/* ============================================================
   EFSATU — style.css  (desain editorial, responsif)
   ============================================================ */
:root{
  --ink:#08141B; --ink-2:#0C2530;
  --accent:#047AAC; --accent-bright:#1FA9E0; --accent-deep:#03638A;
  --paper:#F5F8FA; --paper-2:#FFFFFF;
  --text:#0E2230; --muted:#5A7481; --faint:#8CA4B0; --line:#D8E4EA;
  --sans:"Manrope",system-ui,-apple-system,Segoe UI,sans-serif;
  --serif:"Instrument Serif",Georgia,serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip}
body{font-family:var(--sans);color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased;overflow-x:clip}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.sec{position:relative;width:100%;overflow:hidden}
.wrap{max-width:1280px;margin:0 auto;padding:0 36px;position:relative;z-index:3}
.rail{position:absolute;left:20px;top:0;bottom:0;width:1px;background:var(--line);z-index:1}
.eyebrow{font-size:11.5px;font-weight:800;letter-spacing:2.6px;text-transform:uppercase;color:var(--accent)}
.idx{font-family:var(--serif);font-style:italic;color:var(--accent);line-height:1}

/* scroll progress bar */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:9999;pointer-events:none}
.scroll-progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-bright));transition:width .08s linear}

/* reveal on scroll */
.reveal,.rv{opacity:0;transform:translateY(44px);filter:blur(5px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1),filter .9s cubic-bezier(.16,1,.3,1);will-change:opacity,transform}
.reveal.is-in,.rv.is-in{opacity:1;transform:none;filter:none}
@media (prefers-reduced-motion:reduce){
  .reveal,.rv{opacity:1;transform:none;filter:none;transition:none}
  .scroll-progress{display:none}
}

/* ============ MASTHEAD ============ */
.mast{height:92px;display:flex;align-items:center;border-bottom:1px solid var(--line);background:var(--paper);position:relative;z-index:50}
.mast .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-weight:800;font-size:21px;letter-spacing:1px;color:var(--ink);display:flex;align-items:center;gap:9px}
.logo img{height:28px;width:auto}
.mnav{display:flex;gap:34px;font-size:13.5px;font-weight:600;color:var(--muted)}
.mnav a:hover{color:var(--ink)}
.mbtn{background:var(--accent);color:#fff;font-size:13px;font-weight:700;padding:11px 21px;border-radius:999px;white-space:nowrap}
.mbtn:hover{background:var(--accent-deep)}

/* ============ HERO ============ */
.hero{padding:120px 0 130px;background:var(--paper)}
.hero .big-idx{position:absolute;top:40px;left:40px;font-size:120px;opacity:.1;z-index:1;line-height:1}
.hero-main{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;position:relative;z-index:4;align-items:start}
.hero-copy{grid-column:1/span 8}
.hero-copy .eyebrow{margin-bottom:22px}
.h1{font-size:clamp(44px,7.4vw,118px);line-height:.94;font-weight:800;letter-spacing:-.035em;color:var(--ink)}
.h1 .s{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--accent)}
.hero-sub{margin-top:26px;font-size:16.5px;line-height:1.7;color:var(--muted);max-width:460px}
.hero-cta{margin-top:32px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.hero-cta .p{background:var(--accent);color:#fff;font-size:14.5px;font-weight:700;padding:15px 28px;border-radius:999px;transition:.2s}
.hero-cta .p:hover{background:var(--accent-deep)}
.hero-cta .g{font-size:14.5px;font-weight:700;color:var(--ink);border-bottom:2px solid var(--ink);padding-bottom:4px}
.hero-visual{grid-column:9/span 4;position:relative;margin-top:6px}
.fshot{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 40px 80px rgba(8,20,27,.18);transform:rotate(-3.5deg)}
.fshot .bar{display:flex;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line)}
.fshot .bar i{width:8px;height:8px;border-radius:50%;background:#dde6ea}
.fshot img{width:100%;height:290px;object-fit:cover}
.fshot .cap{padding:13px 16px;font-size:12px;font-weight:700;color:var(--muted);display:flex;justify-content:space-between}
.badge{position:absolute;top:-30px;right:-18px;width:92px;height:92px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;font-size:10.5px;font-weight:800;letter-spacing:1px;line-height:1.3;transform:rotate(8deg);box-shadow:0 18px 40px rgba(4,122,172,.35)}
.marquee{position:absolute;bottom:0;left:-40px;right:-40px;height:62px;background:var(--ink);color:var(--paper);transform:rotate(-1.6deg);display:flex;align-items:center;overflow:hidden;z-index:6}
.marquee .t{white-space:nowrap;font-size:13px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;animation:marq 30s linear infinite}
.marquee .t span{margin:0 20px}
.marquee .t b{color:var(--accent-bright);font-weight:800}
@keyframes marq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============ MANIFESTO ============ */
.manif{padding:120px 0;background:var(--paper)}
.manif-inner{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;align-items:start}
.manif-inner .q{grid-column:1/span 1;font-family:var(--serif);font-size:150px;line-height:.6;color:var(--accent)}
.manif-inner .big{grid-column:2/span 7}
.big-t{font-size:clamp(32px,4.6vw,66px);line-height:1.02;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.big-t .s{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--accent)}
.big-t .o{color:transparent;-webkit-text-stroke:1.5px var(--ink)}
.manif-inner .side{grid-column:10/span 3;padding-top:10px;border-left:1px solid var(--line);padding-left:26px}
.side p{font-size:14.5px;line-height:1.75;color:var(--muted)}

