/* ============================================================
   Kneuralabs — Base / reset
   ============================================================ */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-feature-settings: "ss01", "cv11";
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-height) + 12px);
}

html, body { overflow-x: clip; max-width: 100%; }

body {
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 420ms var(--ease-out), color 420ms var(--ease-out);
}

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

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

::selection { background: var(--ink); color: var(--paper); }
html[data-theme="dark"] ::selection { background: var(--accent); color: var(--on-accent); }

h1, h2, h3, h4, p { margin: 0; }

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

/* ── Frame / container ── */
.frame {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 980px) { .frame { padding: 0 28px; } }
@media (max-width: 720px) { .frame { padding: 0 24px; } }
@media (max-width: 480px) { .frame { padding: 0 22px; } }

/* ── Skip link ── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ── Scroll progress ── */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 60;
  pointer-events: none;
}

main { position: relative; }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .sr, .reveal-char { opacity: 1 !important; transform: none !important; filter: none !important; }
}