/* PT Alpha Konstruksi Nusantara — site styles (di atas theme.css) */

/* Brand: aksen bronze menimpa steel-blue tema */
:root {
  --color-accent: #b08b56;
  --color-accent-100: oklch(0.95 0.025 80);
  --color-accent-200: oklch(0.90 0.04 80);
  --color-accent-300: oklch(0.82 0.06 80);
  --color-accent-400: oklch(0.73 0.075 79);
  --color-accent-500: #b08b56;
  --color-accent-600: oklch(0.57 0.08 76);
  --color-accent-700: oklch(0.48 0.07 74);
  --color-accent-800: oklch(0.37 0.055 72);
  --color-accent-900: oklch(0.27 0.04 70);
  --color-accent-2: var(--color-accent);
  --color-accent-2-100: var(--color-accent-100);
  --color-accent-2-300: var(--color-accent-300);
  --color-accent-2-500: var(--color-accent-500);
  --color-accent-2-700: var(--color-accent-700);
  --color-accent-2-900: var(--color-accent-900);
}

html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 72px; }
body {
  margin: 0;
  background-color: var(--color-bg);
  /* ornamen titik; ganti ke .bg-grid / hapus sesuai selera */
  background-image: radial-gradient(color-mix(in oklch, var(--color-neutral-400) 70%, transparent) 1.2px, transparent 1.2px);
  background-size: 30px 30px;
  font-family: var(--font-body);
  color: var(--color-text);
}
a { color: var(--color-accent-700); text-decoration: none; }
a:hover { color: var(--color-accent-600); }

.container { max-width: 1680px; margin: 0 auto; padding-inline: clamp(20px, 4vw, 64px); }
.section { padding-block: calc(var(--space-8) * 2); }

/* Nav */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-neutral-300);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); padding: var(--space-3) clamp(20px, 4vw, 64px); flex-wrap: wrap;
  transition: transform 0.3s ease;
}
.site-nav.nav-hidden { transform: translateY(-105%); }
.nav-brand-row { display: flex; align-items: center; gap: var(--space-3); }
.nav-brand-row img { height: 34px; width: auto; display: block; }
.brand-name { font-family: var(--font-heading); font-weight: 700; font-size: 22px; letter-spacing: 0.04em; text-transform: uppercase; }
.brand-sub { font-family: var(--font-heading); font-size: 16px; color: var(--color-accent-700); letter-spacing: 0.08em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: var(--space-4); flex-wrap: wrap; }
.nav-links > a { font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase; }
.lang-switch { display: inline-flex; gap: var(--space-2); font-size: 13px; letter-spacing: 0.08em; border-left: 1px solid var(--color-neutral-400); padding-left: var(--space-3); }
.lang-switch .active { color: var(--color-text); font-weight: 600; }
.lang-switch .soon { color: var(--color-neutral-600); }
/* target sentuh minimum 24x24 (WCAG 2.5.8) — teks "ID/EN/ZH" 13px terlalu kecil sendirian */
.lang-switch a { display: inline-flex; align-items: center; justify-content: center; min-width: 24px; min-height: 24px; }
.burger { display: none; background: none; border: 1px solid var(--color-neutral-400); padding: 8px 10px; cursor: pointer; color: var(--color-text); }
@media (max-width: 900px) {
  .burger { display: inline-flex; }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; align-items: flex-start; width: 100%; padding-top: 10px; }
}

/* Tombol besar + teks putih di primary */
.btn-lg { font-size: 17px; padding: 14px 28px; }
.btn-primary { color: #fff !important; }
.btn-wa { display: inline-flex; align-items: center; gap: 8px; }

/* Ornamen crosshair */
.mark { position: absolute; font-family: var(--font-heading); color: var(--color-accent-400); font-size: 22px; line-height: 1; user-select: none; pointer-events: none; }

/* Hero */
.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(480px, 100%), 1fr)); gap: clamp(20px, 3vw, 56px); align-items: end; }
.kicker { font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-accent-700); }
.hero-title { font-family: var(--font-heading); font-weight: 700; font-size: clamp(48px, 6.5vw, 110px); line-height: 0.95; margin: 0; text-transform: uppercase; text-wrap: pretty; }
.hero-lede { font-size: clamp(17px, 1.1vw, 20px); line-height: 1.6; max-width: 62ch; margin: 0; color: var(--color-neutral-800); }
.hero-col { display: flex; flex-direction: column; gap: var(--space-4); }
.btn-row { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* Figure blueprint */
.figure { margin: 0; padding: var(--space-2); position: relative; }
.figure figcaption { display: flex; justify-content: space-between; gap: var(--space-3); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-neutral-700); padding-top: var(--space-2); }

/* Slideshow hero */
.slides { display: block; position: relative; height: clamp(380px, 34vw, 560px); overflow: hidden; }
.slides img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1.2s ease; }
.slides img.on { opacity: 1; }

/* Spec plate */
.spec-plate { position: relative; margin-top: calc(var(--space-8) * 2); border: 1px solid var(--color-neutral-400); display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.spec-cell { padding: var(--space-4) clamp(20px, 4vw, 64px) var(--space-4) var(--space-6); border-right: 1px solid var(--color-neutral-300); padding: var(--space-4) var(--space-6); }
.spec-cell:last-child { border-right: 0; }
.spec-label { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-neutral-700); }
.spec-value { font-family: var(--font-heading); font-weight: 700; font-size: 44px; line-height: 1.1; }
.spec-value small { font-size: 20px; color: var(--color-accent-700); font-weight: 700; }

