/* Daeng Sirua Precast Beton — black & gold, terinspirasi tema TheLuxury */
:root {
  --black: #0a0a0a;
  --dark: #111111;
  --dark-2: #181818;
  --line: rgba(255, 255, 255, .09);
  --cream: #f6f2ea;
  --gold: #c9a24a;
  --gold-light: #e6c877;
  --gold-dark: #9a7424;
  --gold-grad: linear-gradient(120deg, #9a7424 0%, #e6c877 45%, #c9a24a 70%, #8a6620 100%);
  --text: #b9b4aa;
  --text-dark: #4a463f;
  --white: #ffffff;
  --serif: "Merriweather", Georgia, serif;
  --sans: "Open Sans", Arial, sans-serif;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --wrap: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--black);
  color: var(--text);
  font: 400 15px/1.85 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s; }
h1, h2, h3, h4 { font-family: var(--serif); color: var(--white); font-weight: 400; line-height: 1.35; margin: 0 0 .6em; }
p { margin: 0 0 1.2em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.wrap { width: min(var(--wrap), 100% - 40px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- Typo helpers ---------- */
.eyebrow {
  display: inline-block;
  font: 600 12px/1 var(--sans);
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}
.title { font-size: clamp(26px, 3.2vw, 38px); }
.title em { font-style: italic; color: var(--gold-light); }
.divider { width: 60px; height: 2px; background: var(--gold-grad); margin: 22px 0 28px; border: 0; }
.center { text-align: center; }
.center .divider { margin-inline: auto; }
.lead { font-size: 16px; max-width: 680px; }
.center .lead { margin-inline: auto; }
.gold { color: var(--gold); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 30px;
  font: 600 12px/1 var(--sans);
  letter-spacing: .22em; text-transform: uppercase;
  border: 1px solid var(--gold);
  color: var(--gold);
  background: transparent;
  cursor: pointer;
  transition: background .35s var(--ease), color .35s var(--ease), border-color .35s;
}
.btn:hover { background: var(--gold); color: var(--black); }
.btn--solid { background: var(--gold-grad); background-size: 200% 100%; color: var(--black); border-color: transparent; }
.btn--solid:hover { background-position: 100% 0; color: var(--black); }
.btn--light { border-color: rgba(255, 255, 255, .6); color: var(--white); }
.btn--light:hover { background: var(--white); border-color: var(--white); color: var(--black); }
.btn svg { width: 16px; height: 16px; }
.link-more {
  font: 600 12px/1 var(--sans); letter-spacing: .22em; text-transform: uppercase; color: var(--gold);
  display: inline-flex; align-items: center; gap: 10px;
}
.link-more::after { content: ""; width: 28px; height: 1px; background: currentColor; transition: width .3s var(--ease); }
.link-more:hover::after { width: 46px; }

