/* ============================================================
   PT. CIPTA INFORMATIKA SEMESTA (CIS) — cis-btm.com
   Dark tech theme · cyan/blue accents
   ============================================================ */
:root{
  --bg:#050b18;
  --bg-2:#081226;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.075);
  --line:rgba(148,197,255,.14);
  --text:#e8f1ff;
  --muted:#9db2d0;
  --accent:#38bdf8;
  --accent-2:#22d3ee;
  --grad:linear-gradient(92deg,#38bdf8,#22d3ee 55%,#4ade80);
  --radius:18px;
  --shadow:0 24px 60px -24px rgba(2,10,30,.85);
  --font-body:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-disp:"Space Grotesk","Plus Jakarta Sans",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-disp);line-height:1.15;margin:0 0 .6em}
h1{font-size:clamp(2.4rem,6vw,4.1rem);letter-spacing:-.02em;font-weight:700}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem);letter-spacing:-.015em}
h3{font-size:1.25rem}
p{margin:0 0 1em;color:var(--muted)}
.container{width:min(1180px,92%);margin-inline:auto}
.section{padding:clamp(72px,9vw,120px) 0;position:relative}

/* ambient background */
#net-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:-2;opacity:.55}
.bg-glow{position:fixed;border-radius:50%;filter:blur(90px);z-index:-3;pointer-events:none}
.bg-glow--1{width:520px;height:520px;top:-160px;left:-140px;background:radial-gradient(circle,rgba(56,189,248,.16),transparent 65%)}
.bg-glow--2{width:620px;height:620px;bottom:-220px;right:-180px;background:radial-gradient(circle,rgba(34,211,238,.12),transparent 65%)}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .3s,box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(5,11,24,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line);box-shadow:0 10px 30px -18px rgba(0,0,0,.7)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:11px;z-index:70}
.brand-mark{width:40px;height:40px;flex:none}
.brand-text{font-family:var(--font-disp);font-weight:700;font-size:1.45rem;letter-spacing:.06em;display:flex;flex-direction:column;line-height:1}
.brand-sub{font-family:var(--font-body);font-weight:600;font-size:.52rem;letter-spacing:.18em;color:var(--muted);margin-top:4px}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav>a:not(.nav-cta){font-weight:600;font-size:.94rem;color:var(--muted);transition:color .2s;position:relative}
.main-nav>a:not(.nav-cta)::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--grad);transition:right .25s}
.main-nav>a:not(.nav-cta):hover{color:var(--text)}
.main-nav>a:not(.nav-cta):hover::after{right:0}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer;z-index:70}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--text);margin:5px 0;border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-disp);font-weight:600;border-radius:999px;padding:15px 28px;font-size:.98rem;cursor:pointer;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn--primary{background:linear-gradient(92deg,#0ea5e9,#06b6d4);color:#03121f;box-shadow:0 14px 34px -12px rgba(14,165,233,.55)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 20px 42px -12px rgba(14,165,233,.7)}
.btn--ghost{border-color:var(--line);color:var(--text);background:var(--panel)}
.btn--ghost:hover{background:var(--panel-strong);transform:translateY(-2px)}
.btn--sm{padding:10px 20px;font-size:.88rem}
.btn--full{width:100%;justify-content:center}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;align-items:center;padding:130px 0 60px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);border:1px solid var(--line);padding:9px 18px;border-radius:999px;background:var(--panel)}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 0 rgba(74,222,128,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.13rem;max-width:56ch;margin-top:18px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 34px}
.hero-points{list-style:none;display:flex;flex-wrap:wrap;gap:10px 26px;padding:0;margin:0;font-size:.92rem;color:var(--muted)}
.hero-points li{display:flex;align-items:center;gap:8px}
.check{color:#4ade80;font-weight:800}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;backdrop-filter:blur(8px);transition:transform .25s,border-color .25s}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.4)}
.stat-num,.stat-card>.stat-suffix{font-family:var(--font-disp);font-size:2rem;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{display:block;font-size:.83rem;color:var(--muted);margin-top:6px}
.scroll-hint{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);width:26px;height:44px;border:2px solid var(--line);border-radius:14px;display:flex;justify-content:center;padding-top:8px}
.scroll-hint span{width:4px;height:9px;border-radius:2px;background:var(--accent-2);animation:drip 1.8s infinite}
@keyframes drip{0%{transform:translateY(0);opacity:1}80%{transform:translateY(14px);opacity:0}100%{opacity:0}}

