/* ===== Reset & dasar ===== */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--gray-50);
  color: var(--gray-900);
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;   /* fallback Safari < 16 */
  overflow-x: clip;
}
body.is-locked { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }

/* Target skip link — bisa menerima fokus tanpa cincin fokus permanen */
main:focus { outline: none; }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: 6px;
}
/* Di atas latar gelap/merah, cincin merah tidak terlihat — gunakan putih dengan halo gelap */
.hero :focus-visible,
.site-header:not(.is-solid):not(.is-menu-open) :focus-visible,
.ask-card :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--focus-ring-on-dark);
  box-shadow: 0 0 0 6px rgb(10 3 4 / 0.55);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px; left: 12px;
  z-index: 100;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-btn);
  background: var(--gray-900);
  color: var(--white);
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform var(--duration-fast) ease;
}
.skip-link:focus { transform: none; }

.icon { width: 1.25em; height: 1.25em; flex: none; }
.icon-stroke {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { position: relative; padding-block: var(--space-section); }
.section--rule { border-top: 1px solid var(--gray-200); }

/* ===== Tipografi sistem ===== */
.eyebrow {
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--action);
}

/* Judul dua warna: kalimat utama gelap, lanjutan abu-abu */
.title-split {
  max-width: 24ch;
  font-size: var(--text-2xl);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.03em;
}
.title-split .muted { color: var(--gray-450); }

.title-lg {
  font-size: var(--text-3xl);
  line-height: 1.06;
}

.subtitle {
  max-width: 54ch;
  margin-top: 1rem;
  font-size: var(--text-md);
  line-height: 1.55;
  color: var(--gray-500);
}

/* ===== Tombol ===== */
.btn {
  --btn-bg: var(--action);
  --btn-fg: var(--white);
  --btn-border: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.6rem 1.4rem;
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-btn);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    box-shadow var(--duration-normal) var(--ease-out-expo),
    transform var(--duration-fast) var(--ease-out-expo);
}
.btn .icon { width: 1.1em; height: 1.1em; transition: transform var(--duration-normal) var(--ease-out-expo); }
.btn:hover { --btn-bg: var(--action-hover); box-shadow: 0 10px 24px -12px rgb(217 30 38 / 0.7); }
.btn:hover .icon { transform: translateX(3px); }
.btn:active { transform: scale(0.98); }

.btn--lg { min-height: 56px; padding-inline: 1.75rem; font-size: 1.0625rem; }
.btn--sm { min-height: 40px; padding: 0 1.1rem; font-size: var(--text-sm); white-space: nowrap; }

.btn--white {
  --btn-bg: var(--white);
  --btn-fg: var(--gray-900);
  --btn-border: var(--gray-200);
  box-shadow: var(--shadow-xs);
}
.btn--white:hover { --btn-bg: var(--gray-50); --btn-border: var(--gray-300); box-shadow: var(--shadow-chip); }

/* Putih dengan teks merah — CTA utama di atas latar gelap/gradien */
.btn--white-accent {
  --btn-bg: var(--white);
  --btn-fg: var(--action);
  box-shadow: 0 10px 30px -12px rgb(138 23 26 / 0.45);
}
.btn--white-accent:hover { --btn-bg: var(--tint-50); box-shadow: 0 14px 34px -12px rgb(138 23 26 / 0.55); }

/* Kaca — tombol sekunder di atas latar gelap */
.btn--glass {
  --btn-bg: rgb(255 255 255 / 0.08);
  --btn-fg: var(--white);
  --btn-border: rgb(255 255 255 / 0.3);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.btn--glass:hover { --btn-bg: rgb(255 255 255 / 0.16); --btn-border: rgb(255 255 255 / 0.5); box-shadow: none; }

@media (pointer: coarse) {
  .btn--sm { min-height: var(--tap-min); }
}

/* ===== Daftar centang ===== */
.check-list { display: grid; gap: 0.6rem; margin-top: 1.5rem; }
.check-list li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.9375rem;
  color: var(--gray-600);
}
.check-list .icon { width: 18px; height: 18px; margin-top: 2px; color: var(--action); }

/* ===== Header ===== */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding-top: 12px;
}

/*
 * Bar header. Latar "kaca" ditaruh di ::before, BUKAN di elemen ini:
 * backdrop-filter pada leluhur membuat .site-nav (position: fixed) ikut terkurung
 * di dalam bar setinggi 72px sehingga menu mobile terpotong.
 */
.header-inner {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: center;
  gap: 2rem;
  min-height: var(--header-h);
  margin-inline: calc(var(--bar-pad) * -1);   /* logo sejajar tepi konten */
  padding-inline: var(--bar-pad);
  border-radius: 18px;
}
.header-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border: 1px solid transparent;
  border-radius: inherit;
  pointer-events: none;
  transition:
    background-color var(--duration-normal) ease,
    border-color var(--duration-normal) ease,
    box-shadow var(--duration-normal) ease;
}
.site-header.is-solid .header-inner::before {
  background: rgb(255 255 255 / 0.92);
  border-color: var(--gray-200);
  box-shadow: var(--shadow-chip);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  backdrop-filter: saturate(1.6) blur(14px);
}
.site-header.is-menu-open .header-inner::before {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.brand {
  position: relative;
  z-index: 2;              /* tetap terlihat di atas overlay menu mobile */
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}
.brand img { width: 62px; height: auto; border-radius: 5px; }
.brand-text {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand-text span { display: block; font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-500); }

