/* Sequoian LLC — technology + water + future */
:root{
  --abyss:#020611;
  --navy:#041029;
  --tech:#0b2f7a;
  --cobalt:#2e6bff;
  --electric:#3d8bff;
  --cyan:#5fe3ff;
  --aqua:#9ff3ff;
  --ink:#f4f8ff;
  --ink-2:rgba(222,234,255,.76);
  --ink-3:rgba(196,214,250,.52);
  --line:rgba(150,195,255,.14);
  --bg:#020611;
  --display:"SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI Variable Display","Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --gutter:clamp(20px,5vw,80px);
  --ease:cubic-bezier(.16,1,.3,1);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:400 17px/1.6 var(--display);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
a{color:inherit}
::selection{background:rgba(95,227,255,.3);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:4px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:16px;top:-60px;z-index:100;padding:10px 16px;background:var(--ink);color:var(--abyss);border-radius:8px;text-decoration:none;font-weight:600}
.skip:focus{top:16px}
.wrap{max-width:1320px;margin:0 auto;position:relative}

/* ---------- Nav ---------- */
.nav{
  position:fixed;inset:0 0 auto;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:26px var(--gutter);
  border-bottom:1px solid transparent;
  transition:background .6s var(--ease),padding .6s var(--ease),border-color .6s;
  animation:fadeIn 1.2s .9s both;
}
.nav.scrolled{
  padding-top:14px;padding-bottom:14px;
  background:rgba(3,10,28,.5);
  -webkit-backdrop-filter:blur(20px) saturate(150%);backdrop-filter:blur(20px) saturate(150%);
  border-color:var(--line);
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.mark{width:28px;height:28px;flex:none}
.brand-name{font-size:13px;font-weight:600;letter-spacing:.34em}
.nav ul{display:flex;align-items:center;list-style:none;margin:0;padding:0}
.nav li+li::before{content:"·";color:var(--ink-3);margin:0 clamp(12px,2vw,22px)}
.nav ul a{
  font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;text-decoration:none;
  color:var(--ink-2);position:relative;padding:6px 0;transition:color .3s;
}
.nav ul a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  transform:scaleX(0);transition:transform .5s var(--ease);
}
.nav ul a:hover{color:#fff}
.nav ul a:hover::after{transform:scaleX(1)}

/* ---------- Hero ---------- */
.hero{
  position:relative;height:100vh;height:100svh;min-height:580px;
  display:grid;place-items:center;overflow:hidden;isolation:isolate;
  background:radial-gradient(120% 80% at 50% 0%,#0a2a6b 0%,#041029 45%,var(--abyss) 100%);
}
#water{position:absolute;inset:0;width:100%;height:100%;z-index:-2;display:block}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:35%;z-index:-1;
  background:linear-gradient(to bottom,transparent,var(--bg));
}
.hero-inner{text-align:center;padding:0 var(--gutter);will-change:transform,opacity}
.hero h1{margin:0;font-weight:600}
.title{
  display:block;
  font-size:clamp(3.1rem,13.5vw,12.5rem);line-height:.92;letter-spacing:.035em;
  margin-right:-.035em; /* optically center tracked text */
}
.title .ch{
  display:inline-block;
  background:linear-gradient(180deg,#ffffff 35%,#bfeaff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  opacity:0;transform:translateY(.28em) scale(.98);filter:blur(14px);
  animation:rise 1.6s var(--ease) forwards;
  animation-delay:calc(var(--i) * 70ms + 250ms);
}
.llc{
  display:flex;align-items:center;justify-content:center;gap:18px;
  margin-top:clamp(14px,2vw,24px);
  font:500 clamp(12px,1.3vw,15px)/1 var(--mono);letter-spacing:.6em;margin-right:-.6em;
  color:var(--aqua);
  opacity:0;animation:fadeUp 1.4s var(--ease) 1s forwards;
}
.llc i{display:block;width:clamp(32px,6vw,80px);height:1px;background:linear-gradient(90deg,transparent,rgba(159,243,255,.7))}
.llc i:last-child{transform:scaleX(-1);margin-left:-.6em}
.tagline{
  max-width:34ch;margin:clamp(28px,4vw,44px) auto 0;
  font-size:clamp(1.05rem,1.9vw,1.4rem);line-height:1.5;font-weight:400;color:var(--ink-2);
  opacity:0;animation:fadeUp 1.4s var(--ease) 1.25s forwards;
}
.scroll-cue{
  position:absolute;left:50%;bottom:clamp(24px,5vh,48px);transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:12px;text-decoration:none;
  font:500 10.5px/1 var(--mono);letter-spacing:.35em;text-transform:uppercase;color:var(--ink-3);
  opacity:0;animation:fadeIn 1.2s 1.9s forwards;
}
.scroll-cue b{position:relative;display:block;width:1px;height:48px;background:rgba(159,243,255,.18);overflow:hidden}
.scroll-cue b::after{
  content:"";position:absolute;left:0;top:-40%;width:1px;height:40%;
  background:linear-gradient(transparent,var(--aqua));
  animation:drip 2.4s var(--ease) infinite;
}

