/* ============================================================
   KREA · Design tokens
   ============================================================ */
:root{
  --ink:#0A0C12;          /* hero / dark */
  --ink-2:#0E121B;
  --paper:#F3F5F8;        /* light body */
  --card:#FFFFFF;
  --cobalt:#1B4FD8;
  --cobalt-2:#3D6BF2;
  --cobalt-ink:#0C2C7A;
  --text:#0A0C12;
  --muted:#5B6677;
  --line:#E3E7EE;
  --d-text:#ECEFF5;
  --d-muted:#9AA4B6;
  --d-line:rgba(255,255,255,.10);
  --r:18px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --pad:clamp(22px,5vw,88px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--paper);color:var(--text);
  line-height:1.5;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--cobalt);color:#fff}
a{color:inherit;text-decoration:none}
.mono{font-family:'Space Mono',monospace}
.disp{font-family:'Space Grotesk',sans-serif}

/* eyebrow tag — the "layer label" signature */
.ey{
  font-family:'Space Mono',monospace;font-size:11px;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;color:var(--cobalt);
  display:inline-flex;align-items:center;gap:9px;
}
.ey::before{content:"";width:22px;height:2px;background:var(--cobalt);border-radius:2px}
.ey.light{color:var(--cobalt-2)}
.ey.light::before{background:var(--cobalt-2)}

/* ============================================================
   NAV
   ============================================================ */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;gap:18px;
  padding:14px var(--pad);
  background:rgba(10,12,18,.55);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease),padding .4s var(--ease);
}
nav.scrolled{background:rgba(10,12,18,.82);border-bottom-color:var(--d-line)}
.nav-back{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--d-muted);font-weight:500;
  transition:color .25s
}
.nav-back:hover{color:var(--d-text)}
.nav-back svg{width:13px;height:13px}
.brand{
  font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:19px;
  letter-spacing:.16em;color:#fff;margin-right:auto;
}
.brand b{color:var(--cobalt-2)}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{font-size:13.5px;color:var(--d-muted);font-weight:450;transition:color .25s}
.nav-links a:hover{color:var(--d-text)}
.nav-cta{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--cobalt);color:#fff;font-size:13px;font-weight:600;
  padding:9px 17px;border-radius:100px;
  transition:transform .25s var(--ease),background .25s;
}
.nav-cta:hover{background:var(--cobalt-2);transform:translateY(-1px)}
.nav-cta svg{width:14px;height:14px}
@media(max-width:760px){.nav-links{display:none}.brand{font-size:17px}}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100svh;
  background:radial-gradient(120% 90% at 50% 8%,#141a28 0%,var(--ink) 55%,#070910 100%);
  color:var(--d-text);
  display:flex;flex-direction:column;align-items:center;
  text-align:center;overflow:hidden;
  padding:128px var(--pad) 0;
}
.hero-glow{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(50% 40% at 50% 62%,rgba(27,79,216,.30),transparent 70%);}
.hero-grid{position:absolute;inset:0;opacity:.4;pointer-events:none;
  background-image:linear-gradient(var(--d-line) 1px,transparent 1px),linear-gradient(90deg,var(--d-line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 60% at 50% 45%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 45%,#000 30%,transparent 78%);}
.hero-top{position:relative;z-index:3;max-width:920px}
.hero h1{
  font-family:'Space Grotesk',sans-serif;font-weight:700;
  font-size:clamp(44px,9.2vw,118px);line-height:.95;
  letter-spacing:-.03em;margin:22px 0 0;
}
.hero h1 .accent{
  background:linear-gradient(180deg,#7FA0FF,var(--cobalt-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:clamp(15px,2vw,19px);color:var(--d-muted);
  max-width:560px;margin:26px auto 0;font-weight:450;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-size:15px;font-weight:600;padding:14px 26px;border-radius:100px;
  cursor:pointer;border:none;transition:transform .25s var(--ease),background .25s,box-shadow .25s;
}
.btn-primary{background:var(--cobalt);color:#fff;box-shadow:0 8px 30px -8px rgba(27,79,216,.6)}
.btn-primary:hover{background:var(--cobalt-2);transform:translateY(-2px);box-shadow:0 14px 40px -8px rgba(61,107,242,.7)}
.btn-primary svg{width:17px;height:17px}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--d-text);border:1px solid var(--d-line)}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* 3D stage */
.stage{position:relative;z-index:2;width:100%;max-width:760px;height:min(54vh,520px);margin-top:-6px}
#k3d{width:100%;height:100%;display:block}
.stage-fallback{position:absolute;inset:0;display:none;align-items:center;justify-content:center}
.stage-caption{
  position:absolute;left:50%;bottom:14px;transform:translateX(-50%);
  font-family:'Space Mono',monospace;font-size:10.5px;letter-spacing:.18em;
  color:var(--d-muted);text-transform:uppercase;display:flex;gap:14px;z-index:4;
  opacity:0;transition:opacity 1s 1.2s var(--ease)
}
.stage-caption.in{opacity:1}
.stage-caption b{color:var(--cobalt-2);font-weight:700}

