/* PT Sinar Pratama Konstruksi: company profile.
   Arah: lembar gambar teknik + cahaya fajar dari lambang logo.
   Palet inti: navy malam, kertas gambar krem, + satu aksen oranye merek. Dial: ENERGY 3 / RHYTHM 3 / MOTION 3. */

@font-face { font-family: 'Big Shoulders Display'; font-weight: 700; font-display: swap; src: url('assets/fonts/big-shoulders-display-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'Big Shoulders Display'; font-weight: 800; font-display: swap; src: url('assets/fonts/big-shoulders-display-latin-800-normal.woff2') format('woff2'); }
@font-face { font-family: 'Big Shoulders Display'; font-weight: 900; font-display: swap; src: url('assets/fonts/big-shoulders-display-latin-900-normal.woff2') format('woff2'); }
@font-face { font-family: Urbanist; font-weight: 300; font-display: swap; src: url('assets/fonts/urbanist-latin-300-normal.woff2') format('woff2'); }
@font-face { font-family: Urbanist; font-weight: 400; font-display: swap; src: url('assets/fonts/urbanist-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: Urbanist; font-weight: 600; font-display: swap; src: url('assets/fonts/urbanist-latin-600-normal.woff2') format('woff2'); }

:root {
  --night: #0a1330;
  --ink: #0d1936;
  --navy: #152c5c;
  --navy-hi: #2a4a96;
  --paper: #f4efe4;
  --paper-2: #ebe4d3;
  --orange: #eb8130;
  --orange-hi: #f5a15a;
  --fill: var(--paper);
  --f-display: 'Big Shoulders Display', 'Arial Narrow', Impact, sans-serif;
  --f-body: Urbanist, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --pad: clamp(20px, 6vw, 96px);
  --wrap: min(1240px, 92vw);
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 18px/1.62 var(--f-body); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; }
h1, h2, h3 { margin: 0; font-family: var(--f-display); font-weight: 900; text-transform: uppercase; line-height: .9; }
p { margin: 0 0 1em; }
a, button { cursor: pointer; }
:focus-visible { outline: 3px solid currentColor; outline-offset: 3px; }
section[id], article[id] { scroll-margin-top: 80px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: fixed; left: 12px; top: -80px; z-index: 100; background: var(--orange); color: var(--night); padding: 12px 18px; font-weight: 600; border-radius: 4px; text-decoration: none; }
.skip:focus { top: 12px; }

/* ================================================================ NAV */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; height: 76px; display: flex; align-items: center; gap: 12px; padding: 0 clamp(16px, 3vw, 40px); color: var(--paper); transition: background .3s, color .3s; border-bottom: 1.5px solid transparent; }
.nav.is-solid { background: var(--paper); color: var(--ink); border-bottom-color: var(--ink); }
.brand { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.brand img { border-radius: 50%; background: #fff; flex: none; }
.brand b { display: block; font: 800 21px/1 var(--f-display); letter-spacing: .04em; text-transform: uppercase; }
.brand small { display: block; font: 600 11px/1.3 var(--f-body); letter-spacing: .14em; text-transform: uppercase; opacity: .85; }
.links { margin-left: auto; display: flex; align-items: center; gap: 26px; }
.links a { position: relative; color: inherit; text-decoration: none; font-weight: 600; font-size: 15px; padding: 8px 0; }
.links a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px; background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.links a:hover::after, .links a[aria-current='true']::after { transform: scaleX(1); }
.links .portal { border: 1.5px solid currentColor; padding: 9px 16px; border-radius: 4px; transition: background .2s, color .2s, border-color .2s; }
.links .portal::after { display: none; }
.links .portal:hover { background: var(--orange); border-color: var(--orange); color: var(--night); }
.icon { width: 44px; height: 44px; border: 1.5px solid currentColor; border-radius: 4px; background: none; color: inherit; display: grid; place-items: center; transition: background .2s, color .2s; }
.icon:hover { background: var(--orange); border-color: var(--orange); color: var(--night); }
.icon svg { fill: currentColor; }
.burger { display: none; }
.burger svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.pause .i-play { display: none; }
.pause[aria-pressed='true'] .i-play { display: block; }
.pause[aria-pressed='true'] .i-pause { display: none; }

.rail { position: fixed; left: 22px; top: 50%; z-index: 40; height: 240px; transform: translateY(-50%); display: none; flex-direction: column; justify-content: space-between; align-items: center; mix-blend-mode: difference; color: #fff; }
.rail::before { content: ''; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: rgba(255, 255, 255, .35); }
.rail-fill { position: absolute; top: 0; left: 50%; width: 3px; margin-left: -1.5px; height: calc(var(--p, 0) * 100%); background: #fff; }
.rail a { position: relative; width: 11px; height: 11px; border: 1.5px solid #fff; background: #000; border-radius: 50%; }
.rail a::before { content: ''; position: absolute; inset: -17px -12px; }
.rail a.on { background: #fff; }
@media (min-width: 1360px) { .rail { display: flex; } }