/* ---------- Top bar ---------- */
.topbar { background: #050505; border-bottom: 1px solid var(--line); font-size: 12.5px; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; min-height: 42px; gap: 20px; }
.topbar__info { display: flex; gap: 26px; flex-wrap: wrap; }
.topbar__info span, .topbar__info a { display: inline-flex; align-items: center; gap: 8px; }
.topbar svg { width: 14px; height: 14px; fill: var(--gold); }
.social { display: flex; gap: 14px; }
.social a { display: grid; place-items: center; width: 28px; height: 28px; }
.social a:hover svg { fill: var(--gold-light); }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 10, 10, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 84px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { width: 50px; height: 50px; object-fit: cover; }
.brand__name { font-family: var(--serif); color: var(--white); font-size: 17px; line-height: 1.2; letter-spacing: .04em; }
.brand__name small { display: block; font: 600 10px/1.6 var(--sans); letter-spacing: .3em; text-transform: uppercase; color: var(--gold); }
.nav ul { display: flex; gap: 34px; }
.nav a {
  position: relative;
  font: 600 12px/1 var(--sans); letter-spacing: .2em; text-transform: uppercase; color: #d9d4ca;
  padding: 10px 0;
}
.nav a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: var(--gold); transition: width .35s var(--ease); }
.nav a:hover, .nav a.active { color: var(--gold); }
.nav a:hover::after, .nav a.active::after { width: 100%; }
.header__cta { padding: 12px 20px; }
.burger { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; padding: 10px; }
.burger span { display: block; height: 1px; background: var(--white); margin: 6px 0; transition: transform .3s, opacity .3s; }
.nav-open .burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .burger span:nth-child(2) { opacity: 0; }
.nav-open .burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero slider ---------- */
.hero { position: relative; height: calc(100vh - 126px); min-height: 560px; max-height: 860px; overflow: hidden; background: #000; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity 1.2s ease, visibility 1.2s; }
.slide.is-active { opacity: 1; visibility: visible; }
.slide__bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.08); transition: transform 7s linear; }
.slide.is-active .slide__bg { transform: scale(1); }
.slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.85) 0%, rgba(0,0,0,.55) 50%, rgba(0,0,0,.2) 100%); }
.slide__content { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: center; max-width: 640px; }
.slide__content > * { opacity: 0; transform: translateY(30px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.slide.is-active .slide__content > * { opacity: 1; transform: none; }
.slide.is-active .slide__content > :nth-child(2) { transition-delay: .2s; }
.slide.is-active .slide__content > :nth-child(3) { transition-delay: .4s; }
.slide.is-active .slide__content > :nth-child(4) { transition-delay: .6s; }
.slide h1, .slide h2 { font-size: clamp(32px, 5vw, 60px); line-height: 1.15; margin-bottom: 22px; }
.slide p { font-size: 16px; color: #ddd7cb; max-width: 520px; margin-bottom: 34px; }
.slide__btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__nav { position: absolute; z-index: 5; bottom: 40px; left: 0; right: 0; }
.hero__nav .wrap { display: flex; align-items: center; gap: 18px; }
.hero__dots { display: flex; gap: 10px; }
.hero__dots button { width: 34px; height: 2px; border: 0; padding: 0; background: rgba(255, 255, 255, .3); cursor: pointer; transition: background .3s, width .3s; }
.hero__dots button.is-active { background: var(--gold); width: 54px; }
.hero__count { font: 400 13px var(--serif); color: var(--white); letter-spacing: .1em; }
.hero__count b { color: var(--gold); font-weight: 400; }
.hero__arrows { margin-left: auto; display: flex; gap: 8px; }
.hero__arrows button { width: 46px; height: 46px; border: 1px solid rgba(255, 255, 255, .3); background: transparent; color: var(--white); cursor: pointer; display: grid; place-items: center; transition: border-color .3s, color .3s; }
.hero__arrows button:hover { border-color: var(--gold); color: var(--gold); }
.hero__arrows svg { width: 18px; height: 18px; }

/* ---------- Sections ---------- */
.section { padding: 110px 0; position: relative; }
.section--dark { background: var(--dark); }
.section--darker { background: var(--black); }
.section--light { background: var(--cream); color: var(--text-dark); }
.section--light h2, .section--light h3, .section--light h4 { color: #141414; }
.section--light .eyebrow { color: var(--gold-dark); }
.section-head { margin-bottom: 60px; }
.section-head--split { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; flex-wrap: wrap; }
.section-head--split .divider { margin-bottom: 0; }

/* ---------- Service columns (3 kolom ala TheLuxury) ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 60px; align-items: center; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.card-service { text-align: center; }
.card-service__img { display: block; position: relative; overflow: hidden; aspect-ratio: 4 / 3; margin-bottom: 30px; }
.card-service__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); filter: grayscale(25%); }
.card-service:hover .card-service__img img { transform: scale(1.07); filter: none; }
.card-service__img::after { content: ""; position: absolute; inset: 14px; border: 1px solid rgba(230, 200, 119, .55); opacity: 0; transition: opacity .5s, inset .5s var(--ease); }
.card-service:hover .card-service__img::after { opacity: 1; inset: 20px; }
.card-service__num { font: italic 400 15px var(--serif); color: var(--gold); display: block; margin-bottom: 8px; }
.card-service h3 { font-size: 20px; }
.card-service p { font-size: 14.5px; }