/* ============ PORTFOLIO ============ */
.port{padding:100px 0;background:var(--paper-2)}
.port-head{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;align-items:end;margin-bottom:54px}
.port-head .idx{grid-column:1;font-size:72px}
.port-head .tt{grid-column:2/span 6;font-size:clamp(34px,4.5vw,56px);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.port-head .dd{grid-column:9/span 4;font-size:14px;line-height:1.7;color:var(--muted)}
.collage{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:290px;gap:22px;grid-auto-flow:dense}
.c1{grid-column:1/span 7;grid-row:span 2;position:relative;border-radius:22px;overflow:hidden}
.c2{grid-column:8/span 5;grid-row:span 1;position:relative;border-radius:22px;overflow:hidden;transform:rotate(1.4deg)}
.c3{grid-column:8/span 5;grid-row:span 1;position:relative;border-radius:22px;overflow:hidden;transform:rotate(-1.2deg)}
.cf{grid-column:span 4;position:relative;border-radius:22px;overflow:hidden}
.collage img{width:100%;height:100%;object-fit:cover}
.collage .ov{position:absolute;inset:0;background:linear-gradient(to top,rgba(8,20,27,.92) 0%,rgba(8,20,27,.45) 42%,rgba(8,20,27,0) 72%);pointer-events:none}
.collage .webapp img{object-position:left top}
.collage .tag{position:absolute;top:16px;left:16px;font-size:10px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:#fff;background:rgba(8,20,27,.66);padding:6px 12px;border-radius:999px}
.collage .nm{position:absolute;left:18px;bottom:16px;color:#fff;font-size:22px;font-weight:800;letter-spacing:-.01em}
.collage .no{position:absolute;right:18px;bottom:16px;font-family:var(--serif);font-style:italic;color:#fff;font-size:30px}
.collage .link{position:absolute;inset:0;z-index:5}
.brand-strip{margin-top:56px;border-top:1px solid var(--line);padding-top:26px}
.bs-lbl{display:flex;justify-content:space-between;gap:16px;font-size:11px;font-weight:800;letter-spacing:1.8px;text-transform:uppercase;color:var(--faint);margin-bottom:20px}
.bs-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.bcard{overflow:hidden;border-radius:14px;border:1px solid var(--line);background:#fff;transition:.25s}
.bcard:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(8,20,27,.1)}
.bimg{height:132px;overflow:hidden}
.bimg img{width:100%;height:100%;object-fit:cover}
.bmeta{padding:11px 13px 13px}
.bmeta .bc{display:block;font-size:9.5px;font-weight:800;letter-spacing:1.1px;text-transform:uppercase;color:var(--accent)}
.bmeta .bt{display:block;font-size:13.5px;font-weight:800;margin-top:4px;color:var(--text)}