/* =============================================================== HERO */
.hero { position: relative; min-height: max(100svh, 700px); overflow: hidden; color: var(--paper); background: linear-gradient(180deg, #060c22 0%, #0d1b44 36%, #1b2d62 58%, #3b3560 76%, #a24f3b 92%, var(--orange) 100%); isolation: isolate; }
.hero::before { content: ''; position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse 70% 46% at 50% 88%, rgba(245, 161, 90, .75), transparent 70%); opacity: 1; }
.hero-art { position: absolute; inset: auto 0 0 0; height: 80%; }
.hero-art svg { display: block; width: 100%; height: 100%; overflow: visible; }
.hero-art .ly, .hero-art .px { will-change: transform; }
.hero-copy { position: relative; z-index: 2; padding: clamp(112px, 17vh, 176px) var(--pad) 0; will-change: transform, opacity; }
.hero h1 { font-size: clamp(58px, 11.4vw, 196px); line-height: .84; letter-spacing: -.005em; }
.hero h1 .ln { display: block; overflow: hidden; padding-bottom: .05em; }
.hero h1 .ln > span { display: block; }
.hero h1 i { font-style: normal; color: var(--orange); }
.lede { max-width: 31em; margin: clamp(18px, 3vh, 34px) 0 22px; padding: 16px 20px; font-size: clamp(17px, 1.45vw, 20px); color: var(--paper); background: rgba(6, 12, 34, .88); border: 1.5px solid rgba(244, 239, 228, .45); border-radius: 4px; }
.cta { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 28px; margin: 0; }
.btn { display: inline-flex; align-items: center; min-height: 52px; padding: 0 26px; border-radius: 4px; font: 700 17px var(--f-body); text-decoration: none; color: var(--night); background: var(--orange); transition: transform .2s, background .2s; }
.btn:hover { background: var(--orange-hi); transform: translateY(-2px); }
.btn-link { color: inherit; font-weight: 600; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; text-decoration-color: var(--orange); }
.btn-link:hover { text-decoration-color: currentColor; }
.sheet-tag { position: absolute; left: var(--pad); bottom: 18px; z-index: 3; margin: 0; font: 600 11px/1 var(--f-body); letter-spacing: .1em; color: rgba(244, 239, 228, .85); }

/* sinar: fajar terbit saat halaman dimuat */
@media (scripting: enabled) {
  .hero h1 .ln > span { transform: translateY(108%); transition: transform 1.1s cubic-bezier(.2, .8, .15, 1); }
  .is-ready .hero h1 .ln > span { transform: none; }
  .is-ready .hero h1 .ln:nth-child(2) > span { transition-delay: .12s; }
  .is-ready .hero h1 .ln:nth-child(3) > span { transition-delay: .24s; }
  .hero .lede, .hero .cta { opacity: 0; transform: translateY(24px); transition: opacity .9s .7s, transform .9s .7s; }
  .is-ready .hero .lede, .is-ready .hero .cta { opacity: 1; transform: none; }
  .is-ready .hero .cta { transition-delay: .85s; }
  .hero .sun-g { transform: translateY(340px); transition: transform 3s cubic-bezier(.2, .7, .1, 1) .15s; }
  .is-ready .hero .sun-g { transform: none; }
  .hero::before { opacity: 0; transition: opacity 3s .3s; }
  .is-ready .hero::before { opacity: 1; }
}
.hero .rays { fill: var(--orange-hi); opacity: .06; animation: spin 260s linear infinite; }
.ly-far { fill: #26407f; opacity: .55; }
.ly-mid { fill: #0f2050; }
.ly-near { fill: #060d24; }
.ly-mid .band { fill: var(--orange); }
.ly-mid .s-mid { fill: none; stroke: #0f2050; stroke-width: 4; }
.ly-near .brace { fill: none; stroke: #060d24; stroke-width: 4; stroke-linecap: round; }
.hero .win { fill: var(--orange-hi); }

/* ================================================================ PITA */
.tape { position: relative; z-index: 4; margin-top: -30px; padding: 30px 0; overflow: hidden; }
.tape-in { margin: 0 -5vw; transform: rotate(-1.5deg) skewX(var(--skew, 0deg)); background: var(--orange); color: var(--night); border-block: 3px solid var(--night); overflow: hidden; }
.tape-track { display: flex; width: max-content; gap: 30px; padding: 14px 0; font: 800 38px/1 var(--f-display); text-transform: uppercase; animation: tape 46s linear infinite; }
.tape-track span { white-space: nowrap; }
.tape-track i { flex: none; width: 14px; height: 14px; margin-top: 11px; background: var(--night); border-radius: 50%; }
@keyframes tape { to { transform: translateX(-50%); } }

