/* ============ Catalyst Collective — Homepage Wireframe ============ */
:root{
  --navy:#061A2E; --navy-1:#08233A; --navy-2:#0C2C46; --line:#16415f;
  --teal:#1FC8A5; --green:#3DFF9D; --cyan:#2BB5FF; --white:#F4F7FA;
  --ink-1:#EAF2F8; --ink-2:#A9C2D4; --ink-3:#6E8AA0;
  --grad-primary:linear-gradient(120deg,#2BB5FF 0%,#1FC8A5 100%);
  --grad-premium:linear-gradient(120deg,#1FC8A5 0%,#3DFF9D 100%);
  --grad-text:linear-gradient(100deg,#2BB5FF 0%,#1FC8A5 45%,#3DFF9D 100%);
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--navy);color:var(--ink-1);
  font-family:"Sora",system-ui,sans-serif;font-weight:400;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
section{position:relative}

/* ---- type ---- */
.eyebrow{
  font-size:13px;font-weight:600;letter-spacing:.28em;text-transform:uppercase;
  color:var(--teal);display:inline-flex;align-items:center;gap:12px;margin:0 0 22px;
}
.eyebrow::before{content:"";width:28px;height:1.5px;background:var(--teal);display:inline-block}
h1,h2,h3{font-weight:600;letter-spacing:-.01em;line-height:1.05;margin:0}
h1{font-size:clamp(2.5rem,5.6vw,4.7rem);font-weight:700;letter-spacing:-.025em}
h2{font-size:clamp(2rem,3.6vw,3.1rem);letter-spacing:-.02em}
h3{font-size:1.32rem;font-weight:600}
.lead{font-size:clamp(1.05rem,1.5vw,1.32rem);color:var(--ink-2);line-height:1.65;max-width:60ch}
.grad{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--ink-2)}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 28px;border-radius:999px;
  font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,border-color .25s}
.btn .arr{transition:transform .3s var(--ease)}
.btn:hover .arr{transform:translateX(5px)}
.btn-primary{background:var(--grad-primary);color:#04121f;box-shadow:0 8px 30px -8px rgba(43,181,255,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px -10px rgba(31,200,165,.6)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--ink-1)}
.btn-ghost:hover{border-color:var(--teal);background:rgba(31,200,165,.08);transform:translateY(-2px)}

/* ---- flow line motif (brand graphic language) ---- */
.flow{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.5}
.flow path{fill:none;stroke-width:1.5;stroke-linecap:round}

/* ============ NAV ============ */
.nav{position:fixed;top:0;left:0;right:0;z-index:200;transition:background .4s,border-color .4s,backdrop-filter .4s;
  border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(6,26,46,.82);backdrop-filter:blur(16px);border-bottom-color:var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:16px 40px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:40px;height:40px;object-fit:contain}
.brand .brand-wm{width:auto;height:22px}
.brand .wm{font-weight:700;letter-spacing:.12em;font-size:15px;line-height:1}
.brand .wm small{display:block;font-weight:500;letter-spacing:.34em;font-size:8.5px;color:var(--teal);margin-top:3px}
.nav-links{display:flex;gap:30px;margin-left:auto;font-size:14px;font-weight:500;color:var(--ink-2)}
.nav-links a{position:relative;padding:4px 0;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--grad-primary);transition:width .3s var(--ease)}
.nav-links a:hover{color:var(--white)}
.nav-links a:hover::after{width:100%}
.nav-cta{padding:11px 22px;font-size:14px}