/* ============ SERVICES ============ */
.svc{padding:100px 0;background:var(--paper)}
.svc-head{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;align-items:end;margin-bottom:44px}
.svc-head .idx{grid-column:1;font-size:72px}
.svc-head .tt{grid-column:2/span 7;font-size:clamp(34px,4.5vw,56px);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.svc-head .dd{grid-column:10/span 3;font-size:14px;line-height:1.7;color:var(--muted)}
.svc-row{display:grid;grid-template-columns:90px 1fr 320px;gap:24px;align-items:center;padding:30px 0;border-top:1px solid var(--line);transition:.2s}
.svc-row:last-child{border-bottom:1px solid var(--line)}
.svc-row:hover{padding-left:12px}
.svc-row .n{font-family:var(--serif);font-style:italic;font-size:40px;color:var(--accent)}
.svc-row h3{font-size:clamp(22px,2.4vw,38px);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.svc-row p{font-size:14px;line-height:1.65;color:var(--muted)}
.svc-row .arr{justify-self:end;font-size:26px;color:var(--accent);opacity:0;transition:.2s}
.svc-row:hover .arr{opacity:1;transform:translateX(4px)}

/* ============ PROCESS ============ */
.proc{padding:100px 0;background:var(--ink);color:var(--paper)}
.proc .rail{background:rgba(255,255,255,.08)}
.proc-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:60px}
.proc-head .idx{font-size:72px;color:var(--accent-bright)}
.proc-head .tt{font-size:clamp(32px,4vw,52px);font-weight:800;letter-spacing:-.02em}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative}
.steps:before{content:"";position:absolute;top:8px;left:2%;right:2%;height:1px;background:rgba(255,255,255,.14)}
.step{position:relative}
.step .dot{width:16px;height:16px;border-radius:50%;background:var(--accent-bright);border:4px solid var(--ink);position:relative;margin-bottom:22px;z-index:2}
.step .n{font-family:var(--serif);font-style:italic;font-size:44px;color:var(--accent-bright)}
.step h4{font-size:19px;font-weight:800;margin-top:8px}
.step p{font-size:13.5px;color:#9DB6C3;line-height:1.65;margin-top:10px}

/* ============ ABOUT ============ */
.about{padding:100px 0;background:var(--paper-2)}
.about-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px}
.about-head .tt{font-size:clamp(32px,4vw,52px);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.about-head .tt .s{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--accent)}
.about-head .idx{font-size:72px}
.metrics{display:flex;gap:56px;margin-top:56px;flex-wrap:wrap}
.metrics .v{font-size:clamp(52px,6vw,88px);font-weight:800;letter-spacing:-.03em;color:var(--ink);line-height:1}
.metrics .v .s{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--accent)}
.metrics .l{font-size:13px;font-weight:700;color:var(--muted);margin-top:10px}
.clients{margin-top:56px;border-top:1px solid var(--line);padding-top:22px;overflow:hidden}
.clients .lbl{font-size:11px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--faint);margin-bottom:18px}
.logos{display:flex;gap:48px;align-items:center;white-space:nowrap;font-size:22px;font-weight:800;color:var(--faint);animation:marq 26s linear infinite}
.logos img{height:34px;width:auto;object-fit:contain;filter:grayscale(1);opacity:.6;transition:filter .3s,opacity .3s}
.logos img:hover{filter:none;opacity:1}
.logos span{display:flex;align-items:center;height:34px}
@keyframes marq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============ CTA / INQUIRY ============ */
.cta{padding:100px 0;background:var(--paper)}
.cta-inner{display:grid;grid-template-columns:repeat(12,1fr);gap:44px;align-items:start}
.cta-left{grid-column:1/span 5}
.cta-left .idx{font-size:72px}
.cta-left h2{font-size:clamp(30px,3.8vw,50px);font-weight:800;letter-spacing:-.02em;color:var(--ink);margin-top:12px;line-height:1.03}
.cta-left h2 .s{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--accent)}
.cta-left .sub{margin-top:16px;color:var(--muted);font-size:15px;line-height:1.7;max-width:420px}
.cta-contacts{margin-top:30px;display:flex;flex-direction:column;gap:13px}
.cta-contact{display:flex;align-items:center;gap:14px}
.cta-contact:hover .val{color:var(--accent)}
.cta-contact .lbl{font-size:10.5px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;color:var(--faint);min-width:86px}
.cta-contact .val{font-size:15.5px;font-weight:800;color:var(--ink);transition:.2s}
.cta-form{grid-column:7/span 6;background:#fff;border:1px solid var(--line);border-radius:22px;padding:32px;box-shadow:0 30px 60px rgba(8,20,27,.08)}
.field{margin-bottom:16px}
.field label{display:block;font-size:10.5px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:13px 14px;font-family:var(--sans);font-size:14px;color:var(--text);background:var(--paper-soft);outline:none;transition:border .2s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}
.field textarea{height:90px;resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-submit{width:100%;background:var(--accent);color:#fff;border:none;border-radius:999px;padding:15px;font-family:var(--sans);font-size:15px;font-weight:800;cursor:pointer;transition:.2s}
.form-submit:hover{background:var(--accent-deep)}
.form-note{font-size:11px;color:var(--faint);text-align:center;margin-top:12px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}