/* ---------- Feature banner ---------- */
.feature {
  position: relative; padding: 150px 0; background-size: cover; background-position: center; background-attachment: fixed;
}
.feature::before { content: ""; position: absolute; inset: 0; background: rgba(0, 0, 0, .72); }
.feature .wrap { position: relative; }
.feature__box { max-width: 640px; }
.feature__box--center { margin-inline: auto; text-align: center; }
.feature__box--center .divider { margin-inline: auto; }
.feature h2 { font-size: clamp(28px, 4vw, 46px); }
.feature p { color: #ddd7cb; font-size: 16px; margin-bottom: 36px; }

/* ---------- Portfolio grid ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 6px 28px; justify-content: center; margin-bottom: 50px; }
.filters button {
  background: none; border: 0; padding: 6px 0; cursor: pointer;
  font: 600 12px/1 var(--sans); letter-spacing: .2em; text-transform: uppercase; color: #8f8a80;
  border-bottom: 1px solid transparent; transition: color .3s, border-color .3s;
}
.filters button:hover, .filters button.is-active { color: var(--gold); border-color: var(--gold); }
.pf-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.pf-item { margin: 0; position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: #000; cursor: zoom-in; }
.pf-item.is-hidden { display: none; }
.pf-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease), opacity .5s; }
.pf-item__cap {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; padding: 28px;
  background: linear-gradient(0deg, rgba(0,0,0,.88) 0%, rgba(0,0,0,0) 65%);
  opacity: 0; transition: opacity .5s;
}
.pf-item__cap h3 { font-size: 18px; margin: 0 0 4px; transform: translateY(14px); transition: transform .5s var(--ease); }
.pf-item__cap span { font-size: 11.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); transform: translateY(14px); transition: transform .5s var(--ease) .05s; }
.pf-item:hover img { transform: scale(1.08); opacity: .8; }
.pf-item:hover .pf-item__cap, .pf-item:focus-visible .pf-item__cap { opacity: 1; }
.pf-item:hover .pf-item__cap h3, .pf-item:hover .pf-item__cap span { transform: none; }

/* ---------- About teaser ---------- */
.about-media { position: relative; isolation: isolate; } /* bingkai ::before tetap terlihat setelah transform reveal dilepas */
.about-media img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.about-media::before { content: ""; position: absolute; top: -24px; left: -24px; width: 60%; height: 60%; border: 1px solid var(--gold); z-index: -1; }
.about-badge {
  position: absolute; right: -24px; bottom: 40px; background: var(--black); padding: 28px 30px; max-width: 250px;
  border-left: 3px solid var(--gold);
}
.about-badge strong { display: block; font: italic 400 19px/1.4 var(--serif); color: var(--gold-light); margin-bottom: 6px; }
.about-badge span { font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: #9d978c; }
.section--light .about-badge { background: #141414; }
.checklist li { position: relative; padding-left: 30px; margin-bottom: 12px; }
.checklist li::before { content: ""; position: absolute; left: 0; top: 10px; width: 14px; height: 7px; border-left: 2px solid var(--gold); border-bottom: 2px solid var(--gold); transform: rotate(-45deg); }
.signature { display: flex; align-items: center; gap: 18px; margin-top: 30px; }
.signature strong { display: block; font: italic 400 20px var(--serif); color: var(--white); }
.section--light .signature strong { color: #141414; }
.signature span { font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--gold); }