/* ============ HERO ============ */
.hero{min-height:100vh;display:flex;align-items:center;padding:140px 0 90px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg video{width:100%;height:100%;object-fit:cover;opacity:.75;mix-blend-mode:luminosity}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--navy) 8%,rgba(6,26,46,.96) 46%,rgba(6,26,46,.84) 80%,rgba(6,26,46,.62) 100%),
             linear-gradient(0deg,var(--navy) 4%,rgba(6,26,46,.86) 22%,transparent 64%)}
.hero .wrap{position:relative;z-index:2;margin-left:0}
.hero h1{max-width:16ch}
.hero .lead{margin:26px 0 38px;max-width:46ch}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-scroll{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:2;
  font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-3);display:flex;flex-direction:column;align-items:center;gap:10px}
.hero-scroll i{width:1px;height:38px;background:linear-gradient(var(--teal),transparent);animation:scrolldot 2s var(--ease) infinite}
@keyframes scrolldot{0%{transform:scaleY(.2);transform-origin:top;opacity:0}40%{opacity:1}100%{transform:scaleY(1);transform-origin:top;opacity:0}}

/* ============ generic section ============ */
.band{padding:120px 0}
.band-alt{background:linear-gradient(180deg,var(--navy) 0%,var(--navy-1) 50%,var(--navy) 100%)}
.sec-head{max-width:62ch}
.sec-head h2{margin-top:6px}
.sec-head .lead{margin-top:22px}

/* ---- WHY: capabilities ---- */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:60px}
.cap{padding:30px 26px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.018);
  transition:transform .35s var(--ease),border-color .35s,background .35s}
.cap:hover{transform:translateY(-6px);border-color:rgba(31,200,165,.5);background:rgba(31,200,165,.05)}
.cap .n{font-size:12px;font-weight:600;letter-spacing:.2em;color:var(--teal)}
.cap h3{margin:18px 0 10px;font-size:1.18rem}
.cap p{margin:0;font-size:.95rem;color:var(--ink-2);line-height:1.5}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;margin-top:30px}
.split .imgcard{aspect-ratio:4/3;border-radius:18px;overflow:hidden;border:1px solid var(--line);position:relative}
.split .imgcard img,.split .imgcard video{width:100%;height:100%;object-fit:cover;display:block}
.split .imgcard::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(31,200,165,.12),rgba(43,181,255,.05))}

/* ---- CONNECT full-bleed video bg ---- */
.connect-full{overflow:hidden}
.connect-vid-bg{position:absolute;inset:0;z-index:0}
.connect-vid-bg video{width:100%;height:100%;object-fit:cover;opacity:.22;mix-blend-mode:luminosity;display:block}
.connect-vid-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(to bottom, rgba(6,26,46,.75) 0%, rgba(6,26,46,.45) 50%, rgba(6,26,46,.80) 100%)}

/* ---- WHY full-bleed video bg ---- */
.why-full{overflow:hidden}
.why-vid-bg{position:absolute;inset:0;z-index:0}
.why-vid-bg video{width:100%;height:100%;object-fit:cover;opacity:.28;mix-blend-mode:luminosity;display:block}
.why-vid-bg::after{content:"";position:absolute;inset:0;
  background:
    linear-gradient(to bottom, rgba(6,26,46,.72) 0%, rgba(6,26,46,.18) 40%, rgba(6,26,46,.18) 60%, rgba(6,26,46,.82) 100%),
    linear-gradient(to right,  rgba(6,26,46,.55) 0%, transparent 60%)}
.why-full .wrap{position:relative;z-index:1}
.why-text{max-width:60ch;margin-top:40px}

/* ---- STACK full-bleed video bg ---- */
.stack-full{overflow:hidden}
.stack-vid-bg{position:absolute;inset:0;z-index:0}
.stack-vid-bg video{width:100%;height:100%;object-fit:cover;opacity:.5;mix-blend-mode:luminosity;display:block}
.stack-vid-bg::after{content:"";position:absolute;inset:0;
  background:
    linear-gradient(to bottom, rgba(6,26,46,.65) 0%, rgba(6,26,46,.3) 40%, rgba(6,26,46,.3) 60%, rgba(6,26,46,.75) 100%),
    linear-gradient(to right, rgba(6,26,46,.4) 0%, transparent 70%)}
.stack-full .wrap{position:relative;z-index:1}