/* ---------- Shared section ---------- */
section{position:relative;padding:clamp(120px,20vh,240px) var(--gutter)}
.eyebrow{
  display:flex;align-items:center;gap:14px;margin:0 0 clamp(36px,5vw,64px);
  font:500 12px/1 var(--mono);letter-spacing:.3em;text-transform:uppercase;color:var(--ink-2);
}
.eyebrow span{color:var(--cyan)}
.eyebrow::after{content:"";flex:0 0 56px;height:1px;background:linear-gradient(90deg,rgba(95,227,255,.6),transparent)}
.eyebrow.center{justify-content:center}
.eyebrow.center::before{content:"";flex:0 0 56px;height:1px;background:linear-gradient(270deg,rgba(95,227,255,.6),transparent)}

[data-reveal]{opacity:0;transform:translateY(36px);transition:opacity 1.3s var(--ease),transform 1.3s var(--ease)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- About ---------- */
.about{min-height:100vh;display:flex;align-items:center;overflow:hidden}
.about .wrap{width:100%}
.statement{
  margin:0;max-width:22ch;
  font-size:clamp(2rem,5.2vw,4.9rem);line-height:1.1;letter-spacing:-.025em;font-weight:500;
}
.statement em{font-style:normal;color:var(--aqua)}
.statement .w{opacity:.16;transition:opacity .6s ease}
.statement .w.lit{opacity:1}
.flow{position:absolute;inset:-10% 0;width:100%;height:120%;pointer-events:none}
.flow path{fill:none;vector-effect:non-scaling-stroke}
.flow-base path{stroke:rgba(120,170,255,.09);stroke-width:1}
.flow-light path{
  stroke:url(#pulse);stroke-width:1.6;stroke-linecap:round;
  stroke-dasharray:90 910;stroke-dashoffset:1000;
  animation:flow 11s linear infinite;
}
.flow-light path:nth-child(2){animation-duration:14s;animation-delay:-4s}
.flow-light path:nth-child(3){animation-duration:17s;animation-delay:-9s}
.flow-light path:nth-child(4){animation-duration:13s;animation-delay:-2s}
.flow-light path:nth-child(5){animation-duration:19s;animation-delay:-12s}

/* ---------- OKEN ---------- */
.oken{min-height:100vh;overflow:hidden}
.oken-glow{
  position:absolute;right:-10%;top:18%;width:min(1100px,110vw);aspect-ratio:1;pointer-events:none;
  background:radial-gradient(closest-side,rgba(46,107,255,.34),rgba(46,107,255,.08) 55%,transparent 72%);
  filter:blur(10px);
}
.wordmark{
  margin:0;position:relative;z-index:1;
  font-size:clamp(6.5rem,25vw,22rem);line-height:.8;letter-spacing:-.045em;font-weight:700;
  background:linear-gradient(100deg,#ffffff 0%,#d9ecff 38%,#7fe9ff 50%,#d9ecff 62%,#ffffff 100%);
  background-size:260% 100%;background-position:100% 0;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:sheen 10s ease-in-out infinite;
}
.oken-grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(48px,7vw,120px);align-items:center;margin-top:clamp(40px,6vw,80px);
}
.oken-desc{margin:0;max-width:30ch;font-size:clamp(1.3rem,2.2vw,1.85rem);line-height:1.42;letter-spacing:-.01em;color:var(--ink)}
.meta{margin:clamp(40px,5vw,64px) 0 0;padding:0;border-top:1px solid var(--line);max-width:460px;transition-delay:.15s}
.meta div{display:flex;justify-content:space-between;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.meta dt{font:500 11px/1.6 var(--mono);letter-spacing:.26em;text-transform:uppercase;color:var(--ink-3)}
.meta dd{margin:0;text-align:right;font-size:15px;color:var(--ink-2)}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-right:10px;vertical-align:1px;box-shadow:0 0 0 0 rgba(95,227,255,.6);animation:pulse 2.6s infinite}

