/* ARKVIVE — landing page
   Mengimpor design-system/tokens.css terlebih dahulu (lihat index.html).
   Font Archivo adalah pengganti usulan Arial dari design system; fallback tetap Arial. */

:root {
  --font-sans: "Archivo", Arial, Helvetica, sans-serif;
  --on-navy-muted: rgba(255, 255, 255, 0.72);
  --on-navy-line: rgba(255, 255, 255, 0.16);
  --on-navy-surface: rgba(255, 255, 255, 0.06);
  --header-h: 80px;
}

/* ---------- Reset ringan ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font: var(--text-body) / 1.6 var(--font-sans);
  font-optical-sizing: auto;
}
img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: var(--brand-blue); text-underline-offset: 4px; }
a:hover { color: var(--brand-navy); }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
.on-navy :focus-visible, .on-navy:focus-visible { outline-color: var(--brand-white); }
button { font: inherit; color: inherit; }

.skip {
  position: absolute; top: -80px; left: 16px; z-index: 50;
  background: var(--brand-white); color: var(--brand-navy);
  padding: 12px 16px; border-radius: var(--radius-control); font-weight: 600;
}
.skip:focus { top: 8px; }

.wrap { max-width: var(--content-max); margin-inline: auto; padding-inline: 24px; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0; padding: 0; margin: -1px;
}

/* ---------- Tipografi ---------- */
h1, h2, h3 { font-weight: 600; letter-spacing: -0.03em; text-wrap: balance; }
h1 { font-size: var(--text-display); line-height: 1.02; letter-spacing: -0.035em; }
h2 { font-size: var(--text-h2); line-height: 1.12; }
h3 { font-size: var(--text-h3); line-height: 1.25; }
.lead { font-size: var(--text-lead); line-height: 1.5; }
.muted { color: var(--color-muted); }
p { max-width: 62ch; }
.section-intro { max-width: 58ch; margin-top: var(--space-4); }

/* ---------- Tombol & badge (dari design system) ---------- */
.button {
  min-height: var(--control-height); padding: 12px 20px;
  border: 1px solid var(--color-primary); border-radius: var(--radius-control);
  background: var(--color-primary); color: var(--color-on-primary);
  font: 600 var(--text-small) / 1.4 var(--font-sans); text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  cursor: pointer; white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard);
}
.button:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: var(--color-on-primary); }
.button:active { background: var(--color-primary-active); border-color: var(--color-primary-active); }
.button.secondary { background: var(--brand-white); color: var(--color-primary); }
.button.secondary:hover { background: var(--color-surface); color: var(--color-primary); }
.button.secondary:active { background: var(--brand-grey); }
.button.ghost-light { background: transparent; color: var(--brand-white); border-color: rgba(255,255,255,.55); }
.button.ghost-light:hover { background: rgba(255,255,255,.1); border-color: var(--brand-white); color: var(--brand-white); }
.button.ghost-light:active { background: rgba(255,255,255,.18); }
.button.large { min-height: 52px; padding: 14px 24px; font-size: var(--text-body); }
.button[aria-busy="true"] { opacity: .7; pointer-events: none; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 10px 4px 8px; border-radius: var(--radius-pill);
  font-size: var(--text-small); font-weight: 500; line-height: 1.5;
}
.badge::before { content: ""; width: 8px; height: 8px; background: currentColor; clip-path: polygon(0 0, 100% 50%, 0 100%); }
.badge-hero { background: var(--on-navy-surface); color: var(--brand-white); border: 1px solid var(--on-navy-line); }

.actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: var(--brand-white);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-fast) var(--ease-standard);
}
.site-header.is-scrolled { border-bottom-color: var(--color-border); }
.site-header .wrap {
  min-height: var(--header-h); display: flex; align-items: center; gap: 32px;
}
.brand { display: inline-flex; align-items: center; min-height: 44px; }
.brand img { width: 152px; height: auto; }
.site-nav { margin-left: auto; }
.site-nav ul { display: flex; gap: 4px; }
.site-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; white-space: nowrap;
  color: var(--color-text); text-decoration: none; font-size: var(--text-small); font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: color var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard);
}
.site-nav a:hover { color: var(--brand-blue); }
.site-nav a[aria-current="true"] { color: var(--brand-blue); border-bottom-color: var(--brand-blue); }
.nav-cta-item { display: none; }
.nav-toggle {
  display: none; margin-left: auto; min-height: 44px; min-width: 44px; padding: 0 12px;
  background: var(--brand-white); border: 1px solid var(--color-border); border-radius: var(--radius-control);
  font-size: var(--text-small); font-weight: 600; cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  background: var(--brand-navy); color: var(--brand-white);
  min-height: calc(100svh - var(--header-h));
  display: flex; flex-direction: column;
}
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero-grid {
  position: relative; z-index: 1; width: 100%;
  flex: 1; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  align-items: center; padding-block: 72px 56px;
}
.hero-copy { max-width: 720px; }
.hero-copy h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.hero-copy h1 { margin-top: var(--space-6); color: var(--brand-white); }
.hero-copy .lead { margin-top: var(--space-6); color: var(--on-navy-muted); max-width: 52ch; }
.hero-copy .actions { margin-top: var(--space-8); }
.hero .line { display: block; overflow: hidden; }
.hero .line > span { display: block; will-change: transform; }
.js .hero-copy > * { opacity: 0; transition: opacity 600ms var(--ease-standard); }
.js .hero .line > span { transform: translateY(110%); transition: transform 900ms var(--ease-standard); }
.js.hero-ready .hero-copy > * { opacity: 1; }
.js.hero-ready .hero .line > span { transform: none; }

.hero-index {
  position: relative; z-index: 1; width: 100%;
  border-top: 1px solid var(--on-navy-line);
}
.hero-index ul {
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.hero-index a {
  display: flex; flex-direction: column; gap: 4px; min-height: 44px; padding: 20px 20px 22px 0;
  color: var(--brand-white); text-decoration: none; font-size: var(--text-small); font-weight: 500;
  border-right: 1px solid var(--on-navy-line); margin-right: 20px;
}
.hero-index li:last-child a { border-right: 0; margin-right: 0; }
.hero-index a span { color: var(--on-navy-muted); font-weight: 400; }
.hero-index a:hover { color: var(--brand-white); }
.hero-index a:hover span { color: var(--brand-white); }

/* ---------- Section umum ---------- */
.section { padding-block: 96px; }
.section-surface { background: var(--color-surface); }
.section-navy { background: var(--brand-navy); color: var(--brand-white); }
.section-navy h2, .section-navy h3 { color: var(--brand-white); }
.section-navy .muted { color: var(--on-navy-muted); }
.section-head { max-width: 720px; }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; align-items: start; }
.split-sticky > :first-child { position: sticky; top: calc(var(--header-h) + 24px); }

/* ---------- Overview ---------- */
.overview-copy p + p { margin-top: var(--space-4); }
.overview-figure { margin-top: var(--space-8); }
.overview-figure img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: var(--radius-card); background: var(--brand-navy); }
.overview .workflow { position: sticky; top: calc(var(--header-h) + 24px); }
.overview-figure figcaption { padding: 12px 0 0; font-size: var(--text-small); color: var(--color-muted); }

.workflow { border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--brand-white); }
.workflow-head {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; border-bottom: 1px solid var(--color-border);
}
.workflow-head p { font-weight: 600; font-size: var(--text-small); }
.segmented { display: inline-flex; border: 1px solid var(--color-input-border); border-radius: var(--radius-control); overflow: hidden; }
.segmented button {
  min-height: 40px; padding: 0 16px; border: 0; background: var(--brand-white); color: var(--color-text);
  font-size: var(--text-small); font-weight: 600; cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}
.segmented button + button { border-left: 1px solid var(--color-input-border); }
.segmented button:hover { background: var(--color-surface); }
.segmented button[aria-pressed="true"] { background: var(--brand-navy); color: var(--brand-white); }
.segmented button:focus-visible { outline-offset: -3px; }