/* ---------- Counters ---------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats .grid-4 { gap: 0; }
.stat { text-align: center; padding: 50px 20px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font: 400 clamp(36px, 4vw, 50px)/1 var(--serif); color: var(--gold); margin-bottom: 12px; }
.stat span { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: #d0cabe; }

/* ---------- Video ---------- */
.video-wrap { position: relative; max-width: 980px; margin: 0 auto; border: 1px solid rgba(201, 162, 74, .35); padding: 12px; background: #000; }
.video-frame { width: 100%; aspect-ratio: 16 / 9; background: #000; }
.video-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
.video-play {
  position: absolute; inset: 12px; display: grid; place-items: center; border: 0; cursor: pointer;
  background: rgba(0, 0, 0, .45) center / cover no-repeat;
}
.video-play__btn { width: 92px; height: 92px; border-radius: 50%; border: 1px solid var(--gold); display: grid; place-items: center; transition: transform .4s var(--ease), background .4s; }
.video-play__btn::after { content: ""; position: absolute; width: 92px; height: 92px; border-radius: 50%; border: 1px solid var(--gold); animation: pulse 2.2s infinite; }
.video-play:hover .video-play__btn { transform: scale(1.08); background: rgba(201, 162, 74, .2); }
.video-play svg { width: 28px; height: 28px; fill: var(--gold); margin-left: 5px; }
.video-play.is-hidden { display: none; }
@keyframes pulse { from { transform: scale(1); opacity: .8; } to { transform: scale(1.6); opacity: 0; } }

/* ---------- Icon boxes ---------- */
.icon-box { padding: 44px 36px; border: 1px solid var(--line); background: var(--dark-2); transition: border-color .4s, transform .4s var(--ease); height: 100%; }
.icon-box:hover { border-color: rgba(201, 162, 74, .55); transform: translateY(-6px); }
.icon-box__icon { width: 58px; height: 58px; display: grid; place-items: center; border: 1px solid var(--gold); margin-bottom: 26px; transform: rotate(45deg); }
.icon-box__icon svg { width: 24px; height: 24px; stroke: var(--gold); fill: none; stroke-width: 1.5; transform: rotate(-45deg); }
.icon-box h3 { font-size: 19px; }
.icon-box p { font-size: 14.5px; margin: 0; }
.section--light .icon-box { background: #fff; border-color: #e6dfd2; }
.section--light .icon-box p { color: var(--text-dark); }

/* ---------- Mitra ---------- */
.partners { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.partner {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 6px;
  min-height: 130px; padding: 20px 14px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  transition: background .4s;
}
.partner strong { font: 400 15px/1.4 var(--serif); color: #e7e2d8; transition: color .3s; }
.partner span { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: #7f7a71; }
.partner:hover { background: rgba(201, 162, 74, .06); }
.partner:hover strong { color: var(--gold-light); }

/* ---------- Project list ---------- */
.project-list { columns: 2; column-gap: 50px; }
.project-list li { break-inside: avoid; display: flex; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.project-list li b { font: italic 400 13px var(--serif); color: var(--gold); min-width: 26px; padding-top: 2px; }

/* ---------- Steps ---------- */
.steps { counter-reset: step; }
.step { position: relative; padding-top: 30px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: block; font: italic 400 46px/1 var(--serif); color: transparent; -webkit-text-stroke: 1px var(--gold); margin-bottom: 18px;
}
.step h3 { font-size: 18px; }
.step p { font-size: 14.5px; }

/* ---------- Product ---------- */
.product { display: grid; grid-template-columns: 1.05fr 1fr; gap: 70px; align-items: center; }
.product + .product { margin-top: 110px; }
.product--rev .product__media { order: 2; }
.product__media { position: relative; }
.product__media img { width: 100%; }
.product__tag { position: absolute; top: 20px; left: 20px; background: var(--gold-grad); color: var(--black); font: 700 11px/1 var(--sans); letter-spacing: .2em; text-transform: uppercase; padding: 10px 14px; }
.product h2 { font-size: clamp(26px, 3vw, 36px); }
.product .btn { margin-top: 10px; }
.spec { margin: 26px 0 30px; border-top: 1px solid var(--line); }
.spec li { display: flex; justify-content: space-between; gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.spec li span:last-child { color: var(--white); text-align: right; }