/* ============================================================ DISIPLIN */
.disiplin { position: relative; padding: clamp(80px, 11vw, 170px) 0 clamp(60px, 8vw, 120px); background: var(--paper); overflow-x: clip; }
.intro { width: var(--wrap); margin: 0 auto clamp(56px, 12vh, 140px); display: grid; grid-template-columns: 1.15fr .85fr; gap: 6vw; align-items: end; }
.disiplin h2, .boiler h2, .layanan h2, .industri h2, .integrasi h2, .profil h2 { font-size: clamp(46px, 7.2vw, 118px); }
.intro p { font-size: clamp(18px, 1.6vw, 22px); max-width: 34em; }
.index { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 0; padding: 0; list-style: none; }
.index a { display: flex; align-items: center; gap: 10px; padding: 7px 16px 7px 7px; border: 1.5px solid var(--ink); border-radius: 4px; color: inherit; font-weight: 600; text-decoration: none; transition: background .2s; }
.index a:hover { background: var(--orange); }
.index b { display: grid; place-items: center; width: 30px; height: 30px; background: var(--ink); color: var(--paper); font: 800 19px/1 var(--f-display); }

.sheets { width: var(--wrap); margin: 0 auto; position: relative; }
.sheet {
  --k: 0; position: sticky; top: calc(92px + var(--i) * 22px); display: grid; gap: clamp(20px, 3vw, 48px); align-items: center;
  min-height: min(80vh, 720px); margin-bottom: clamp(36px, 9vh, 110px); padding: clamp(26px, 3.6vw, 56px);
  background: var(--paper); border: 1.5px solid var(--ink); border-radius: 6px;
  box-shadow: 0 30px 70px -36px rgba(10, 19, 48, .55);
  transform: scale(calc(1 - var(--k) * .045)); transform-origin: 50% 0; filter: brightness(calc(1 - var(--k) * .09));
}
.sheet::before { content: ''; position: absolute; inset: 9px; pointer-events: none; --c: var(--ink);
  background:
    linear-gradient(var(--c), var(--c)) 0 0 / 16px 1.5px, linear-gradient(var(--c), var(--c)) 0 0 / 1.5px 16px,
    linear-gradient(var(--c), var(--c)) 100% 0 / 16px 1.5px, linear-gradient(var(--c), var(--c)) 100% 0 / 1.5px 16px,
    linear-gradient(var(--c), var(--c)) 0 100% / 16px 1.5px, linear-gradient(var(--c), var(--c)) 0 100% / 1.5px 16px,
    linear-gradient(var(--c), var(--c)) 100% 100% / 16px 1.5px, linear-gradient(var(--c), var(--c)) 100% 100% / 1.5px 16px;
  background-repeat: no-repeat; opacity: .55; }
.sheet h3 { font-size: clamp(54px, 6.6vw, 104px); margin-bottom: .22em; }
.sheet p { font-size: clamp(18px, 1.5vw, 21px); max-width: 30em; }
.sheet-body { position: relative; z-index: 1; }
.letter { position: absolute; z-index: -1; right: -.12em; top: -.95em; font: 900 clamp(200px, 26vw, 380px)/1 var(--f-display); color: transparent; -webkit-text-stroke: 1.5px rgba(13, 25, 54, .1); user-select: none; pointer-events: none; }
.sheet-art { position: relative; }
.titleblock { position: absolute; right: 22px; bottom: 18px; z-index: 2; display: flex; margin: 0; border: 1.5px solid var(--ink); background: var(--paper); font: 600 11px/1 var(--f-body); letter-spacing: .06em; }
.titleblock span { padding: 8px 12px; }
.titleblock span + span { border-left: 1.5px solid var(--ink); }
.scope { display: flex; flex-wrap: wrap; align-items: center; font-weight: 600; }
.scope i { width: 8px; height: 8px; margin: 0 14px; background: var(--orange); }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 26px 0 0; }
.duo dt { font: 800 28px/1 var(--f-display); text-transform: uppercase; padding-top: 12px; border-top: 3px solid var(--orange); margin-bottom: 8px; }
.duo dd { margin: 0; font-size: 16px; line-height: 1.5; }
.flowline { display: flex; align-items: center; gap: 0; margin: 26px 0 0; max-width: 460px; }
.flowline b { padding: 9px 14px; border: 1.5px solid var(--ink); font: 700 18px/1 var(--f-display); text-transform: uppercase; letter-spacing: .03em; background: var(--paper); }
.flowline i { position: relative; flex: 1; min-width: 24px; height: 2px; background: var(--ink); }
.flowline i::after { content: ''; position: absolute; top: -4px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: var(--orange); animation: slide 2.4s linear infinite; }
@keyframes slide { from { left: 0; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } to { left: calc(100% - 10px); opacity: 0; } }