.scroll-hint{
  position:absolute;left:50%;bottom:22px;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:7px;z-index:4;
  font-family:'Space Mono',monospace;font-size:9.5px;letter-spacing:.25em;
  color:var(--d-muted);text-transform:uppercase;opacity:0;transition:opacity 1s 1.6s
}
.scroll-hint.in{opacity:.8}
.scroll-line{width:1px;height:34px;background:linear-gradient(var(--cobalt-2),transparent);position:relative;overflow:hidden}
.scroll-line::after{content:"";position:absolute;top:-34px;left:0;width:1px;height:34px;background:#fff;animation:drop 2.4s var(--ease) infinite}
@keyframes drop{0%{top:-34px}60%,100%{top:34px}}

/* hero load animation targets */
.hero-top .ey,.hero h1 .ln,.hero-sub,.hero-actions{opacity:0;transform:translateY(22px)}
.hero h1 .ln{display:inline-block}

/* ============================================================
   STATS BAND
   ============================================================ */
.stats{
  background:var(--ink-2);color:var(--d-text);
  padding:64px var(--pad);
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  border-bottom:1px solid var(--d-line)
}
.stat{text-align:center}
.stat .n{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:clamp(38px,6vw,68px);letter-spacing:-.03em;line-height:1}
.stat .n span{color:var(--cobalt-2)}
.stat .l{font-family:'Space Mono',monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--d-muted);margin-top:12px}
@media(max-width:680px){.stats{grid-template-columns:1fr;gap:40px;padding:48px var(--pad)}}

/* ============================================================
   SECTION SCAFFOLD
   ============================================================ */
.section{padding:clamp(72px,11vh,140px) var(--pad)}
.s-head{max-width:760px;margin-bottom:54px}
.s-head h2{
  font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:clamp(30px,5.4vw,60px);line-height:1.02;letter-spacing:-.025em;margin-top:18px;
}
.s-head p{color:var(--muted);font-size:clamp(15px,1.8vw,18px);max-width:540px;margin-top:18px}

/* reveal */
.rv{opacity:0;transform:translateY(30px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.rv.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}

/* ============================================================
   SERVICES — editorial big blocks
   ============================================================ */
.svc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.svc{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:30px;position:relative;overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
  display:flex;flex-direction:column;
}
.svc:hover{transform:translateY(-4px);box-shadow:0 26px 50px -28px rgba(10,12,18,.28);border-color:#cfd7e6}
.svc-feature{grid-column:span 4;min-height:360px;
  background:linear-gradient(160deg,#0E1626,#0A0C12);color:var(--d-text);border-color:#1d2740}
.svc-feature:hover{border-color:#2a3a60}
.svc-tall{grid-column:span 2;grid-row:span 2;justify-content:space-between}
.svc-half{grid-column:span 2}
@media(max-width:900px){.svc-grid{grid-template-columns:repeat(2,1fr)}
  .svc-feature,.svc-tall,.svc-half{grid-column:span 2;grid-row:auto}.svc-feature{min-height:280px}}
@media(max-width:540px){.svc-grid{grid-template-columns:1fr}.svc-feature,.svc-tall,.svc-half{grid-column:span 1}}

.svc-num{font-family:'Space Mono',monospace;font-size:12px;letter-spacing:.1em;color:var(--cobalt);font-weight:700}
.svc-feature .svc-num{color:var(--cobalt-2)}
.svc-ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:rgba(27,79,216,.09);color:var(--cobalt);margin-bottom:auto}
.svc-feature .svc-ic{background:rgba(61,107,242,.16);color:#9fb6ff}
.svc-ic svg{width:21px;height:21px}
.svc-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:34px}
.svc h3{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:22px;letter-spacing:-.01em;margin:auto 0 10px}
.svc-feature h3{font-size:clamp(26px,3.4vw,38px);max-width:11ch}
.svc p{font-size:14px;color:var(--muted);line-height:1.55}
.svc-feature p{color:var(--d-muted);font-size:15px;max-width:44ch}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:18px}
.svc-tags span{font-family:'Space Mono',monospace;font-size:10px;letter-spacing:.05em;
  padding:4px 9px;border-radius:6px;background:var(--paper);color:var(--muted);border:1px solid var(--line)}
.svc-feature .svc-tags span{background:rgba(255,255,255,.05);color:var(--d-muted);border-color:var(--d-line)}
/* printed layers deco inside feature */
.svc-layers{position:absolute;right:-40px;bottom:-40px;width:220px;height:220px;opacity:.5;pointer-events:none}