.tabs{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;margin-top:56px;align-items:stretch}
.tablist{display:flex;flex-direction:column;gap:2px}
.tab{text-align:left;background:none;border:none;border-left:2px solid var(--line);
  padding:24px 26px;cursor:pointer;font-family:inherit;color:var(--ink-3);position:relative;transition:.3s var(--ease)}
.tab:hover{color:var(--ink-2);background:rgba(255,255,255,.02)}
.tab.active{border-left-color:transparent;color:var(--white);background:rgba(255,255,255,.03)}
.tab.active::before{content:"";position:absolute;left:-2px;top:0;bottom:0;width:2px;background:var(--grad-premium)}
.tab .th{display:flex;align-items:center;gap:14px;font-size:1.22rem;font-weight:600;letter-spacing:-.01em}
.tab .desc{margin:12px 0 0;font-size:.95rem;line-height:1.5;max-height:0;opacity:0;overflow:hidden;transition:.45s var(--ease)}
.tab.active .desc{max-height:120px;opacity:1;margin-top:14px}
.badge{font-size:10px;font-weight:700;letter-spacing:.14em;padding:5px 10px;border-radius:6px;white-space:nowrap}
.badge.live{color:#04121f;background:var(--green)}
.badge.dev{color:var(--cyan);background:rgba(43,181,255,.14);border:1px solid rgba(43,181,255,.4)}
.badge.pipe{color:var(--ink-2);background:rgba(255,255,255,.06);border:1px solid var(--line)}
.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:1px;box-shadow:0 0 0 0 rgba(61,255,157,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(61,255,157,.55)}70%{box-shadow:0 0 0 9px rgba(61,255,157,0)}100%{box-shadow:0 0 0 0 rgba(61,255,157,0)}}
.tabstage{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);min-height:460px}
.tabstage .pane{position:absolute;inset:0;opacity:0;transition:opacity .6s var(--ease);}
.tabstage .pane.active{opacity:1}
.tabstage .pane img,.tabstage .pane video{width:100%;height:100%;object-fit:cover;display:block}
.tabstage .pane::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,26,46,.92),rgba(6,26,46,.15) 55%)}
.tabstage .cap-label{position:absolute;left:28px;bottom:26px;right:28px;z-index:2}
.tabstage .cap-label .badge{margin-bottom:14px;display:inline-block}
.tabstage .cap-label h3{font-size:1.5rem}

/* ---- TECHNOLOGY: feature grid ---- */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:56px}
.feat{padding:34px 32px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.018);
  position:relative;overflow:hidden;transition:transform .35s var(--ease),border-color .35s}
.feat::before{content:"";position:absolute;inset:0;background:radial-gradient(420px 200px at 100% 0%,rgba(43,181,255,.14),transparent 70%);opacity:0;transition:opacity .4s}
.feat:hover{transform:translateY(-5px);border-color:rgba(43,181,255,.45)}
.feat:hover::before{opacity:1}
.feat .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:rgba(31,200,165,.1);border:1px solid rgba(31,200,165,.3);margin-bottom:20px}
.feat .ic svg{width:24px;height:24px;stroke:var(--teal);fill:none;stroke-width:1.7}
.feat h3{font-size:1.22rem;margin-bottom:10px}
.feat p{margin:0;color:var(--ink-2);font-size:.96rem;line-height:1.55}

/* ---- STACK: layers ---- */
.stack-vis{display:flex;flex-direction:column;gap:14px;margin-top:56px}
.layer{display:grid;grid-template-columns:64px 1fr;gap:26px;align-items:center;
  padding:28px 32px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.02);
  transition:transform .35s var(--ease),border-color .35s,background .35s}
.layer:hover{transform:translateX(8px);border-color:rgba(61,255,157,.4);background:rgba(61,255,157,.04)}
.layer .ln{font-size:2rem;font-weight:700;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.layer h3{font-size:1.3rem;margin-bottom:6px}
.layer p{margin:0;color:var(--ink-2);font-size:.98rem}

