/* ============================================================================
   Safety Lab Aero — shared marketing identity ("Terminal", 11 Sep 2026).
   Loaded LAST on every public page (everything except the app itself) so it
   wins over each page's own inline styles. What it enforces, everywhere:
     · white page with the subtle blue→purple hue, black text (no grey text)
     · containers: white, 2px ink border, rounded corners
     · gradient brand line at the very top, under the nav, and above the footer
     · black table header rows with white text
     · gradient primary buttons
   Page-specific layout stays in each page; only the identity lives here.
   ========================================================================== */
:root{
  color-scheme:light;
  /* every alias the individual pages use for "muted" text or a hairline → ink */
  --text:#14171c; --text-muted:#14171c; --ink-muted:#14171c; --ink-body:#14171c;
  --mut:#14171c; --muted:#14171c; --body:#14171c; --ink:#14171c;
  --border-hair:#14171c; --border:#14171c; --line:#14171c; --hair:#14171c;
  --bg:#ffffff; --bg-soft:#ffffff; --bg-card:#ffffff; --card:#ffffff; --fill:#ffffff;
  --surf:#ffffff; --surf2:#ffffff;
  --r-md:9px; --r-lg:13px; --r-xl:16px;
  --sl-ink:#14171c;
  --sl-grad:linear-gradient(90deg,#007aff 0%,#af52de 100%);
  --sl-hue:linear-gradient(165deg,#e9edff 0%,#ffffff 46%,#f9f2ff 100%);
  --sl-black-hue:linear-gradient(135deg,#0a0c16 0%,#130f28 50%,#180e22 100%);
}
html{background:#f4f5ff !important;}
body{
  background:var(--sl-hue) !important; background-attachment:fixed !important;
  color:var(--sl-ink) !important;
  font-family:'IBM Plex Sans','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif !important;
}
body::before{content:"";position:fixed;top:0;left:0;right:0;height:3px;background:var(--sl-grad);z-index:2000;pointer-events:none;}
a{color:#1a6ef2;}

/* ── top bars: frosted white with the gradient line beneath */
.nav, header.top{
  background:rgba(255,255,255,0.82) !important;
  -webkit-backdrop-filter:saturate(160%) blur(14px); backdrop-filter:saturate(160%) blur(14px);
  border-bottom:3px solid transparent !important; border-image:var(--sl-grad) 1;
}
.nav-links a, header.top a.home{color:var(--sl-ink);}
/* dark heroes (trust / AI guardrails) keep the black hue; the wordmark is white on them */
.hero.hero--dark, header.hero{background:var(--sl-black-hue) !important;}

/* ── hero copy is centered on every page; nav/brand rows stay as rows */
.hero .eyebrow, .hero h1, .hero .lead, .hero > .container > p,
.page-hero .eyebrow, .page-hero h1, .page-hero .lede,
.hero-in .k, .hero-in h1, .hero-in > p, .hero-in .updated,
.wrap > h1, .wrap > .lede, main > h1, main > .sub{ text-align:center; }
.hero .lead, .page-hero .lede, .hero-in > p, .wrap > .lede{ margin-left:auto !important; margin-right:auto !important; }
.page-hero{border-bottom:0 !important;}

/* ── containers: white, 2px ink, rounded */
.calc, .out, .cta-band, .tpl, .tcard, .qa, .toc, .method, .driver, .posture, .card,
.boundary, .ex, .callout, .results{
  background:#ffffff; border:2px solid var(--sl-ink) !important; border-radius:13px !important;
  box-shadow:0 4px 12px rgba(20,23,28,.06), 0 8px 32px rgba(20,23,28,.06);
}
.results{background:#ffffff !important;}
.contact, .close{background:var(--sl-black-hue) !important; border:2px solid var(--sl-ink) !important; border-radius:13px !important; color:#fff;}
.close p, .contact p{color:#e7e1fa !important;}
.cons{border-radius:9px !important;}
.doc{border-top:4px solid transparent !important; border-image:var(--sl-grad) 1;}

/* form controls and pills */
input, select, textarea{border:1px solid var(--sl-ink) !important; border-radius:9px !important; background:#fff; color:var(--sl-ink);}
.seg{border:1px solid var(--sl-ink) !important; border-radius:9px !important;}
.seg button{color:var(--sl-ink);}
.related a{border:1px solid var(--sl-ink) !important; color:var(--sl-ink) !important; border-radius:999px !important;}
.badge, .v{border-radius:999px !important;}
code{border-radius:5px !important;}

/* ── tables: black header rows, white text, ink hairlines */
th{background:#0b0b0d !important; color:#ffffff !important; border-color:#0b0b0d !important;}
th:first-child{border-top-left-radius:8px;} th:last-child{border-top-right-radius:8px;}
td{border-bottom:1px solid rgba(20,23,28,.35) !important;}
.no{color:var(--sl-ink) !important; opacity:.55;}

/* ── buttons: the brand gradient */
.btn, .btn-primary, .nav-cta, .dl:not(.ghost), .roi{background:linear-gradient(135deg,#1a6ef2 0%,#af52de 100%) !important; color:#fff !important; border-radius:10px !important;}
.dl.ghost{border:1px solid var(--sl-ink) !important; color:var(--sl-ink) !important; border-radius:10px !important;}

/* ── footers: gradient line above, ink text */
footer, .foot, footer.legal{border-top:4px solid transparent !important; border-image:var(--sl-grad) 1; color:var(--sl-ink) !important;}
footer a, .foot a, .foot-links a, .foot-copy{color:var(--sl-ink) !important;}