.stage{
  position:relative;display:grid;place-items:center;aspect-ratio:1;width:100%;max-width:640px;justify-self:center;
  perspective:1400px;transition-delay:.1s;
}
.orbit{position:absolute;border-radius:50%;border:1px solid rgba(150,200,255,.12);animation:spin 60s linear infinite}
.orbit::before{content:"";position:absolute;top:-3px;left:50%;width:6px;height:6px;margin-left:-3px;border-radius:50%;background:var(--aqua);box-shadow:0 0 14px 2px rgba(95,227,255,.7)}
.o1{inset:4%}
.o2{inset:16%;animation-duration:42s;animation-direction:reverse;border-color:rgba(150,200,255,.09)}
.o2::before{background:var(--electric);box-shadow:0 0 14px 2px rgba(61,139,255,.8)}
.o3{inset:-8%;animation-duration:90s;border-style:dashed;border-color:rgba(150,200,255,.07)}
.o3::before{display:none}
.device{
  position:relative;width:clamp(210px,24vw,310px);aspect-ratio:9/19.5;padding:9px;border-radius:clamp(36px,4vw,50px);
  background:linear-gradient(155deg,rgba(255,255,255,.2),rgba(255,255,255,.04) 40%,rgba(255,255,255,.08));
  border:1px solid rgba(190,225,255,.28);
  box-shadow:0 70px 120px -40px rgba(4,20,80,.95),0 0 80px -20px rgba(46,107,255,.45),inset 0 1px 0 rgba(255,255,255,.35);
  -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);
  transform-style:preserve-3d;transition:transform 1.2s var(--ease);
}
.device::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(115deg,rgba(255,255,255,.16) 0%,rgba(255,255,255,0) 32%);
}
.screen{position:relative;height:100%;border-radius:clamp(28px,3.3vw,42px);overflow:hidden;background:#030c26;isolation:isolate}
.island{position:absolute;top:12px;left:50%;width:30%;height:22px;margin-left:-15%;border-radius:20px;background:#01040d;z-index:3}
.blob{position:absolute;border-radius:50%;filter:blur(28px);opacity:.9;mix-blend-mode:screen;animation:drift 16s ease-in-out infinite alternate}
.b1{width:90%;height:45%;left:-20%;top:8%;background:radial-gradient(closest-side,#2e6bff,transparent)}
.b2{width:80%;height:40%;right:-25%;top:38%;background:radial-gradient(closest-side,#1bb6e8,transparent);animation-duration:19s;animation-delay:-6s}
.b3{width:70%;height:35%;left:10%;bottom:-6%;background:radial-gradient(closest-side,#0b3fb0,transparent);animation-duration:22s;animation-delay:-11s}
.ripples{position:absolute;inset:0;display:grid;place-items:center;z-index:1}
.ripples i{position:absolute;width:62%;aspect-ratio:1;border-radius:50%;border:1px solid rgba(159,243,255,.55);opacity:0;animation:ripple 6s var(--ease) infinite}
.ripples i:nth-child(2){animation-delay:2s}
.ripples i:nth-child(3){animation-delay:4s}
.screen-mark{position:absolute;inset:0;display:grid;place-items:center;z-index:2;font-size:clamp(15px,1.5vw,19px);font-weight:600;letter-spacing:.5em;margin-right:-.5em;color:rgba(255,255,255,.95);text-shadow:0 0 24px rgba(95,227,255,.6)}

