/* ============================================================
   RassIntel — Base
   Reset, fonts, typography, layout primitives, motion ground.
   ============================================================ */

/* ---- Fonts (self-hosted latin subsets) ---- */
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url("../assets/fonts/montserrat-latin-900-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/inter-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/inter-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/inter-latin-600-normal.woff2") format("woff2");
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--teal-700); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--green-700); }

/* ---- Headings ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: var(--leading-tight);
  letter-spacing: -0.015em;
  text-wrap: balance;
}
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }
p { max-width: var(--max-w-text); }

/* ---- Accessibility ---- */
:focus-visible {
  outline: 3px solid var(--teal-500);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -10rem;
  z-index: 200;
  padding: var(--space-3) var(--space-5);
  background: var(--navy-900);
  color: var(--snow);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus-visible { top: var(--space-4); color: var(--snow); }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---- Layout primitives ---- */
.wrap {
  width: 100%;
  max-width: calc(var(--max-w) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.band { padding-block: var(--space-band); }
.band--light { background: var(--white); color: var(--ink); }
.band--paper { background: var(--paper); color: var(--ink); }
.band--dark { background: var(--navy-900); color: var(--snow); }
.band--dark p { color: var(--snow-soft); }
.band--dark h1, .band--dark h2, .band--dark h3 { color: var(--snow); }

/* Section kicker: mono microcopy, Mission Control accent */
.kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--teal-700);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.kicker::before {
  content: "";
  width: 2rem; height: 1px;
  background: var(--grad-intel);
}
.band--dark .kicker { color: var(--teal-500); }
.band--dark .kicker::before { background: var(--grad-emphasis); }

.section-head { margin-bottom: var(--space-7); }
.section-head p {
  margin-top: var(--space-4);
  font-size: var(--text-md);
  color: var(--ink-soft);
}
.band--dark .section-head p { color: var(--snow-soft); }

/* Gradient text emphasis (lime→teal moments) */
.grad-text {
  background: var(--grad-intel);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.band--dark .grad-text { background: var(--grad-intel-dark); -webkit-background-clip: text; background-clip: text; }

/* ---- Scroll reveal (JS adds .is-visible) ---- */
.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---- Reduced motion: kill all animation & transforms ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}