.svc-cta{background:var(--cobalt);color:#fff;border-color:var(--cobalt);cursor:pointer;
  align-items:flex-start;justify-content:center}
.svc-cta:hover{background:var(--cobalt-2);border-color:var(--cobalt-2)}
.svc-cta h3{color:#fff}
.svc-cta .go{font-family:'Space Mono',monospace;font-size:12px;letter-spacing:.06em;margin-top:14px;color:#cdd9ff}

/* ============================================================
   MATERIALS — interactive
   ============================================================ */
.materials{background:var(--ink);color:var(--d-text)}
.mat-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
@media(max-width:880px){.mat-wrap{grid-template-columns:1fr;gap:36px}}
.mat-list{display:flex;flex-direction:column;border-top:1px solid var(--d-line)}
.mat-row{
  display:flex;align-items:center;gap:18px;padding:22px 8px;
  border-bottom:1px solid var(--d-line);cursor:pointer;
  transition:padding-left .35s var(--ease),background .35s
}
.mat-row:hover,.mat-row.active{padding-left:20px;background:rgba(255,255,255,.02)}
.mat-dot{width:14px;height:14px;border-radius:50%;flex-shrink:0;box-shadow:0 0 0 4px rgba(255,255,255,.04)}
.mat-name{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:20px;flex:1}
.mat-use{font-family:'Space Mono',monospace;font-size:11px;letter-spacing:.08em;color:var(--d-muted);text-align:right}
.mat-row.active .mat-arrow{transform:translateX(4px);opacity:1}
.mat-arrow{opacity:.4;transition:transform .35s,opacity .35s}
.mat-arrow svg{width:18px;height:18px}
.mat-detail{
  background:linear-gradient(160deg,#10182a,#0A0C12);
  border:1px solid var(--d-line);border-radius:24px;padding:38px;min-height:320px;
  display:flex;flex-direction:column;justify-content:space-between
}
.mat-detail .swatch{width:64px;height:64px;border-radius:16px;margin-bottom:24px;transition:background .4s}
.mat-detail h3{font-family:'Space Grotesk',sans-serif;font-size:34px;font-weight:600;transition:opacity .3s}
.mat-detail .for{font-family:'Space Mono',monospace;font-size:12px;letter-spacing:.1em;color:var(--cobalt-2);margin-top:8px;text-transform:uppercase}
.mat-detail .props{display:flex;flex-direction:column;gap:10px;margin-top:26px}
.mat-detail .props div{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--d-muted)}
.mat-detail .props div::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--cobalt-2)}

/* ============================================================
   PROCESS — real sequence
   ============================================================ */
.proc{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;counter-reset:step;position:relative}
@media(max-width:860px){.proc{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.proc{grid-template-columns:1fr}}
.step{padding:30px 24px 30px 0;border-top:2px solid var(--line);position:relative}
.step::before{content:"";position:absolute;top:-2px;left:0;height:2px;width:0;background:var(--cobalt);transition:width 1.1s var(--ease)}
.step.in::before{width:64px}
.step .sn{font-family:'Space Mono',monospace;font-weight:700;font-size:13px;color:var(--cobalt);letter-spacing:.1em}
.step h3{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:19px;margin:22px 0 10px}
.step p{font-size:13.5px;color:var(--muted);line-height:1.55}

/* ============================================================
   FINAL CTA
   ============================================================ */
.final{
  position:relative;overflow:hidden;text-align:center;
  background:radial-gradient(120% 100% at 50% 0%,#15203a,var(--ink) 60%,#06080f);
  color:var(--d-text);padding:clamp(80px,14vh,160px) var(--pad)
}
.final-grid{position:absolute;inset:0;opacity:.35;pointer-events:none;
  background-image:linear-gradient(var(--d-line) 1px,transparent 1px),linear-gradient(90deg,var(--d-line) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(60% 70% at 50% 30%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(60% 70% at 50% 30%,#000,transparent 75%)}
.final h2{position:relative;font-family:'Space Grotesk',sans-serif;font-weight:700;
  font-size:clamp(34px,7vw,86px);line-height:.98;letter-spacing:-.03em;margin:20px 0}
.final p{position:relative;color:var(--d-muted);font-size:clamp(15px,2vw,18px);max-width:480px;margin:0 auto 36px}
.final .btn{position:relative}

/* ============================================================
   FOOTER
   ============================================================ */
footer{background:var(--ink);color:var(--d-muted);padding:54px var(--pad);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:22px;
  border-top:1px solid var(--d-line)}
.f-logo{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:24px;letter-spacing:.14em;color:#fff}
.f-logo span{color:var(--cobalt-2)}
.f-copy{font-size:12.5px;font-family:'Space Mono',monospace;letter-spacing:.04em}
.f-links{display:flex;gap:24px}
.f-links a{font-size:13px;transition:color .25s}
.f-links a:hover{color:var(--d-text)}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.001ms!important}
  .rv,.hero-top .ey,.hero h1 .ln,.hero-sub,.hero-actions{opacity:1!important;transform:none!important}
}