/* abstech.my.id — page styles on abstech UI tokens. No hex values here. */

html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { background: var(--ab-bg); }

.skip { position: absolute; left: var(--ab-space-4); top: -100px; z-index: 20; background: var(--ab-surface); padding: var(--ab-space-2) var(--ab-space-3); border-radius: var(--ab-radius-sm); }
.skip:focus { top: var(--ab-space-3); }

/* ---------- Header: fixed 64 px, never changes height ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 10;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ab-space-4);
  padding: 0 max(var(--ab-space-4), calc((100vw - 72rem) / 2));
}
.site-header__bar {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: color-mix(in srgb, var(--ab-bg) 86%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--ab-line);
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ab-text);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--ab-text-lg);
  letter-spacing: -0.02em;
  transform-origin: left center;
}
.site-header__brand:hover { text-decoration: none; }
.site-header__brand .ab-mark { width: 26px; height: 26px; }
.site-header__nav { display: flex; align-items: center; gap: var(--ab-space-5); font-size: var(--ab-text-sm); }
.site-header__nav a { color: var(--ab-muted); text-decoration: none; }
.site-header__nav a:hover { color: var(--ab-text); }
.site-header__nav .site-header__signin { color: var(--ab-brand); font-weight: 600; }
@media (max-width: 600px) {
  .site-header__nav a:not(.site-header__signin) { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: max(560px, 92vh);
  min-height: max(560px, 92svh);
  display: grid;
  place-items: center;
  padding: 112px var(--ab-space-4) var(--ab-space-7);
  overflow: hidden;
  isolation: isolate;
}
.anchor { position: absolute; top: 0; }
#field { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; }
.hero::after {
  /* soft fade at the bottom so the field melts into the page */
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 160px;
  z-index: -1;
  background: linear-gradient(to bottom, transparent, var(--ab-bg));
  pointer-events: none;
}
.hero__inner { width: 100%; max-width: 44rem; text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero-mark { width: 96px; height: 96px; margin-bottom: var(--ab-space-5); color: var(--ab-text); }
.wordmark {
  margin: 0;
  font-size: clamp(64px, 14vw, 120px);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--ab-text);
}
.wordmark span { display: inline-block; }
.tagline { margin: var(--ab-space-4) 0 0; font-size: clamp(20px, 3.2vw, 26px); color: var(--ab-brand); font-weight: 600; letter-spacing: -0.01em; }
.lede { margin: var(--ab-space-4) 0 0; max-width: 34rem; font-size: var(--ab-text-lg); line-height: 1.6; color: var(--ab-muted); }
.hero__cta {
  margin-top: var(--ab-space-6);
  display: inline-flex;
  align-items: center;
  gap: var(--ab-space-2);
  min-height: 44px;
  padding: 0 var(--ab-space-5);
  border-radius: 999px;
  border: 1px solid var(--ab-line);
  background: var(--ab-surface);
  color: var(--ab-text);
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--ab-shadow);
  transition: border-color .2s ease, transform .2s ease;
}
.hero__cta:hover { text-decoration: none; border-color: var(--ab-brand); transform: translateY(-1px); }
.hero__cta span { color: var(--ab-brand); }

/* ---------- Sections ---------- */
.section { padding: var(--ab-space-7) var(--ab-space-4) calc(var(--ab-space-7) * 2); }
.section__inner { max-width: 72rem; margin: 0 auto; }
.eyebrow { margin: 0 0 var(--ab-space-2); font-size: var(--ab-text-xs); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ab-brand); }
.section h2 { margin: 0 0 var(--ab-space-6); font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.02em; }

.family { display: grid; gap: var(--ab-space-4); grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); }
.family-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--ab-space-5);
  background: var(--ab-surface);
  border: 1px solid var(--ab-line);
  border-radius: 12px;
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.family-card:hover, .family-card:focus-within { border-color: var(--ab-brand); box-shadow: var(--ab-shadow); transform: translateY(-2px); }
.family-card .ab-mark { width: 40px; height: 40px; margin-bottom: var(--ab-space-5); color: var(--ab-text); }
.family-card h3 { margin: 0 0 var(--ab-space-2); font-size: var(--ab-text-lg); }
.family-card p { margin: 0; color: var(--ab-muted); font-size: var(--ab-text-sm); line-height: 1.6; flex: 1; }
.family-card__link { margin-top: var(--ab-space-4); font-weight: 600; font-size: var(--ab-text-sm); text-decoration: none; }
.family-card__link::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }

.section--how { background: var(--ab-surface); border-top: 1px solid var(--ab-line); border-bottom: 1px solid var(--ab-line); }
.principles { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--ab-space-6); grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); counter-reset: p; }
.principles li { position: relative; padding-top: var(--ab-space-5); counter-increment: p; }
.principles li::before { content: ""; position: absolute; top: 0; left: 0; width: 14px; height: 14px; border-radius: 3px; background: var(--ab-brand); }
.principles h3 { margin: 0 0 var(--ab-space-2); font-size: var(--ab-text-lg); }
.principles p { margin: 0; color: var(--ab-muted); line-height: 1.6; }

/* ---------- Footer ---------- */
.site-footer { padding: var(--ab-space-6) var(--ab-space-4); }
.site-footer__inner { max-width: 72rem; margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; gap: var(--ab-space-2) var(--ab-space-5); color: var(--ab-muted); font-size: var(--ab-text-sm); }
.site-footer__brand { display: inline-flex; align-items: center; gap: var(--ab-space-2); color: var(--ab-text); font-weight: 600; letter-spacing: -0.02em; margin-right: auto; }
.site-footer__brand .ab-mark { width: 20px; height: 20px; }
.site-footer a { color: var(--ab-muted); }

/* =================================================================
   Motion. Only transform and opacity move. The intro is CSS only, so
   it also plays without JavaScript; the rest waits for the .js class.
   ================================================================= */
@keyframes ab-draw { from { stroke-dashoffset: 1; opacity: 0; } 6% { opacity: 1; } to { stroke-dashoffset: 0; opacity: 1; } }
@keyframes ab-drop { from { transform: translateY(-28px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes ab-rise { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes ab-fade { from { opacity: 0; } to { opacity: 1; } }

.hero-mark .ab-mark__frame { stroke-dasharray: 1 1; animation: ab-draw 700ms cubic-bezier(.2, .7, .2, 1) both; }
.hero-mark .ab-mark__block { animation: ab-drop 500ms cubic-bezier(.34, 1.56, .64, 1) 600ms both; }
.wordmark span { animation: ab-rise 400ms cubic-bezier(.2, .7, .2, 1) both; }
.wordmark span:nth-child(1) { animation-delay: 900ms; }
.wordmark span:nth-child(2) { animation-delay: 940ms; }
.wordmark span:nth-child(3) { animation-delay: 980ms; }
.wordmark span:nth-child(4) { animation-delay: 1020ms; }
.wordmark span:nth-child(5) { animation-delay: 1060ms; }
.wordmark span:nth-child(6) { animation-delay: 1100ms; }
.wordmark span:nth-child(7) { animation-delay: 1140ms; }
.tagline, .lede, .hero__cta { animation: ab-fade 300ms ease-out 1300ms both; }

/* Set by site.js for its first two frames: no transitions while motion styles switch on. */
.js-init *, .js-init *::before, .js-init *::after { transition: none !important; }

/* Field fades in so its first frame never pops. */
.js #field { opacity: 0; transition: opacity 1.2s ease 600ms; }
.js #field[data-running="true"] { opacity: 1; }

/* Reveals */
.js [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 500ms ease, transform 500ms cubic-bezier(.2, .7, .2, 1); }
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* Header: transparent and slightly larger over the hero; a bar after the first scroll. */
.js .site-header__bar { opacity: 0; transition: opacity 300ms ease; }
.js .site-header.is-compact .site-header__bar { opacity: 1; }
.js .site-header__brand { transform: scale(1.15); transition: transform 300ms cubic-bezier(.2, .7, .2, 1); }
.js .site-header.is-compact .site-header__brand { transform: none; }

/* Family cards: the block lifts out of its corner; hover or focus puts it back. */
.family-card .ab-mark__block { transform: translate(6px, -6px); transition: transform 400ms cubic-bezier(.34, 1.56, .64, 1); }
.js .family-card:not(.is-lifted) .ab-mark__block,
.family-card:hover .ab-mark__block,
.family-card:focus-within .ab-mark__block { transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-mark .ab-mark__frame, .hero-mark .ab-mark__block, .wordmark span, .tagline, .lede, .hero__cta { animation: none; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .js #field { opacity: 1; }
  .family-card .ab-mark__block { transform: none; }
}