.workflow-body { position: relative; padding: 24px; min-height: 380px; }
.workflow-lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.workflow-lines path { fill: none; stroke: var(--brand-blue); stroke-width: 1.5; }
.workflow-grid {
  position: relative; display: grid; gap: 16px 32px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-areas: "modules outputs";
}
.workflow-modules { grid-area: modules; display: grid; gap: 12px; align-content: start; }
.module {
  border: 1px solid var(--color-input-border); border-radius: var(--radius-control);
  padding: 12px 14px; background: var(--brand-white); font-size: var(--text-small); font-weight: 600; line-height: 1.35;
}
.module small { display: block; font-weight: 400; color: var(--color-muted); margin-top: 2px; }
.workflow-outputs { grid-area: outputs; display: grid; gap: 12px; align-content: start; }
.output {
  border: 1px solid var(--color-border); border-radius: var(--radius-control); background: var(--color-surface);
  padding: 12px 14px; font-size: var(--text-small); line-height: 1.4;
}
.pipeline { display: none; grid-area: outputs; gap: 0; align-content: start; }
.pipeline li {
  position: relative; padding: 12px 14px 12px 44px; border: 1px solid var(--brand-blue);
  background: var(--brand-white); font-size: var(--text-small); line-height: 1.4;
}
.pipeline li + li { border-top: 0; }
.pipeline li:first-child { border-radius: var(--radius-control) var(--radius-control) 0 0; }
.pipeline li:last-child { border-radius: 0 0 var(--radius-control) var(--radius-control); background: var(--brand-navy); color: var(--brand-white); border-color: var(--brand-navy); }
.pipeline strong { display: block; }
.pipeline i {
  position: absolute; left: 12px; top: 13px; width: 22px; height: 22px; border-radius: 50%;
  border: 1.5px solid currentColor; font: 600 12px/20px var(--font-sans); font-style: normal; text-align: center;
}
.workflow.is-integrated .workflow-outputs { display: none; }
.workflow.is-integrated .pipeline { display: grid; }
.workflow.is-integrated .workflow-modules { gap: 0; }
.workflow.is-integrated .module { border-radius: 0; }
.workflow.is-integrated .module + .module { border-top: 0; }
.workflow.is-integrated .module:first-child { border-radius: var(--radius-control) var(--radius-control) 0 0; }
.workflow.is-integrated .module:last-child { border-radius: 0 0 var(--radius-control) var(--radius-control); }
.workflow-note { padding: 16px 24px 20px; border-top: 1px solid var(--color-border); font-size: var(--text-small); color: var(--color-muted); }

/* ---------- Who we serve ---------- */
.audience { margin-top: var(--space-12); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
.audience li { border-top: 2px solid var(--brand-blue); padding-top: 20px; }
.audience h3 { font-size: 1.125rem; line-height: 1.3; }
.audience h3 span { display: block; font-size: var(--text-small); font-weight: 400; color: var(--color-muted); margin-top: 4px; letter-spacing: 0; }
.audience p { margin-top: var(--space-3); font-size: var(--text-small); color: var(--color-muted); }

/* ---------- Solutions ---------- */
.solutions-layout { margin-top: var(--space-12); display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; align-items: start; }
.solutions-visual { position: sticky; top: calc(var(--header-h) + 24px); }
.solutions-frame {
  position: relative; aspect-ratio: 4 / 5; border-radius: var(--radius-card); overflow: hidden; background: var(--brand-navy);
}
.solutions-frame img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0;
  transform: scale(1.04);
  transition: opacity 600ms var(--ease-standard), transform 900ms var(--ease-standard);
}
.solutions-frame img.is-active { opacity: 1; transform: none; }
.solutions-nav { margin-top: var(--space-4); display: grid; gap: 2px; }
.solutions-nav a {
  display: flex; align-items: center; gap: 12px; min-height: 40px; padding: 6px 0;
  color: var(--color-muted); text-decoration: none; font-size: var(--text-small); font-weight: 500;
  transition: color var(--duration-fast) var(--ease-standard);
}
.solutions-nav a::before {
  content: ""; width: 16px; height: 2px; background: var(--color-border);
  transition: background var(--duration-fast) var(--ease-standard), width 250ms var(--ease-standard);
}
.solutions-nav a:hover { color: var(--color-text); }
.solutions-nav a.is-active { color: var(--brand-blue); }
.solutions-nav a.is-active::before { background: var(--brand-blue); width: 32px; }

