475;
    --accent: #0F9F6E; --accent-strong: #0B7A55; --on-accent-strong: #FFFFFF; --edge: #7D8696;
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #F6F8F7; --panel: #FFFFFF; --line: #D9DEE4; --ink: #14181F; --muted: #5B6475;
  --accent: #0F9F6E; --accent-strong: #0B7A55; --on-accent-strong: #FFFFFF; --edge: #7D8696;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 1rem/1.65 var(--font);
  -webkit-font-smoothing: antialiased; }
a { color: var(--accent-strong); text-underline-offset: .2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent-strong); outline-offset: 3px; border-radius: 4px; }
p { margin: 0; text-wrap: pretty; }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -.02em; text-wrap: balance; }
.wrap { width: min(100% - 2 * var(--gutter), 68rem); margin-inline: auto; }
.skip { position: absolute; left: var(--gutter); top: -4rem; z-index: 10; padding: .75rem 1rem;
  background: var(--panel); color: var(--ink); border: 1px solid var(--edge); border-radius: var(--radius); }
.skip:focus { top: .75rem; }

/* header */
.site-header { border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; }
.wordmark { display: inline-flex; align-items: baseline; gap: .6rem; min-height: var(--tap); align-items: center;
  font-weight: 700; font-size: 1.125rem; letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.wordmark b { color: var(--accent-strong); font-weight: 700; }
.wordmark small { font: 500 .6875rem/1 var(--mono); letter-spacing: .12em; color: var(--muted);
  border: 1px solid var(--edge); border-radius: 4px; padding: .25rem .4rem; }
.nav { display: flex; align-items: center; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.nav a { display: inline-flex; align-items: center; min-height: var(--tap); padding: 0 .75rem; color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 1.5rem;
  border-radius: var(--radius); font-weight: 600; text-decoration: none; border: 2px solid transparent; }
.btn-primary { background: var(--accent-strong); color: var(--on-accent-strong); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-quiet { border-color: var(--edge); color: var(--ink); }

/* labels */
.label { font: 500 .75rem/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }

/* landing */
.hero { padding-block: clamp(3rem, 2rem + 6vw, 7rem) clamp(2.5rem, 2rem + 3vw, 4.5rem); }
.hero h1 { font-size: clamp(2.25rem, 1.4rem + 3.6vw, 4rem); max-width: 17ch; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--accent-strong); }
.hero .lede { margin-top: 1.5rem; max-width: 52ch; font-size: clamp(1.0625rem, 1rem + .35vw, 1.25rem); color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1rem; margin-top: 2rem; }
.hint { margin-top: 1rem; color: var(--muted); font-size: .9375rem; }
.points { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.points li { display: grid; grid-template-columns: 3rem 1fr; gap: .25rem 1rem; padding-block: 1.5rem; border-bottom: 1px solid var(--line); }
.points .n { font: 500 .8125rem/1.9 var(--mono); color: var(--accent-strong); font-variant-numeric: tabular-nums; }
.points h2 { font-size: 1.25rem; letter-spacing: -.01em; }
.points p { grid-column: 2; color: var(--muted); max-width: 60ch; }
@media (min-width: 56rem) {
  .points { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 0; gap: 0; }
  .points li { grid-template-columns: 1fr; padding: 1.75rem 1.75rem 2rem 0; border-top: 1px solid var(--line); border-bottom: 0; }
  .points li + li { padding-left: 1.75rem; border-left: 1px solid var(--line); }
  .points p { grid-column: 1; }
}
.talk { margin-block: 2.5rem 4rem; padding: 1.5rem; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.talk h2 { font-size: 1.125rem; }
.talk p { margin-top: .5rem; color: var(--muted); max-width: 60ch; }
.ph { font-family: var(--mono); font-size: .9em; color: var(--ink); background: var(--bg); border: 1px dashed var(--edge); border-radius: 4px; padding: .05em .4em; }

/* documents */
.doc { max-width: 44rem; padding-block: clamp(2.5rem, 2rem + 3vw, 4.5rem) 2rem; }
.doc h1 { font-size: clamp(1.875rem, 1.4rem + 2vw, 2.75rem); }
.doc .lede { margin-top: 1rem; color: var(--muted); font-size: 1.125rem; }
.doc .updated { margin-top: .75rem; font: 500 .75rem/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.doc h2 { font-size: 1.25rem; letter-spacing: -.01em; margin: 2.5rem 0 .6rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.doc h3 { font-size: 1rem; margin: 1.5rem 0 .4rem; }
.doc p + p, .doc p + ul, .doc ul + p { margin-top: .9rem; }
.doc ul, .doc ol { padding-left: 1.25rem; margin: .9rem 0 0; }
.doc li + li { margin-top: .45rem; }
.doc li > p { display: inline; }
.callout { margin: 1.5rem 0 0; padding: 1rem 1.25rem; background: var(--panel); border: 1px solid var(--line);
  border-left: 3px solid var(--accent); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: .9375rem; }
.table th, .table td { text-align: left; vertical-align: top; padding: .65rem .75rem .65rem 0; border-bottom: 1px solid var(--line); }
.table th { font: 500 .75rem/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.table-scroll { overflow-x: auto; }
.table td:first-child { font-weight: 600; white-space: nowrap; }

/* footer */
.site-footer { margin-top: 3rem; border-top: 1px solid var(--line); padding-block: 1.75rem 3rem; color: var(--muted); font-size: .9375rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: .5rem 2rem; justify-content: space-between; align-items: center; }
.site-footer ul { display: flex; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.site-footer a { display: inline-flex; align-items: center; min-height: var(--tap); padding: 0 .6rem; color: var(--muted); }
.site-footer a:hover { color: var(--ink); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }
@media print { .site-header, .site-footer, .skip { display: none; } }

/* narrow screens: keep the header on one line */
.wordmark, .wordmark span, .nav a { white-space: nowrap; }
.points li { align-content: start; }
@media (max-width: 36rem) { .nav li:not(:last-child) { display: none; } }

/* hero brief sample */
.hero-grid { display: grid; gap: 2.5rem; align-items: center; }
.brief { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; }
.brief dl { margin: 1rem 0 0; display: grid; gap: 0; }
.brief dl > div { padding-block: .85rem; border-top: 1px solid var(--line); }
.brief dd { margin: .3rem 0 0; font-size: .9375rem; }
.chip { margin-left: .5rem; padding: .15rem .4rem; border: 1px solid var(--accent-strong); border-radius: 4px; color: var(--accent-strong); font-size: .6875rem; letter-spacing: .08em; }
.brief-note { margin-top: .5rem; padding-top: .85rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }
@media (min-width: 56rem) { .hero-grid { grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); } }