/* ============ FOOTER ============ */
.foot{padding:0 0 48px;background:var(--ink);color:var(--paper)}
.foot-inner{padding-top:56px;display:flex;flex-direction:column}
.foot-top{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:30px}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:24px;letter-spacing:1px;color:#fff}
.foot-brand .dot{width:13px;height:13px;border-radius:3px;background:var(--accent-bright)}
.foot-tag{font-size:14px;color:var(--faint);max-width:400px;text-align:right;line-height:1.6}
.foot-cols{display:grid;grid-template-columns:1fr 1fr 1fr;gap:40px;margin-top:34px}
.foot-cols h5{font-size:11px;font-weight:800;letter-spacing:1.8px;text-transform:uppercase;color:var(--faint);margin-bottom:14px}
.foot-cols a{display:block;color:var(--paper);font-size:14px;margin-bottom:10px;opacity:.85;transition:.2s}
.foot-cols a:hover{opacity:1;color:var(--accent-bright)}
.foot-bottom{margin-top:34px;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;font-size:12.5px;color:var(--faint)}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .hero-copy{grid-column:1/span 7}
  .hero-visual{grid-column:8/span 5}
  .manif-inner .side{grid-column:9/span 4}
  .port-head .dd,.svc-head .dd{grid-column:8/span 5}
}
@media (max-width:900px){
  .wrap{padding:0 22px}
  .rail{display:none}
  .mast{height:72px}
  .mnav{display:none}
  .hero{padding:96px 0 120px}
  .hero-main{grid-template-columns:1fr}
  .hero-copy{grid-column:auto}
  .hero-visual{grid-column:auto;max-width:440px;margin-top:44px}
  .hero .big-idx{display:none}
  .manif-inner{grid-template-columns:1fr}
  .manif-inner .q,.manif-inner .big,.manif-inner .side{grid-column:auto}
  .manif-inner .side{border-left:none;padding-left:0;padding-top:20px}
  .port-head,.svc-head{grid-template-columns:1fr}
  .port-head .idx,.port-head .tt,.port-head .dd,.svc-head .idx,.svc-head .tt,.svc-head .dd{grid-column:auto}
  .collage{grid-template-columns:repeat(2,1fr);grid-auto-rows:210px}
  .collage > div{grid-column:auto !important;grid-row:auto !important;transform:none}
  .collage .c1{grid-column:span 2 !important;grid-row:span 2 !important}
  .bs-grid{grid-template-columns:repeat(3,1fr)}
  .svc-row{grid-template-columns:56px 1fr;gap:16px}
  .svc-row .arr{display:none}
  .svc-row p{grid-column:2}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps:before{display:none}
  .cta-inner{grid-template-columns:1fr}
  .cta-left,.cta-form{grid-column:auto}
  .foot-top{flex-direction:column;align-items:flex-start}
  .foot-tag{text-align:left}
  .foot-cols{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  .collage{grid-template-columns:1fr;grid-auto-rows:220px}
  .collage .c1{grid-column:auto !important;grid-row:auto !important}
  .bs-grid{grid-template-columns:repeat(2,1fr)}
  .metrics{gap:32px}
  .steps{grid-template-columns:1fr}
  .row2{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr}
  .logos{font-size:18px;gap:32px}
}