/* ---------- partners marquee ---------- */
.partners{padding:38px 0;border-block:1px solid var(--line);background:rgba(8,18,38,.35)}
.partners-title{text-align:center;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:22px}
.marquee{overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;gap:54px;width:max-content;animation:scrollx 36s linear infinite}
.marquee-track span{font-family:var(--font-disp);font-weight:600;font-size:1.15rem;color:#b9cbe6;white-space:nowrap;opacity:.75}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* ---------- section headers / shared ---------- */
.kicker{font-size:.78rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--accent-2);margin-bottom:14px}
.kicker.center{text-align:center}
.section-head{max-width:680px;margin:0 auto 54px;text-align:center}
.section-sub{margin-top:6px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}

/* about */
.about-media{position:relative}
.img-frame{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.img-frame img{width:100%;height:auto;transition:transform .5s}
.img-frame:hover img{transform:scale(1.04)}
.tilt{transform:perspective(900px) rotateY(-4deg) rotateX(2deg)}
figcaption{position:absolute;inset:auto 0 0 0;padding:36px 18px 14px;font-size:.85rem;color:var(--text);background:linear-gradient(transparent,rgba(3,8,20,.92));display:flex;align-items:center;gap:8px}
.badge-dot{width:8px;height:8px;border-radius:50%;background:#4ade80;flex:none}
.exp-chip{position:absolute;top:-24px;right:-14px;background:linear-gradient(135deg,#0ea5e9,#06b6d4);color:#03121f;border-radius:16px;padding:14px 20px;max-width:210px;box-shadow:0 18px 40px -16px rgba(14,165,233,.6)}
.exp-chip strong{display:block;font-family:var(--font-disp);font-size:1.5rem}
.exp-chip span{font-size:.78rem;font-weight:600;line-height:1.4}
.tick-list{list-style:none;padding:0;margin:26px 0 0}
.tick-list li{position:relative;padding-left:34px;margin-bottom:14px;color:var(--text)}
.tick-list li::before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:rgba(74,222,128,.14);color:#4ade80;font-size:.8rem;font-weight:800;display:flex;align-items:center;justify-content:center}

/* vision & mission */
.vision-section{background:linear-gradient(180deg,transparent,rgba(8,18,38,.55),transparent)}
.vm-grid{align-items:stretch}
.vm-card{background:var(--panel);border:1px solid var(--line);border-radius:calc(var(--radius) + 6px);padding:40px 36px;backdrop-filter:blur(8px);transition:border-color .25s,transform .25s}
.vm-card:hover{border-color:rgba(56,189,248,.45);transform:translateY(-4px)}
.vm-icon{width:58px;height:58px;border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--accent-2);background:linear-gradient(135deg,rgba(56,189,248,.16),rgba(34,211,238,.08));border:1px solid rgba(56,189,248,.3);margin-bottom:20px}
.vm-icon svg{width:27px;height:27px}
.mission-list{list-style:none;padding:0;margin:0}
.mission-list li{position:relative;padding-left:26px;margin-bottom:11px;color:var(--muted)}
.mission-list li::before{content:"—";position:absolute;left:0;color:var(--accent)}