.solution { padding-block: 40px; border-top: 1px solid var(--color-border); scroll-margin-top: calc(var(--header-h) + 16px); }
.solution:last-child { border-bottom: 1px solid var(--color-border); }
.solution h3 { font-size: 1.75rem; }
.solution .alt { display: block; margin-top: 6px; color: var(--color-muted); font-size: var(--text-body); }
.solution > p { margin-top: var(--space-4); }
.solution-figure { display: none; margin-top: var(--space-6); border-radius: var(--radius-card); overflow: hidden; background: var(--brand-navy); }
.solution-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.features { margin-top: var(--space-6); display: grid; gap: 16px; }
.features > div { display: grid; grid-template-columns: 16px minmax(0, 1fr); column-gap: 12px; row-gap: 2px; align-items: start; }
.features > div::before { content: ""; grid-column: 1; grid-row: 1; width: 10px; height: 10px; margin-top: 7px; background: var(--brand-blue); clip-path: polygon(0 0, 100% 50%, 0 100%); }
.features dt { grid-column: 2; grid-row: 1; font-weight: 600; }
.features dd { grid-column: 2; grid-row: 2; color: var(--color-muted); font-size: var(--text-small); }

/* ---------- Platform ---------- */
.platform { overflow: hidden; }
.platform .section-head { padding-inline: 24px; max-width: calc(var(--content-max) + 48px); margin-inline: auto; width: 100%; }
.platform-stage { margin-top: var(--space-12); }
.platform-track { display: flex; gap: 32px; padding-inline: max(24px, calc((100vw - var(--content-max)) / 2)); width: max-content; }
.platform-panel { width: min(72vw, 900px, calc((100vh - 300px) * 16 / 9)); min-width: 520px; flex: 0 0 auto; }
.platform-panel figure { display: grid; gap: 20px; }
.platform-shot {
  border: 1px solid var(--on-navy-line); border-radius: var(--radius-card); overflow: hidden;
  background: #000a3a; aspect-ratio: 16 / 9;
}
.platform-shot img { width: 100%; height: 100%; object-fit: cover; }
.platform-panel h3 { font-size: 1.25rem; }
.platform-panel p { margin-top: 6px; color: var(--on-navy-muted); font-size: var(--text-small); max-width: 56ch; }
.platform-hint { margin-top: var(--space-6); padding-inline: 24px; max-width: calc(var(--content-max) + 48px); margin-inline: auto; font-size: var(--text-small); color: var(--on-navy-muted); }

/* ---------- Use cases ---------- */
.cases { display: grid; }
.case {
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px;
  padding: 28px 0; border-top: 1px solid var(--color-border);
}
.case:last-child { border-bottom: 1px solid var(--color-border); }
.case h3 { font-size: 1.25rem; }
.case p { color: var(--color-muted); font-size: var(--text-small); font-style: italic; }

/* ---------- Why us ---------- */
.pillars { margin-top: var(--space-12); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.pillar { padding: 24px; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--brand-white); }
.pillar h3 { font-size: 1.25rem; }
.pillar h3 span { display: block; margin-top: 4px; font-size: var(--text-small); font-weight: 400; color: var(--color-muted); letter-spacing: 0; }
.pillar p { margin-top: var(--space-4); color: var(--color-muted); font-size: var(--text-small); }

/* ---------- Contact ---------- */
.contact-info { margin-top: var(--space-8); display: grid; gap: 20px; }
.contact-info dt { font-weight: 600; font-size: var(--text-small); }
.contact-info dd { margin-top: 4px; color: var(--color-muted); }
.contact-info a { word-break: break-word; }

