/* ============================================================
   10-BASE.CSS — reset, elemen, tipografi dasar, aksesibilitas
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--sa-hitam);
  color: var(--sa-fg);
  font-family: var(--sa-font-body);
  font-size: var(--sa-fs-body);
  line-height: var(--sa-lh-body);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ---------- Heading ---------- */
h1, h2, h3, h4 {
  font-family: var(--sa-font-display);
  margin: 0;
  text-wrap: balance;
  color: var(--sa-fg);
}

h1 {
  font-size: var(--sa-fs-hero);
  font-variation-settings: 'wdth' 118, 'wght' 800;
  letter-spacing: -.035em;
  line-height: var(--sa-lh-hero);
}
h2 {
  font-size: var(--sa-fs-h2);
  font-variation-settings: 'wdth' 118, 'wght' 800;
  letter-spacing: -.03em;
  line-height: var(--sa-lh-h2);
}
h3 {
  font-size: var(--sa-fs-h3);
  font-variation-settings: 'wdth' 100, 'wght' 700;
  letter-spacing: -.01em;
  line-height: var(--sa-lh-h3);
}

p { margin: 0 0 var(--sa-space-4); max-width: var(--sa-measure); }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-underline-offset: .22em; }

img, video, svg, picture { display: block; max-width: 100%; height: auto; }

ul, ol { margin: 0; padding: 0; list-style: none; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* ---------- Focus ---------- */
:focus-visible {
  outline: 3px solid var(--sa-focus);
  outline-offset: 2px;
}
:focus:not(:focus-visible) { outline: none; }

/* ---------- Skip link ---------- */
.sa-skip {
  position: absolute;
  left: var(--sa-space-4);
  top: -100px;
  z-index: 999;
  background: var(--sa-hitam);
  color: var(--sa-putih-teks);
  padding: var(--sa-space-3) var(--sa-space-5);
  font-family: var(--sa-font-display);
  font-variation-settings: 'wdth' 70, 'wght' 600;
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: var(--sa-fs-label);
  transition: top var(--sa-dur-micro) var(--sa-ease-out);
}
.sa-skip:focus { top: var(--sa-space-4); }

/* ---------- Utilitas tipografi bernama ---------- */
.sa-eyebrow {
  font-family: var(--sa-font-display);
  font-variation-settings: 'wdth' 70, 'wght' 600;
  font-size: var(--sa-fs-label);
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--sa-fg-muted);
  margin: 0 0 var(--sa-space-4);
  display: block;
}
.sa-lead {
  font-size: var(--sa-fs-lead);
  line-height: 1.5;
  color: var(--sa-fg);
  max-width: 46ch;
}
.sa-meta {
  font-family: var(--sa-font-display);
  font-variation-settings: 'wdth' 70, 'wght' 600;
  font-size: var(--sa-fs-label);
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--sa-fg-muted);
}
.sa-num {
  font-family: var(--sa-font-display);
  font-variation-settings: 'wdth' 82, 'wght' 700;
  font-variant-numeric: tabular-nums;
}

/* ---------- Grain overlay ---------- */
.sa-grain::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: var(--sa-grain);
  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='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}