/* komposisi tiap lembar sengaja berbeda */
.sheet--civil { grid-template-columns: .8fr 1.2fr; }
.sheet--civil .sheet-art { order: 2; }
.sheet--mech { grid-template-columns: 1.2fr .8fr; }
.sheet--mech .sheet-art { order: -1; }
.sheet--elec { grid-template-columns: 1fr; gap: 10px; }
.sheet--elec .sheet-art { max-width: 760px; width: 100%; margin: 0 auto; order: -1; }
.sheet--elec .sheet-body { display: grid; grid-template-columns: 1fr 1fr; gap: 0 4vw; align-items: end; }
.sheet--elec h3 { grid-column: 1 / -1; }
.sheet--elec .flowline { margin: 0; }
.sheet--plumb { grid-template-columns: .72fr 1.28fr; overflow: visible; }
.sheet--plumb .sheet-art { order: 2; margin-right: -3%; transform: scale(1.06); transform-origin: 70% 50%; }
.sheet--plumb .sheet-body { align-self: end; }

/* ================================================================ ART */
.art { display: block; width: 100%; height: auto; overflow: visible; color: var(--ink); }
.art .s { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.art .thin { stroke-width: 1.2; }
.art .s3 { stroke-width: 3.4; }
.art .f { fill: currentColor; }
.art .fp { fill: var(--fill); }
.art .fo { fill: var(--orange); }
.art .so { stroke: var(--orange); }
.art .dim { font: 600 11px/1 var(--f-body); letter-spacing: .06em; fill: currentColor; opacity: .8; }
.art .lbl { font: 800 27px/1 var(--f-display); letter-spacing: .04em; fill: currentColor; }
.art .lbl.big { font-size: 36px; }
.art .slab { fill: currentColor; }
.art .pipe { fill: none; stroke: currentColor; stroke-width: 18; stroke-linejoin: round; }
.art .pipe-in { fill: none; stroke: var(--fill); stroke-width: 14; stroke-linejoin: round; }
.art .pipe-s { fill: none; stroke: currentColor; stroke-width: 10; stroke-linejoin: round; }
.art .flow { fill: none; stroke: var(--navy); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 2 16; animation: flow 1.3s linear infinite; }
.art .flow.steam { stroke: var(--orange-hi); stroke-width: 3; }
.art .water { fill: var(--navy); opacity: .2; }
.art .gear { animation: spin var(--t, 10s) linear infinite; }
.art .gear[style*='--dir:-1'] { animation-name: spin-r; }
.art .pulse { fill: var(--orange); offset-rotate: 0deg; animation: travel 3.2s linear infinite; }
.art .puff { opacity: 0; transform-box: fill-box; transform-origin: center; animation: smoke 9s ease-out infinite; }
.art .puff.vent { animation-duration: 5s; }
.art .win { fill: var(--orange); animation: win 3.8s steps(1) infinite; }
.art .needle { animation: needle 3.4s ease-in-out infinite alternate; }
.art .needle.n2 { animation-delay: -1.4s; animation-duration: 4.1s; }
.art .needle.g { animation-duration: 5s; }
.art .hook { animation: swing 5.5s ease-in-out infinite alternate; }
.art .jib { animation: jibmove 14s ease-in-out infinite alternate; }
.art .wave { animation: wave 3.6s ease-in-out infinite alternate; }
.art .wave.w2 { animation-duration: 5s; }
.art .bubble { fill: none; stroke: currentColor; stroke-width: 1.2; opacity: 0; animation: bub 3s ease-in infinite; }
.art .drip { fill: var(--navy); opacity: 0; transform-box: fill-box; animation: drip 1.4s ease-in infinite; }
.art .lamp { fill: var(--orange); animation: lamp 2.4s steps(1) infinite; }
.art .lamp.l1 { animation-delay: .8s; }
.art .lamp.l2 { animation-delay: 1.6s; }
.art .hot { stroke: var(--orange-hi); stroke-dasharray: 4 10; animation: flow .9s linear infinite; }
.art .ho { fill: var(--orange-hi); }
.art .fl1 { fill: var(--orange); transform-box: fill-box; transform-origin: left center; animation: flick .7s ease-in-out infinite alternate; }
.art .fl2 { fill: var(--orange-hi); transform-box: fill-box; transform-origin: left center; animation: flick .55s ease-in-out infinite alternate -.2s; }
.art .fl3 { fill: #ffe6bd; transform-box: fill-box; transform-origin: left center; animation: flick .45s ease-in-out infinite alternate -.35s; }
.art .belt path:last-child { animation: flow 1.6s linear infinite; stroke-dasharray: 12 12; }
.art .draw { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.4s cubic-bezier(.3, .7, .2, 1) var(--d, 0s); }
.art.seen .draw { stroke-dashoffset: 0; }
.art:not(.live) * { animation-play-state: paused !important; }
.art .rays { transform-box: view-box; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-r { to { transform: rotate(-360deg); } }
@keyframes flow { to { stroke-dashoffset: -18; } }
@keyframes travel { from { offset-distance: 0%; } to { offset-distance: 100%; } }
@keyframes smoke { 0% { opacity: 0; transform: translate(0, 0) scale(.5); } 14% { opacity: .95; } 100% { opacity: 0; transform: translate(70px, -230px) scale(3.2); } }
@keyframes win { 0%, 44% { opacity: 1; } 50%, 60% { opacity: .2; } 66%, 100% { opacity: 1; } }
@keyframes needle { from { transform: rotate(-36deg); } to { transform: rotate(46deg); } }
@keyframes swing { from { transform: rotate(-3deg); } to { transform: rotate(3deg); } }
@keyframes jibmove { from { transform: rotate(-.7deg); } to { transform: rotate(.7deg); } }
@keyframes wave { from { transform: translate(0, 4px); } to { transform: translate(-36px, -6px); } }
@keyframes bub { 0% { transform: translateY(0); opacity: 0; } 20% { opacity: .85; } 100% { transform: translateY(-150px); opacity: 0; } }
@keyframes drip { 0% { transform: translateY(0) scale(.6); opacity: 0; } 15% { opacity: 1; transform: translateY(0) scale(1); } 100% { transform: translateY(46px); opacity: 0; } }
@keyframes lamp { 0%, 55% { opacity: 1; } 56%, 100% { opacity: .15; } }
@keyframes flick { from { transform: scale(1, .9) skewY(-1.5deg); opacity: .92; } to { transform: scale(1.07, 1.12) skewY(1.5deg); opacity: 1; } }