/* ---------- Contact ---------- */
.contact{min-height:88vh;display:grid;place-items:center;text-align:center;overflow:hidden}
.contact .wrap{width:100%}
.connect{
  margin:0;font-size:clamp(3.2rem,11vw,9.5rem);line-height:.95;letter-spacing:-.04em;font-weight:600;
  background:linear-gradient(180deg,#ffffff 40%,#a9d8ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  padding-bottom:.08em;
}
.email{
  display:inline-block;position:relative;margin-top:clamp(32px,5vw,56px);
  font-size:clamp(1.15rem,2.8vw,2rem);letter-spacing:.01em;text-decoration:none;color:var(--ink);
  padding-bottom:10px;transition:color .4s,opacity 1.3s var(--ease),transform 1.3s var(--ease);
  word-break:break-word;
}
.email::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  transform-origin:center;transition:transform .7s var(--ease);
}
.email:hover{color:var(--aqua)}
.email:hover::after{transform:scaleX(1.25)}
.rings{position:absolute;left:50%;top:50%;width:0;height:0;pointer-events:none}
.rings i{
  position:absolute;left:0;top:0;width:min(1400px,180vw);aspect-ratio:1;border-radius:50%;
  border:1px solid rgba(120,180,255,.16);transform:translate(-50%,-50%) scale(.1);opacity:0;
  animation:ring 12s linear infinite;
}
.rings i:nth-child(2){animation-delay:3s}
.rings i:nth-child(3){animation-delay:6s}
.rings i:nth-child(4){animation-delay:9s}
.horizon{
  position:absolute;left:0;right:0;bottom:0;height:60%;pointer-events:none;
  background:radial-gradient(60% 70% at 50% 100%,rgba(46,107,255,.22),transparent 70%);
}

/* ---------- Footer ---------- */
.footer{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;
  padding:28px var(--gutter) calc(28px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);
  font-size:13px;letter-spacing:.02em;color:var(--ink-3);
}
.footer a{text-decoration:none;color:var(--ink-2);transition:color .3s}
.footer a:hover{color:var(--aqua)}

/* ---------- Privacy page ---------- */
.doc-page{background:radial-gradient(90% 50% at 50% 0%,#0a2360 0%,#041029 40%,var(--abyss) 80%) no-repeat,var(--abyss)}
.doc{max-width:760px;margin:0 auto;padding:clamp(140px,20vh,200px) var(--gutter) clamp(80px,12vh,140px)}
.doc h1{margin:0 0 12px;font-size:clamp(2.6rem,7vw,4.6rem);line-height:1;letter-spacing:-.035em;font-weight:600}
.doc .date{font:500 12px/1 var(--mono);letter-spacing:.24em;text-transform:uppercase;color:var(--cyan);margin:0 0 56px}
.doc h2{font-size:1.2rem;font-weight:600;margin:48px 0 10px;letter-spacing:-.005em}
.doc p{color:var(--ink-2);margin:0 0 14px}
.doc a{color:var(--aqua)}

/* ---------- Keyframes ---------- */
@keyframes rise{to{opacity:1;transform:none;filter:blur(0)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes drip{0%{top:-40%}100%{top:100%}}
@keyframes flow{to{stroke-dashoffset:0}}
@keyframes sheen{0%,100%{background-position:100% 0}50%{background-position:0 0}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes drift{0%{transform:translate(0,0) scale(1)}100%{transform:translate(12%,-10%) scale(1.15)}}
@keyframes ripple{0%{transform:scale(.25);opacity:0}15%{opacity:.8}100%{transform:scale(1.9);opacity:0}}
@keyframes ring{0%{transform:translate(-50%,-50%) scale(.05);opacity:0}15%{opacity:1}100%{transform:translate(-50%,-50%) scale(1);opacity:0}}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(95,227,255,.55)}70%,100%{box-shadow:0 0 0 10px rgba(95,227,255,0)}}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .oken-grid{grid-template-columns:1fr}
  .stage{max-width:480px;margin-top:20px}
  .statement{max-width:none}
}
@media (max-width:520px){
  .brand-name{display:none}
  .nav{padding-top:18px;padding-bottom:18px}
  .nav ul a{font-size:11.5px;letter-spacing:.16em}
  .meta div{flex-direction:column;gap:6px}
  .meta dd{text-align:left}
  .llc{letter-spacing:.45em;margin-right:-.45em}
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .title .ch,.llc,.tagline,.scroll-cue,.nav{opacity:1;transform:none;filter:none}
  [data-reveal]{opacity:1;transform:none}
  .statement .w{opacity:1}
  .ripples i{opacity:.35;transform:scale(1)}
  .ripples i:nth-child(2){transform:scale(1.35);opacity:.2}
  .ripples i:nth-child(3){transform:scale(.7);opacity:.5}
  .rings i{opacity:.6}
  .rings i:nth-child(1){transform:translate(-50%,-50%) scale(.25)}
  .rings i:nth-child(2){transform:translate(-50%,-50%) scale(.45)}
  .rings i:nth-child(3){transform:translate(-50%,-50%) scale(.7)}
  .rings i:nth-child(4){transform:translate(-50%,-50%) scale(1);opacity:.3}
}