/* ---------- Posters ---------- */
.poster { border: 1px solid rgba(201, 162, 74, .3); padding: 10px; background: #000; }
.poster img { width: 100%; }

/* ---------- Page header ---------- */
.page-head { position: relative; padding: 140px 0 110px; background-size: cover; background-position: center; text-align: center; }
.page-head::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.75), rgba(0,0,0,.85)); }
.page-head .wrap { position: relative; }
.page-head h1 { font-size: clamp(32px, 5vw, 54px); margin-bottom: 18px; }
.crumb { font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: #a9a397; }
.crumb a:hover { color: var(--gold); }
.crumb i { font-style: normal; color: var(--gold); margin: 0 12px; }

/* ---------- Quote ---------- */
.quote { text-align: center; max-width: 860px; margin: 0 auto; }
.quote__mark { font: 400 90px/0.6 var(--serif); color: var(--gold); display: block; margin-bottom: 20px; }
.quote blockquote { margin: 0 0 24px; font: italic 300 clamp(22px, 3vw, 32px)/1.55 var(--serif); color: var(--white); }
.section--light .quote blockquote { color: #141414; }
.quote cite { font-style: normal; font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--gold); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 70px; }
.contact-item { display: flex; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.contact-item:first-of-type { padding-top: 0; }
.contact-item__icon { flex: none; width: 46px; height: 46px; border: 1px solid var(--gold); display: grid; place-items: center; }
.contact-item__icon svg { width: 18px; height: 18px; stroke: var(--gold); fill: none; stroke-width: 1.6; }
.contact-item h4 { font-size: 15px; margin-bottom: 4px; }
.contact-item p, .contact-item a { margin: 0; font-size: 14.5px; }
.contact-item a:hover { color: var(--gold); }
.form { background: var(--dark-2); border: 1px solid var(--line); padding: 50px; }
.form h3 { font-size: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 11.5px; letter-spacing: .2em; text-transform: uppercase; color: #a39d92; margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; background: #0d0d0d; border: 1px solid #2a2a2a; color: var(--white);
  font: 400 14.5px var(--sans); transition: border-color .3s; border-radius: 0;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--gold); }
.form-note { font-size: 12.5px; color: #8a857b; margin: 14px 0 0; }
.map { filter: grayscale(1) invert(.9) contrast(.9); border: 0; width: 100%; height: 420px; display: block; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--gold-grad); padding: 60px 0; color: #1a1408; }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-band h2 { color: #0a0a0a; font-size: clamp(22px, 2.6vw, 30px); margin: 0 0 6px; }
.cta-band p { margin: 0; color: #2b220f; }
.cta-band .btn { border-color: #0a0a0a; color: #0a0a0a; }
.cta-band .btn:hover { background: #0a0a0a; color: var(--gold-light); }

/* ---------- Footer ---------- */
.footer { background: #050505; padding: 90px 0 0; font-size: 14px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 50px; padding-bottom: 70px; }
.footer h4 { font-size: 16px; margin-bottom: 26px; position: relative; padding-bottom: 14px; }
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 1px; background: var(--gold); }
.footer li { margin-bottom: 10px; }
.footer li a:hover { color: var(--gold); }
.footer .brand { margin-bottom: 22px; }
.footer__bottom { border-top: 1px solid var(--line); padding: 26px 0; font-size: 12.5px; color: #77726a; }
.footer__bottom .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer .social a { border: 1px solid #2a2a2a; width: 36px; height: 36px; transition: border-color .3s; }
.footer .social a:hover { border-color: var(--gold); }
.social svg { width: 15px; height: 15px; fill: #cfc9bd; transition: fill .3s; }