/* ================================================================ BOILER */
.boiler { --fill: #101d46; position: relative; background: var(--night); color: var(--paper); padding: clamp(80px, 11vw, 160px) 0 clamp(70px, 9vw, 130px); overflow: hidden; }
.boiler::before { content: ''; position: absolute; left: 50%; top: 56%; width: 70vw; height: 70vw; max-width: 1000px; max-height: 1000px; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(235, 129, 48, .22), transparent 62%); pointer-events: none; }
.boiler-head { position: relative; width: var(--wrap); margin: 0 auto clamp(28px, 4vw, 56px); display: grid; grid-template-columns: 1.1fr .9fr; gap: 6vw; align-items: end; }
.boiler-head .mark { position: absolute; z-index: 0; right: 0; top: -.5em; margin: 0; font: 900 clamp(200px, 30vw, 460px)/.8 var(--f-display); color: transparent; -webkit-text-stroke: 1.5px rgba(244, 239, 228, .14); pointer-events: none; }
.boiler-head h2, .boiler-head p { position: relative; z-index: 1; }
.boiler-head p:last-child { font-size: clamp(18px, 1.6vw, 22px); max-width: 28em; margin: 0; }
.boiler-stage { position: relative; width: min(1100px, 92vw); margin: 0 auto; color: var(--paper); }
.boiler-stage .art { color: var(--paper); }
.boiler-stage .art .water { fill: var(--orange-hi); opacity: .16; }
.boiler-stage .art .flow { stroke: var(--orange-hi); }
.hs { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%); width: 44px; height: 44px; padding: 0; border-radius: 50%; border: 2px solid var(--orange); background: rgba(10, 19, 48, .78); color: var(--paper); font: 800 17px/1 var(--f-display); transition: background .2s, color .2s, transform .2s; }
.hs::after { content: ''; position: absolute; inset: -8px; border-radius: 50%; border: 1.5px solid var(--orange); opacity: 0; animation: ripple 2.8s ease-out infinite; }
.hs:hover, .hs.on { background: var(--orange); color: var(--night); transform: translate(-50%, -50%) scale(1.12); }
.hs.on::after { animation-duration: 1.6s; }
@keyframes ripple { 0% { transform: scale(.7); opacity: .8; } 100% { transform: scale(1.5); opacity: 0; } }
.hs-list { width: min(1100px, 92vw); margin: 18px auto 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.hs-list button { display: flex; align-items: center; gap: 8px; padding: 6px 12px 6px 6px; min-height: 44px; border: 1.5px solid rgba(244, 239, 228, .45); border-radius: 4px; background: none; color: var(--paper); font: 600 15px var(--f-body); transition: background .2s, color .2s, border-color .2s; }
.hs-list b { display: grid; place-items: center; width: 30px; height: 30px; background: rgba(244, 239, 228, .14); font: 800 17px/1 var(--f-display); }
.hs-list button:hover, .hs-list button.on { background: var(--orange); border-color: var(--orange); color: var(--night); }
.hs-list button.on b, .hs-list button:hover b { background: var(--night); color: var(--paper); }
.boiler-read { position: relative; width: min(1100px, 92vw); margin: 34px auto 0; padding-top: 26px; display: grid; grid-template-columns: auto 1fr; gap: 4px 28px; border-top: 1.5px solid rgba(244, 239, 228, .3); }
.boiler-read .no { grid-row: span 2; margin: 0; font: 900 clamp(88px, 12vw, 160px)/.8 var(--f-display); color: var(--orange); }
.boiler-read h3 { align-self: end; font-size: clamp(34px, 4vw, 56px); }
.boiler-read p:last-child { margin: 0; font-size: clamp(18px, 1.6vw, 22px); max-width: 44em; }

