/* ============================================================
   Bridgewire — Base: fonts, reset, typography, layout primitives
   ============================================================ */

/* — Self-hosted fonts (variable, OFL) — */
@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 300 640;
  font-display: swap;
  src: url("/fonts/fraunces.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("/fonts/inter.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("/fonts/jbmono.woff2") format("woff2");
}

/* — Reset — */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  background: var(--bg);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-feature-settings: "kern", "liga", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
  min-height: 100dvh;
}

img, picture, svg, video { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: var(--radius-sm); }

/* — Film-grain / atmosphere overlay — */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* — Typography primitives — */
.display {
  font-family: var(--font-display);
  font-weight: 340;
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: -0.018em;
  color: var(--ink);
  font-optical-sizing: auto;
}
.h2 {
  font-family: var(--font-display);
  font-weight: 360;
  font-size: var(--fs-h2);
  line-height: var(--lh-snug);
  letter-spacing: -0.014em;
  color: var(--ink);
}
.h3 {
  font-family: var(--font-display);
  font-weight: 420;
  font-size: var(--fs-h3);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.lead {
  font-size: var(--fs-lead);
  line-height: 1.4;
  color: var(--ink);
  font-weight: 400;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.metric {
  font-family: var(--font-display);
  font-weight: 340;
  font-size: var(--fs-metric);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: lining-nums;
}
.muted { color: var(--ink-dim); }

/* — Layout primitives — */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--space-section); }
.stack > * + * { margin-top: 1.15em; }

.hairline { height: 1px; background: var(--line-soft); border: 0; }

/* — Accessibility helpers — */
.skip-link {
  position: fixed; top: 0; left: 50%; transform: translateX(-50%) translateY(-120%);
  background: var(--accent); color: var(--accent-ink);
  padding: 0.7rem 1.2rem; font-family: var(--font-mono); font-size: 0.8rem;
  letter-spacing: 0.1em; text-transform: uppercase; z-index: 10000;
  transition: transform var(--dur-fast) var(--ease);
}
.skip-link:focus { transform: translateX(-50%) translateY(0); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* — Scroll-reveal (progressive enhancement; JS adds .reveal-ready to <html>) — */
.reveal-ready [data-reveal] { opacity: 0; transform: translateY(22px); }
.reveal-ready [data-reveal].is-in {
  opacity: 1; transform: none;
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
@media (prefers-reduced-motion: reduce) {
  .reveal-ready [data-reveal] { opacity: 1; transform: none; }
}