/* ---------- Floating WA & back to top ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 60; width: 58px; height: 58px; border-radius: 50%;
  background: var(--gold-grad); display: grid; place-items: center; box-shadow: 0 10px 30px rgba(0, 0, 0, .5);
  transition: transform .3s var(--ease);
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 28px; height: 28px; fill: #0a0a0a; }
.to-top {
  position: fixed; right: 30px; bottom: 92px; z-index: 60; width: 42px; height: 42px; border: 1px solid var(--gold);
  background: rgba(10, 10, 10, .85); color: var(--gold); display: grid; place-items: center; cursor: pointer;
  opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s;
}
.to-top.is-visible { opacity: 1; visibility: visible; }
.to-top svg { width: 16px; height: 16px; }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(0, 0, 0, .94); display: none; align-items: center; justify-content: center; padding: 40px 70px; }
.lightbox.is-open { display: flex; }
.lightbox figure { margin: 0; max-width: 1100px; text-align: center; }
.lightbox img { max-height: 78vh; margin: 0 auto; border: 1px solid rgba(201, 162, 74, .3); }
.lightbox figcaption { margin-top: 16px; font: italic 400 16px var(--serif); color: #e7e2d8; }
.lightbox button { position: absolute; background: none; border: 1px solid rgba(255, 255, 255, .3); color: #fff; width: 48px; height: 48px; cursor: pointer; display: grid; place-items: center; transition: border-color .3s, color .3s; }
.lightbox button:hover { border-color: var(--gold); color: var(--gold); }
.lightbox button svg { width: 18px; height: 18px; }
.lightbox__close { top: 20px; right: 20px; }
.lightbox__prev { left: 14px; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 14px; top: 50%; transform: translateY(-50%); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .12s; }
.reveal-d2 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .slide__bg { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  /* absolute, bukan fixed: backdrop-filter pada .header menjadikannya containing block untuk elemen fixed */
  .nav { position: absolute; top: 100%; left: 0; right: 0; height: calc(100vh - 84px); height: calc(100dvh - 84px); background: #050505; opacity: 0; visibility: hidden; transform: translateY(-12px); transition: opacity .35s, visibility .35s, transform .35s var(--ease); overflow-y: auto; }
  .nav-open .nav { opacity: 1; visibility: visible; transform: none; }
  .nav-open { overflow: hidden; }
  .nav ul { flex-direction: column; gap: 0; padding: 20px; }
  .nav li { border-bottom: 1px solid var(--line); }
  .nav a { display: block; padding: 18px 4px; font-size: 13px; }
  .nav a::after { display: none; }
  .burger { display: block; }
  .header__cta { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .partners { grid-template-columns: repeat(3, 1fr); }
  .feature { background-attachment: scroll; }
}
@media (max-width: 860px) {
  .section { padding: 80px 0; }
  .grid-3, .grid-2, .product, .contact-grid { grid-template-columns: 1fr; gap: 50px; }
  .product--rev .product__media { order: 0; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .pf-grid { grid-template-columns: 1fr 1fr; }
  .project-list { columns: 1; }
  .about-badge { right: 0; }
  .about-media::before { display: none; }
  .topbar__info span:not(:first-child) { display: none; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 32px); }
  .topbar { display: none; }
  .hero { height: calc(100vh - 84px); min-height: 520px; }
  .brand__name { font-size: 15px; }
  .brand__name small { letter-spacing: .18em; }
  .pf-grid, .grid-4, .footer__grid, .form-row { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat:last-child { border-bottom: 0; }
  .partners { grid-template-columns: 1fr 1fr; }
  .form { padding: 30px 22px; }
  .hero__arrows { display: none; }
  .lightbox { padding: 20px; }
  .lightbox__prev, .lightbox__next { top: auto; bottom: 20px; transform: none; }
}