/* Di atas hero gelap (sebelum header menjadi solid): teks terang */
.site-header:not(.is-solid):not(.is-menu-open) .brand-text { color: var(--white); }
.site-header:not(.is-solid):not(.is-menu-open) .brand-text span { color: rgb(255 255 255 / 0.85); }

.site-nav { display: flex; align-items: center; flex: 1; gap: 2rem; }
.nav-list { display: flex; align-items: center; gap: 1.75rem; }
.nav-link {
  display: block;
  padding-block: 0.4rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-600);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--duration-fast) ease;
}
.nav-link:hover,
.nav-link[aria-current] { color: var(--gray-900); }
.nav-actions { display: flex; flex: none; gap: 0.75rem; margin-left: auto; }

.nav-toggle {
  display: none;
  flex: none;
  align-items: center;
  justify-content: center;
  width: var(--tap-min); height: var(--tap-min);
  margin-left: auto;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-btn);
  background: var(--white);
  color: var(--gray-900);
  box-shadow: var(--shadow-xs);
  cursor: pointer;
}
.nav-toggle .icon { width: 20px; height: 20px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* Desktop: tautan terang saat header transparan di atas hero */
@media (min-width: 60.0625em) {
  .site-header:not(.is-solid) .nav-link {
    color: rgb(255 255 255 / 0.92);
    text-shadow: 0 1px 10px rgb(10 3 4 / 0.7);
  }
  .site-header:not(.is-solid) .nav-link:hover,
  .site-header:not(.is-solid) .nav-link[aria-current] { color: var(--white); }
}

@media (min-width: 60.0625em) and (pointer: coarse) {
  .nav-link { padding-block: 0.7rem; }
}

/* Mobile & tablet: menu layar penuh. Breakpoint dalam em agar ikut membesar bila font browser diperbesar. */
@media (max-width: 60em) {
  .header-inner { gap: 1rem; }
  .nav-toggle { display: inline-flex; position: relative; z-index: 2; }

  .site-nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 2.5rem;
    padding: calc(var(--header-h) + 2rem) var(--gutter) 2rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--white);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      opacity var(--duration-normal) ease,
      transform var(--duration-normal) var(--ease-out-expo),
      visibility 0s linear var(--duration-normal);
  }
  .site-nav.is-open { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }

  /* Margin auto memusatkan isi secara vertikal, tetapi aman (tidak terpotong) saat konten lebih tinggi dari layar */
  .nav-list { flex-direction: column; align-items: flex-start; gap: 0.25rem; margin-top: auto; }
  .nav-link {
    display: flex;
    align-items: center;
    min-height: var(--tap-min);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--gray-900);
    white-space: normal;
  }
  .nav-actions { flex-wrap: wrap; margin: 0 0 auto; }
  .nav-actions .btn { flex: 1 1 10rem; min-height: 52px; font-size: var(--text-base); }
}

/* Ponsel landscape: menu ringkas agar tombol aksi tetap terjangkau */
@media (max-width: 60em) and (max-height: 500px) {
  .site-nav { gap: 1.25rem; padding-top: calc(var(--header-h) + 1.25rem); }
  .nav-list { flex-direction: row; flex-wrap: wrap; column-gap: 1.75rem; }
  .nav-link { font-size: 1.375rem; }
  .nav-actions .btn { min-height: var(--tap-min); }
}

/* ===== Footer ===== */
.site-footer {
  position: relative;
  isolation: isolate;
  padding-top: clamp(3.5rem, 2rem + 4vw, 5.5rem);
  background: var(--gray-950);
  color: var(--gray-400);
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: -30% 10% auto;
  z-index: -1;
  height: 70%;
  background: radial-gradient(50% 50% at 50% 50%, rgb(174 31 38 / 0.35), transparent 70%);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 2.5rem;
  padding-bottom: 3rem;
}
.footer-brand img { width: 150px; margin-bottom: 1.25rem; }
.footer-brand p { max-width: 34ch; font-size: 0.9375rem; line-height: 1.6; }
.footer-title {
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
}
.footer-links { display: grid; justify-items: start; font-size: 0.9375rem; }
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap-min);   /* target sentuh 44px, ritme visual tetap rapat */
  text-decoration: none;
  transition: color var(--duration-fast) ease;
}
.footer-links a:hover { color: var(--white); }
.footer-note { max-width: 34ch; font-size: 0.9375rem; line-height: 1.6; }
.footer-note a { color: var(--white); }
.footer-bottom {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-block: 1.75rem;
  font-size: var(--text-sm);
  color: var(--gray-400);
}
.footer-bottom p { text-wrap: balance; }
.footer-bottom::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  right: var(--gutter);
  height: 1px;
  background: rgb(255 255 255 / 0.08);
}
.footer-bottom .heart { color: var(--brand-red); }

/* Tablet: merek satu baris penuh, tiga kolom di bawahnya */
@media (max-width: 60em) {
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem 1.5rem; }
  .footer-brand { grid-column: 1 / -1; }
}
/* Ponsel: dua kolom tautan berdampingan, kontak selebar penuh */
@media (max-width: 32.5em) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}

/* ===== Reveal ===== */
.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0ms);
}
.js .reveal.is-visible { opacity: 1; transform: none; }
.delay-1 { --reveal-delay: 80ms; }

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