/* ============================================================== LAYANAN */
.layanan { background: var(--paper-2); padding: clamp(80px, 11vw, 160px) max(4vw, calc((100vw - 1240px) / 2)); display: grid; grid-template-columns: 1fr minmax(360px, 540px); gap: 5vw; align-items: center; overflow: hidden; }
.layanan-text h2 { margin-bottom: clamp(28px, 5vw, 64px); font-size: clamp(42px, 6vw, 100px); }
.tabpanel { min-height: 280px; }
.tabpanel:not([hidden]) { animation: panel .55s cubic-bezier(.2, .8, .2, 1); }
@keyframes panel { from { opacity: 0; transform: translateY(24px); } }
.tabpanel .en { display: flex; align-items: center; gap: 12px; margin: 0 0 12px; font: 600 15px var(--f-body); color: var(--navy); }
.tabpanel .en::before { content: ''; width: 32px; height: 3px; background: var(--orange); }
.tabpanel h3 { font-size: clamp(64px, 9vw, 148px); margin-bottom: .16em; }
.tabpanel p:last-child { max-width: 26em; font-size: clamp(18px, 1.6vw, 22px); }
.ring { position: relative; width: min(540px, 88vw); aspect-ratio: 1; margin: 0 auto; }
.ring-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.ring-dash { fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-dasharray: 3 11; transform-origin: 260px 260px; animation: spin 90s linear infinite; }
.ring-solid { fill: none; stroke: var(--ink); stroke-width: 1.5; opacity: .35; }
.ring-pulse { fill: var(--orange); offset-rotate: 0deg; animation: travel 14s linear infinite; }
.ring-pulse.p2 { animation-delay: -7s; }
.ring-core { position: absolute; left: 50%; top: 50%; width: 32%; height: auto; transform: translate(-50%, -50%); border-radius: 50%; background: #fff; box-shadow: 0 18px 40px -18px rgba(10, 19, 48, .5); animation: coreSpin 80s linear infinite; }
@keyframes coreSpin { to { transform: translate(-50%, -50%) rotate(360deg); } }
.node { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%); display: flex; align-items: center; gap: 10px; padding: 7px 16px 7px 7px; min-height: 44px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper); color: var(--ink); font: 600 16px var(--f-body); white-space: nowrap; transition: background .2s, transform .2s; }
.node b { display: grid; place-items: center; width: 30px; height: 30px; background: var(--ink); color: var(--paper); font: 800 18px/1 var(--f-display); }
.node:hover { transform: translate(-50%, -50%) scale(1.06); }
.node[aria-selected='true'] { background: var(--orange); }

/* ============================================================== INDUSTRI */
.industri { --fill: #101d46; position: relative; background: var(--night); color: var(--paper); padding: clamp(80px, 11vw, 160px) 0 clamp(70px, 9vw, 130px); overflow: hidden; }
.industri-head { width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: 1.2fr .8fr; gap: 6vw; align-items: end; }
.industri-head p { margin: 0; font-size: clamp(18px, 1.6vw, 22px); max-width: 28em; }
.pks { --curtain: var(--night); margin-top: clamp(40px, 6vw, 80px); color: var(--paper); will-change: transform; }
.pks .art { min-width: 900px; }
.collage { position: relative; width: var(--wrap); margin: clamp(-60px, -4vw, -20px) auto 0; display: grid; grid-template-columns: 5fr 6fr; gap: 24px clamp(18px, 3vw, 44px); align-items: start; }
.col { display: grid; gap: 26px; }
.col-r { margin-top: 90px; }
.ph { margin: 0; position: relative; will-change: transform; }
.ph-c { width: 88%; }
.ph-d { width: 94%; margin-left: auto; }
.ph-a .duo-img { clip-path: polygon(0 0, 100% 0, 100% 86%, 90% 100%, 0 100%); }
.ph-b .duo-img { clip-path: polygon(8% 0, 100% 0, 100% 100%, 0 100%, 0 14%); }
.ph-c .duo-img { clip-path: polygon(0 0, 100% 0, 94% 100%, 0 100%); }
.ph-d .duo-img { clip-path: polygon(6% 0, 100% 0, 100% 100%, 0 100%); }
.duo-img { position: relative; isolation: isolate; background: var(--navy); }
.duo-img img { display: block; width: 100%; height: auto; mix-blend-mode: screen; filter: grayscale(1) contrast(1.12) brightness(.92); transition: filter .5s; }
.duo-img::after { content: ''; position: absolute; inset: 0; background: var(--orange); mix-blend-mode: soft-light; opacity: .55; transition: opacity .5s; }
.ph:hover img { mix-blend-mode: normal; filter: none; }
.ph:hover .duo-img::after { opacity: 0; }
.ph figcaption { margin-top: 10px; font-size: 15px; color: rgba(244, 239, 228, .9); }
.credit { grid-column: 1 / -1; margin: 6px 0 0; font-size: 14px; color: rgba(244, 239, 228, .8); }