/* services accordion */
.svc-block{background:var(--panel);border:1px solid var(--line);border-radius:calc(var(--radius) + 4px);margin-bottom:18px;overflow:hidden;backdrop-filter:blur(8px);transition:border-color .25s}
.svc-block:target,.svc-block:hover{border-color:rgba(56,189,248,.4)}
.svc-headline{display:flex;align-items:center;gap:22px;padding:26px 30px;cursor:pointer}
.svc-index{flex:none;width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-family:var(--font-disp);font-weight:700;font-size:1.3rem;color:#03121f;background:var(--grad);box-shadow:0 12px 28px -10px rgba(14,165,233,.5)}
.svc-headline h3{margin-bottom:4px}
.svc-headline p{margin:0;font-size:.93rem}
.svc-headline>div{flex:1}
.svc-toggle{flex:none;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--panel-strong);cursor:pointer;position:relative;transition:transform .3s,background .2s}
.svc-toggle:hover{background:rgba(56,189,248,.18)}
.svc-toggle .chev,.svc-toggle::before{content:"";position:absolute;top:50%;left:50%;width:14px;height:2px;background:var(--text);border-radius:2px;transform:translate(-50%,-50%)}
.svc-toggle::before{transform:translate(-50%,-50%) rotate(90deg)}
.svc-toggle[aria-expanded="true"]{transform:rotate(45deg)}
.svc-body{max-height:0;overflow:hidden;transition:max-height .45s ease}
.svc-body.open{max-height:1400px}
.svc-items{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:6px 30px 30px}
.svc-item{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;transition:transform .25s,border-color .25s}
.svc-item:hover{transform:translateY(-3px);border-color:rgba(56,189,248,.4)}
.svc-item h4{font-family:var(--font-body);font-weight:700;font-size:1.02rem;margin-bottom:8px}
.svc-item p{font-size:.9rem;margin:0}
.svc-item.featured{grid-column:span 3;background:linear-gradient(120deg,rgba(14,165,233,.14),rgba(34,211,238,.05));border-color:rgba(56,189,248,.35)}
.chip-row{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:16px 0 0}
.chip-row li{font-size:.76rem;font-weight:600;padding:6px 13px;border-radius:999px;border:1px solid rgba(56,189,248,.35);color:#a5dcff;background:rgba(56,189,248,.08)}
.svc-cols{display:grid;grid-template-columns:1fr 1fr;gap:26px;padding:6px 30px 30px}
.svc-cols.three{grid-template-columns:repeat(3,1fr)}
.col-title{font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2);margin-bottom:14px}
.plain-list{list-style:none;padding:0;margin:0}
.plain-list li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--muted);font-size:.93rem}
.plain-list li::before{content:"▸";position:absolute;left:0;color:var(--accent)}
.wiring-strip{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:26px;padding:20px 28px;border:1px dashed rgba(56,189,248,.35);border-radius:var(--radius);background:rgba(56,189,248,.05)}
.ws-label{font-size:.8rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.wiring-strip .chip-row{margin:0}

/* why us */
.why-section{background:linear-gradient(180deg,transparent,rgba(8,18,38,.55),transparent)}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.why-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:transform .25s,border-color .25s,background .25s}
.why-card:hover{transform:translateY(-5px);border-color:rgba(56,189,248,.45);background:var(--panel-strong)}
.why-icon{font-size:1.7rem;margin-bottom:14px}
.why-card h3{font-size:1.08rem}
.why-card p{font-size:.92rem;margin:0}

/* projects gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.g-item{position:relative;margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);min-height:240px}
.g-wide{grid-column:span 2}
.g-item img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .5s}
.g-item:hover img{transform:scale(1.05)}
.g-item figcaption{position:absolute;inset:auto 0 0 0;padding:44px 20px 16px;background:linear-gradient(transparent,rgba(3,8,20,.94));display:flex;flex-direction:column;gap:2px}
.g-item strong{font-family:var(--font-disp);font-size:1rem}
.g-item span{font-size:.82rem;color:var(--muted)}

