/* ============================================================
   base.css — reset, typography, global primitives
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Subtle cold vignette so the shader mesh reads as depth, not flat color */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% -10%, transparent 55%, rgba(0, 0, 0, 0.55) 100%),
    linear-gradient(180deg, rgba(5,5,6,0.2) 0%, transparent 25%, transparent 70%, rgba(5,5,6,0.55) 100%);
}

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-bg);
  display: block;
}

img, canvas { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: #04121a; }

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

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 100;
  background: var(--accent);
  color: #04121a;
  padding: 0.6rem 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: top var(--dur-fast) var(--ease-out-expo);
}
.skip-link:focus { top: 1rem; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #1a1e22; border: 2px solid var(--bg); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #262b30; }

/* --- Reveal system (JS toggles .is-visible) --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity var(--dur) var(--ease-out-expo),
    transform var(--dur) var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}
[data-reveal].is-visible { opacity: 1; transform: none; }

.reveal-line { display: block; overflow: hidden; }
.reveal-line > [data-reveal-text] {
  display: inline-block;
  transform: translateY(105%);
  transition: transform var(--dur-slow) var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0s);
  will-change: transform;
}
.hero__title.is-visible .reveal-line > [data-reveal-text] { transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .reveal-line > [data-reveal-text] { transform: none; }
}