/* ============================================================= INTEGRASI */
.integrasi { background: var(--paper); padding: clamp(80px, 11vw, 160px) 0; display: grid; grid-template-columns: minmax(340px, .9fr) 1.1fr; gap: 3vw; align-items: center; padding-inline: max(4vw, calc((100vw - 1320px) / 2)); }
.int-text h2 { font-size: clamp(44px, 5.6vw, 92px); }
.int-text p { font-size: clamp(18px, 1.6vw, 22px); max-width: 26em; margin-top: 28px; }
.int-art .art { min-width: 0; }
.int-art .pulse { fill: var(--orange); }
.int-art .lbl { fill: var(--ink); }

/* ================================================================ PROFIL */
.profil { background: var(--paper-2); padding: clamp(80px, 10vw, 150px) max(4vw, calc((100vw - 1240px) / 2)); display: grid; grid-template-columns: 1fr minmax(320px, 560px); gap: 6vw; align-items: start; }
.profil-text p { margin-top: 28px; font-size: clamp(18px, 1.6vw, 22px); max-width: 30em; }
.tblock { width: 100%; border-collapse: collapse; background: var(--paper); border: 1.5px solid var(--ink); }
.tblock th, .tblock td { padding: 15px 18px; border: 1px solid var(--ink); text-align: left; vertical-align: top; }
.tblock th { width: 30%; background: var(--paper-2); font: 700 13px/1.3 var(--f-body); letter-spacing: .06em; text-transform: uppercase; }
.tblock td { font-weight: 600; }

/* ================================================================ KONTAK */
.kontak { position: relative; overflow: hidden; background: var(--orange); color: var(--night); padding: clamp(90px, 12vw, 190px) 0; isolation: isolate; }
.kontak::before, .kontak::after { content: ''; position: absolute; z-index: -1; right: -12vw; bottom: -22vw; width: 60vw; height: 60vw; border: 2px solid rgba(10, 19, 48, .35); border-radius: 50%; animation: ripple2 9s ease-out infinite; }
.kontak::after { animation-delay: -4.5s; }
@keyframes ripple2 { 0% { transform: scale(.35); opacity: .9; } 100% { transform: scale(1.25); opacity: 0; } }
.kontak-in { width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: 1.2fr .8fr; gap: 6vw; align-items: end; }
.kontak h2 { font-size: clamp(64px, 12vw, 200px); line-height: .82; }
.kontak .big { font: 600 clamp(20px, 2.2vw, 28px)/1.35 var(--f-body); max-width: 20em; }
.contact { margin: 26px 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.contact li { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding-top: 12px; border-top: 2px solid var(--night); }
.contact span { font: 700 13px/1.6 var(--f-body); letter-spacing: .06em; text-transform: uppercase; }
.contact a, .contact b { color: inherit; font-weight: 600; font-size: 19px; overflow-wrap: anywhere; }
.contact-pending { margin: 26px 0; padding: 16px 18px; border: 2px dashed var(--night); font-weight: 600; }
.portal-note { font-size: 16px; margin: 0; }
.portal-note a { color: inherit; font-weight: 600; text-underline-offset: 4px; text-decoration-thickness: 2px; }

/* ================================================================ FOOTER */
.foot { background: var(--night); color: var(--paper); padding: clamp(40px, 6vw, 80px) var(--pad) 28px; overflow: hidden; }
.wordmark { margin: 0 0 clamp(20px, 3vw, 40px); font: 900 clamp(160px, 36vw, 620px)/.74 var(--f-display); text-align: center; text-transform: uppercase; color: transparent; -webkit-text-stroke: 2px rgba(244, 239, 228, .3);
  background: linear-gradient(0deg, var(--orange) calc(var(--fill-p, 0) * 100%), transparent 0) text; -webkit-background-clip: text; background-clip: text; }
.foot-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 30px; border-top: 1.5px solid rgba(244, 239, 228, .3); padding-top: 20px; font-size: 15px; }
.foot-row p { margin: 0; }
.foot-row a { color: inherit; margin-left: 24px; text-underline-offset: 4px; }
.foot-row p:last-child a:first-child { margin-left: 0; }