/* coverage */
.coverage-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:cov}
.cov-item{counter-increment:cov;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;position:relative;transition:transform .25s,border-color .25s}
.cov-item:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.45)}
.cov-num{font-family:var(--font-disp);font-size:.95rem;font-weight:700;color:var(--accent-2);letter-spacing:.1em;display:block;margin-bottom:12px}
.cov-item h3{font-size:1.05rem;margin-bottom:6px}
.cov-item p{font-size:.85rem;margin:0}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:start}
.contact-sub{max-width:46ch}
.contact-cards{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:14px}
.ccard{display:flex;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;transition:border-color .25s}
.ccard:hover{border-color:rgba(56,189,248,.4)}
.cicon{flex:none;width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;color:var(--accent-2);background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3)}
.cicon svg{width:21px;height:21px}
.ccard strong{display:block;font-family:var(--font-disp);font-size:.98rem;margin-bottom:3px}
.ccard span{color:var(--muted);font-size:.9rem}
.ccard a:hover{color:var(--accent)}
.quote-form{background:var(--panel-strong);border:1px solid var(--line);border-radius:calc(var(--radius) + 4px);padding:36px 32px;backdrop-filter:blur(10px);box-shadow:var(--shadow)}
.quote-form h3{font-size:1.3rem;margin-bottom:22px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.quote-form label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:14px}
.quote-form input,.quote-form select,.quote-form textarea{width:100%;margin-top:7px;background:rgba(5,11,24,.7);border:1px solid var(--line);color:var(--text);border-radius:12px;padding:13px 15px;font-family:inherit;font-size:.94rem;transition:border-color .2s,box-shadow .2s}
.quote-form input:focus,.quote-form select:focus,.quote-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.quote-form textarea{resize:vertical}
.form-note{font-size:.85rem;margin:14px 0 0;text-align:center}
.form-note a{color:var(--accent);font-weight:700}
.map-wrap{margin-top:56px;border-radius:calc(var(--radius) + 4px);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.map-wrap iframe{width:100%;height:380px;border:0;display:block;filter:grayscale(.25) contrast(1.05)}

/* footer */
.site-footer{border-top:1px solid var(--line);background:rgba(4,9,20,.85);backdrop-filter:blur(12px)}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.1fr;gap:44px;padding:64px 0 48px}
.f-brand p{font-size:.9rem;margin-top:16px;max-width:34ch}
.f-col h4{font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-2);margin-bottom:18px}
.f-col a,.f-col p{display:block;color:var(--muted);font-size:.92rem;margin-bottom:10px}
.f-col a:hover{color:var(--text)}
.footer-bottom{border-top:1px solid var(--line)}
.fb-inner{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:20px 0;font-size:.84rem;color:var(--muted)}
.fb-inner p{margin:0}
.fb-note{font-family:var(--font-disp);letter-spacing:.08em}

/* whatsapp float */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:70;width:58px;height:58px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 14px 34px -10px rgba(37,211,102,.65);transition:transform .25s}
.wa-float:hover{transform:scale(1.09)}

/* reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}
.delay-1{transition-delay:.12s}
.delay-2{transition-delay:.24s}
.delay-3{transition-delay:.36s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .marquee-track{animation:none}
  html{scroll-behavior:auto}
}

/* responsive */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-stats{grid-template-columns:repeat(4,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .coverage-list{grid-template-columns:repeat(2,1fr)}
  .svc-items{grid-template-columns:repeat(2,1fr)}
  .svc-cols.three{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .main-nav{position:fixed;inset:0;background:rgba(5,11,24,.97);backdrop-filter:blur(18px);flex-direction:column;justify-content:center;gap:30px;transform:translateX(100%);transition:transform .35s;z-index:60}
  .main-nav.open{transform:none}
  .main-nav>a{font-size:1.2rem}
  .nav-toggle{display:block}
  .contact-grid{grid-template-columns:1fr;gap:44px}
  .grid-2{grid-template-columns:1fr;gap:48px}
  .tilt{transform:none}
  .exp-chip{right:10px}
}
@media (max-width:640px){
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .svc-items{grid-template-columns:1fr}
  .svc-cols,.svc-cols.three{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .g-wide{grid-column:span 1}
  .coverage-list{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding:52px 0 40px}
  .svc-headline{flex-wrap:wrap;gap:14px;padding:22px 20px}
  .svc-items{padding:4px 20px 22px}
  .svc-cols{padding:4px 20px 22px}
  .quote-form{padding:28px 22px}
  .br-m{display:none}
}