/* ---- STATS band ---- */
.stats{padding:130px 0;position:relative;overflow:hidden}
.stats-bg{position:absolute;inset:0;z-index:0}
.stats-bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.stats-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--navy),rgba(6,26,46,.7) 45%,var(--navy))}
.stats .wrap{position:relative;z-index:2}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:60px}
.stat .v{font-size:clamp(2.4rem,4vw,3.6rem);font-weight:700;letter-spacing:-.03em;line-height:1;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .k{margin-top:14px;color:var(--ink-2);font-size:.98rem;max-width:22ch}
.stat{border-top:1px solid var(--line);padding-top:24px}

/* ---- HOW WE WORK ---- */
.how-sticky .wrap{position:relative;z-index:1}
.how-driver{height:380vh}
.how-sticky{position:sticky;top:0;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:60px;position:relative}
.step{position:relative}
.step .sn{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:1.1rem;
  border:1px solid var(--line);background:var(--navy);color:var(--teal);position:relative;z-index:2;margin-bottom:24px;
  transition:border-color .4s ease,box-shadow .4s ease}
.step h3{font-size:1.32rem;margin-bottom:12px}
.step p{margin:0;color:var(--ink-2)}
.steps .track{position:absolute;top:27px;left:7%;right:7%;height:1.5px;background:rgba(255,255,255,.08);z-index:0}
.track-fill{position:absolute;left:0;top:0;height:100%;width:0;
  background:linear-gradient(90deg,var(--teal),var(--cyan),var(--green));
  transition:width .5s ease}
/* step scroll reveal */
.step-how{opacity:0;transform:translateY(28px) scale(.97);
  transition:opacity .7s var(--ease),transform .7s var(--ease)}
.step-how.visible{opacity:1;transform:none}
.step-how.visible .sn{
  border-color:var(--teal);
  box-shadow:0 0 0 4px rgba(31,200,165,.2),0 0 18px rgba(31,200,165,.4);
  animation:snpop .6s var(--ease) forwards}
@keyframes snpop{
  0%{transform:scale(.7);box-shadow:0 0 0 0 rgba(31,200,165,.7)}
  60%{transform:scale(1.12);box-shadow:0 0 0 16px rgba(31,200,165,.0)}
  100%{transform:scale(1)}}

/* ---- CONNECT ---- */
.connect{padding:130px 0;text-align:center;position:relative;overflow:hidden}
.connect .chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:42px auto 44px;max-width:760px}
.chip{padding:11px 20px;border:1px solid var(--line);border-radius:999px;font-size:.92rem;color:var(--ink-2);
  transition:.3s var(--ease);cursor:default}
.chip:hover{border-color:var(--teal);color:var(--white);background:rgba(31,200,165,.07)}
.connect h2{max-width:18ch;margin:0 auto}

/* ---- FOOTER ---- */
footer{border-top:1px solid var(--line);padding:48px 0 56px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.foot-in .tag{color:var(--ink-3);font-size:.9rem}
.foot-in .brand .wm{font-size:14px}

/* ============ reveal ============ */
/* Content is always visible (robust for print / PDF / screenshot / throttled previews).
   The intended scroll-reveal fade-up is specified in the dev notes for the build. */
.reveal{opacity:1;transform:none}

/* ============ responsive ============ */
@media(max-width:980px){
  .cap-grid,.feat-grid,.stat-grid{grid-template-columns:repeat(2,1fr)}
  .tabs,.split{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:1fr;gap:34px}.steps .track{display:none}
  .how-driver{height:auto}
  .how-sticky{position:static;min-height:auto;display:block}
  .step-how{opacity:1;transform:none}
  .nav-links{display:none}
}
@media(max-width:560px){
  .wrap,.nav-in{padding-left:22px;padding-right:22px}
  .cap-grid,.feat-grid,.stat-grid{grid-template-columns:1fr}
  .band,.stats,.connect{padding:80px 0}
  .hero-ctas{flex-direction:column;align-items:stretch}
}