/* =========================================================== REVEAL GERAK */
@media (scripting: enabled) {
  [data-reveal='rise'] { opacity: 0; transform: translateY(46px); transition: opacity .9s cubic-bezier(.2, .8, .2, 1) var(--d, 0s), transform .9s cubic-bezier(.2, .8, .2, 1) var(--d, 0s); }
  [data-reveal='rise'].in { opacity: 1; transform: none; }
  /* tirai: digeser keluar (bukan clip-path, supaya IntersectionObserver tetap melihat elemennya) */
  [data-reveal='wipe'] { position: relative; }
  [data-reveal='wipe']::after { content: ''; position: absolute; inset: -2px; z-index: 3; pointer-events: none; background: var(--curtain, var(--paper)); transform-origin: 100% 50%; transition: transform 1.2s cubic-bezier(.7, 0, .2, 1) var(--d, 0s); }
  [data-reveal='wipe'].in::after { transform: scaleX(0); }
}

/* ================================================================ MOBILE */
@media (max-width: 1080px) {
  .intro, .boiler-head, .industri-head, .integrasi, .profil, .kontak-in, .layanan { grid-template-columns: minmax(0, 1fr); }
  .layanan { gap: 56px; }
  .sheet { position: relative; top: auto; transform: none !important; filter: none !important; grid-template-columns: minmax(0, 1fr) !important; margin-bottom: 28px; }
  .sheet--civil .sheet-art, .sheet--plumb .sheet-art { order: 0; }
  .sheet--plumb .sheet-art { transform: none; margin-right: 0; }
  .sheet--elec .sheet-body { grid-template-columns: 1fr; }
  .titleblock { position: static; margin-top: 14px; justify-self: start; }
  .collage { grid-template-columns: 1fr; }
  .col-r { margin-top: 0; }
  .pks, .int-art { overflow-x: clip; }
}
@media (max-width: 980px) {
  .links { position: fixed; inset: 76px 0 0 0; margin: 0; flex-direction: column; align-items: flex-start; gap: 0; padding: 28px clamp(16px, 5vw, 40px); background: var(--night); color: var(--paper); transform: translateY(-110%); visibility: hidden; transition: transform .4s cubic-bezier(.7, 0, .2, 1), visibility 0s .4s; overflow-y: auto; }
  .nav.open .links { transform: none; visibility: visible; transition: transform .4s cubic-bezier(.7, 0, .2, 1); }
  .nav.open { background: var(--night); color: var(--paper); }
  .links a { font: 800 44px/1.2 var(--f-display); text-transform: uppercase; padding: 8px 0; width: 100%; border-bottom: 1px solid rgba(244, 239, 228, .2); }
  .links .portal { margin-top: 24px; font: 700 18px var(--f-body); text-transform: none; width: auto; padding: 14px 22px; }
  .pause { margin-left: auto; }
  .burger { display: grid; }
  .hs { display: none; }
  .brand small { display: none; }
}
@media (max-width: 720px) {
  body { font-size: 17px; }
  .hero h1 { font-size: clamp(40px, 14.4vw, 120px); }
  .titleblock { flex-wrap: wrap; max-width: 100%; }
  .titleblock span { padding: 7px 10px; }
  .hero-art { height: 62%; }
  .sheet-tag { display: none; }
  .duo { grid-template-columns: 1fr; }
  .flowline b { padding: 7px 9px; font-size: 15px; }
  .flowline i { min-width: 8px; }
  .int-art .lbl { font-size: 46px; }
  .int-art .lbl.big { font-size: 52px; }
  .tape-track { font-size: 30px; }
  .contact li { grid-template-columns: 1fr; gap: 2px; }
  .node { font-size: 14px; padding-right: 10px; }
  .node b { width: 26px; height: 26px; }
  .boiler-read { grid-template-columns: 1fr; }
  .boiler-read .no { grid-row: auto; font-size: 72px; }
  .pks .art { min-width: 760px; }
  .tblock th { width: 36%; }
}

/* ============================================ GERAK DIJEDA / REDUCED MOTION */
html[data-motion='off'] *, html[data-motion='off'] *::before, html[data-motion='off'] *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
html[data-motion='off'] .hero h1 .ln > span, html[data-motion='off'] .hero .lede, html[data-motion='off'] .hero .cta, html[data-motion='off'] .hero .sun-g { transform: none !important; opacity: 1 !important; }
html[data-motion='off'] [data-reveal] { opacity: 1 !important; transform: none !important; }
html[data-motion='off'] [data-reveal]::after { display: none; }
html[data-motion='off'] .art .draw { stroke-dashoffset: 0 !important; }
html[data-motion='off'] .art .puff { opacity: .25; }
html[data-motion='off'] .art .pulse { offset-distance: 50%; }
html[data-motion='off'] .tape-in { transform: rotate(-1.5deg); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .hero h1 .ln > span, .hero .lede, .hero .cta, .hero .sun-g { transform: none !important; opacity: 1 !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  [data-reveal]::after { display: none; }
  .art .draw { stroke-dashoffset: 0 !important; }
}