.form { border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 32px; background: var(--brand-white); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.field { display: grid; gap: 8px; }
.field.wide { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: var(--text-small); }
.field input, .field textarea {
  font: inherit; width: 100%; min-height: 44px; padding: 10px 12px;
  border: 1px solid var(--color-input-border); border-radius: var(--radius-control);
  background: var(--brand-white); color: var(--color-text);
}
.field textarea { min-height: 128px; resize: vertical; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--color-danger); }
.field .error { display: none; color: var(--color-danger); font-size: var(--text-small); }
.field.has-error .error { display: block; }
.form-actions { margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.form-status { min-height: 24px; font-size: var(--text-small); color: var(--color-success); }
.form-status.is-error { color: var(--color-danger); }
.form-note { margin-top: 12px; font-size: var(--text-caption); color: var(--color-muted); }

/* ---------- Footer ---------- */
.site-footer { background: var(--brand-navy); color: var(--brand-white); padding-block: 64px 40px; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 3fr) minmax(0, 3fr); gap: 48px; }
.footer-brand img { width: 176px; }
.footer-brand p { margin-top: 20px; color: var(--on-navy-muted); font-size: var(--text-small); max-width: 40ch; }
.site-footer h3 { font-size: var(--text-small); font-weight: 600; margin-bottom: 12px; }
.site-footer ul { display: grid; gap: 4px; }
.site-footer a { color: var(--brand-white); text-decoration: none; display: inline-flex; min-height: 36px; align-items: center; font-size: var(--text-small); }
.site-footer a:hover { text-decoration: underline; color: var(--brand-white); }
.site-footer address { font-style: normal; color: var(--on-navy-muted); font-size: var(--text-small); line-height: 1.6; }
.footer-bottom {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--on-navy-line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  font-size: var(--text-small); color: var(--on-navy-muted);
}

/* ---------- Responsif ---------- */
@media (max-width: 1023px) {
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--brand-white); border-bottom: 1px solid var(--color-border);
    padding: 8px 24px 20px;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { min-height: 48px; width: 100%; border-bottom: 0; border-left: 2px solid transparent; padding-left: 12px; }
  .site-nav a[aria-current="true"] { border-left-color: var(--brand-blue); }
  .nav-cta-item { display: block; margin-top: 8px; padding-top: 12px; border-top: 1px solid var(--color-border); }
  .site-nav .nav-cta-item a.button { color: var(--color-on-primary); border-left: 1px solid var(--color-primary); padding: 12px 20px; width: auto; }
  .site-nav .nav-cta-item a.button:hover { color: var(--color-on-primary); }
  .site-header .header-cta { margin-left: auto; }
  .nav-toggle { display: inline-flex; align-items: center; margin-left: 0; }
  .hero-grid { grid-template-columns: 1fr; padding-block: 56px 48px; }
  .hero-canvas { opacity: .55; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-brand { grid-column: 1 / -1; }
  .site-footer address a { word-break: break-all; }
  .split, .solutions-layout { grid-template-columns: 1fr; gap: 40px; }
  .split-sticky > :first-child, .overview .workflow { position: static; }
  .audience { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .solutions-visual { display: none; }
  .solution-figure { display: block; }
  .platform-track { width: auto; flex-direction: column; gap: 48px; padding-inline: 24px; max-width: calc(var(--content-max) + 48px); margin-inline: auto; }
  .platform-panel { width: auto; }
  .platform-hint { display: none; }
}
@media (max-width: 767px) {
  .wrap { padding-inline: 16px; }
  :root { --header-h: 64px; }
  .site-nav { padding: 8px 16px 16px; }
  .site-header .header-cta { display: none; }
  .nav-toggle { margin-left: auto; }
  .brand img { width: 128px; }
  .hero { min-height: auto; }
  .hero-grid { padding-block: 48px 40px; }
  .hero-index ul { grid-template-columns: 1fr 1fr; }
  .hero-index a { border-right: 0; margin-right: 0; padding: 14px 0; }
  .section { padding-block: 56px; }
  .workflow-grid { grid-template-columns: 1fr; grid-template-areas: "modules" "outputs"; }
  .workflow-body { min-height: 0; }
  .workflow-lines { display: none; }
  .audience { grid-template-columns: 1fr; gap: 24px; }
  .pillars { grid-template-columns: 1fr; }
  .form { padding: 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .platform .section-head, .platform-track { padding-inline: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  .js .hero-copy > * { opacity: 1; }
  .js .hero .line > span { transform: none; }
}