/* Section header */
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-6); }
.sec-head h2 { font-family: var(--font-heading); font-weight: 700; font-size: clamp(32px, 4vw, 48px); margin: 0; text-transform: uppercase; }
.sec-head span { font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-neutral-700); }

/* Grid kartu */
.grid-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: clamp(14px, 1.6vw, 28px); }
.svc-card { position: relative; display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-4); }
.svc-no { font-family: var(--font-heading); font-size: 15px; color: var(--color-accent-700); letter-spacing: 0.1em; }
.svc-name { font-family: var(--font-heading); font-weight: 600; font-size: 26px; text-transform: uppercase; line-height: 1.05; }
.svc-card p { margin: 0; font-size: 14.5px; line-height: 1.55; color: var(--color-neutral-800); text-wrap: pretty; }
.svc-spec { margin-top: auto; padding-top: var(--space-2); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-neutral-700); }

/* Metode band */
.band-dark { background: var(--color-accent-900); color: #fff; }
.band-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(420px, 100%), 1fr)); gap: clamp(20px, 3vw, 56px); align-items: center; }
.band-dark h2 { font-family: var(--font-heading); font-weight: 700; font-size: clamp(32px, 3.5vw, 56px); margin: 0; text-transform: uppercase; color: #fff; line-height: 1; }
.step { display: flex; gap: var(--space-4); align-items: baseline; border-top: 1px solid var(--color-accent-700); padding: var(--space-3) 0; }
.step:last-child { border-bottom: 1px solid var(--color-accent-700); }
.step-no { font-family: var(--font-heading); font-size: 26px; color: var(--color-accent-300); min-width: 44px; }
.step-title { font-family: var(--font-heading); font-size: 22px; text-transform: uppercase; }
.step p { margin: 0; font-size: 14.5px; color: var(--color-accent-200); line-height: 1.55; }
.band-dark .figure { border-color: var(--color-accent-700); }
.band-dark .figure figcaption { color: var(--color-accent-300); }

/* Selingan / CTA */
.center-sec { text-align: center; position: relative; padding-block: calc(var(--space-8) * 2.5); }
.center-sec .statement { font-family: var(--font-heading); font-weight: 600; font-size: clamp(30px, 3.6vw, 54px); line-height: 1.12; text-transform: uppercase; margin: 0 auto; text-wrap: pretty; max-width: 32ch; }
.center-sec .cta-title { font-family: var(--font-heading); font-weight: 700; font-size: clamp(34px, 4.5vw, 68px); line-height: 1.02; text-transform: uppercase; margin: 0 auto; max-width: 24ch; text-wrap: pretty; }
.center-sec .sub { margin: var(--space-4) auto 0; max-width: 52ch; font-size: clamp(16px, 1.1vw, 19px); line-height: 1.6; color: var(--color-neutral-800); }
.center-sec .attr { margin-top: var(--space-4); font-size: 15px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-neutral-700); }
.tag-row { display: flex; justify-content: center; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-6); }
.tag-row .tag { font-size: 15px; padding: var(--space-2) var(--space-4); }
.figure-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); gap: clamp(14px, 1.6vw, 28px); margin-top: calc(var(--space-8) * 1.5); text-align: left; }
.figure-strip img { display: block; width: 100%; height: clamp(220px, 18vw, 320px); object-fit: cover; }

/* Klien */
.clients { border-top: 1px solid var(--color-neutral-300); border-bottom: 1px solid var(--color-neutral-300); }
.clients-row { display: flex; align-items: center; gap: clamp(20px, 3vw, 56px); flex-wrap: wrap; padding-block: var(--space-6); }
.clients-row .label { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-neutral-700); flex-shrink: 0; }
.logo-row { display: flex; align-items: center; gap: clamp(24px, 3vw, 56px); flex-wrap: wrap; }
.logo-row img { width: auto; filter: grayscale(1) opacity(0.65); transition: filter 0.2s; }
.logo-row img:hover { filter: grayscale(0) opacity(1); }
.logo-row .more { color: var(--color-neutral-600); font-size: 14px; letter-spacing: 0.06em; }

/* Kontak */
.contact { background: var(--color-neutral-900); color: var(--color-neutral-100); }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: clamp(20px, 3vw, 56px); align-items: start; padding-block: calc(var(--space-8) * 2); }
.contact h2 { font-family: var(--font-heading); font-weight: 700; font-size: clamp(32px, 4vw, 48px); margin: 0; text-transform: uppercase; color: #fff; }
.contact .lede { margin: 0; font-size: 16px; line-height: 1.6; max-width: 48ch; color: var(--color-accent-200); }
.contact-col { display: flex; flex-direction: column; gap: var(--space-3); }
.info-list { display: grid; gap: var(--space-3); font-size: 15px; line-height: 1.6; }
.info-item { border-top: 1px solid var(--color-accent-700); padding-top: var(--space-2); }
.info-item .label { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent-300); }
.info-item div:not(.label), .info-item a { color: #fff; }
.footer-bar { border-top: 1px solid var(--color-accent-700); }
.footer-bar .inner { display: flex; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; padding-block: var(--space-3); font-size: 12.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-accent-300); }
.footer-bar .brand { display: inline-flex; align-items: center; gap: var(--space-2); }
.footer-bar img { height: 18px; width: auto; display: block; }