:root{
  --bg:#0b0b0d; --bg2:#121216; --card:#16161b; --line:#26262d;
  --text:#f2efe9; --mute:#9a978f; --accent:#ff5a2c; --accent2:#ffd166;
  --serif:'Fraunces',Georgia,serif; --sans:'Inter',system-ui,sans-serif; --mono:'JetBrains Mono',monospace;
  --r:22px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{width:min(1200px,100% - 48px);margin-inline:auto}
section{padding:120px 0;position:relative}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:10px;margin-bottom:22px}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--accent)}
h2{font-family:var(--serif);font-weight:400;font-size:clamp(2.2rem,5vw,4rem);line-height:1.05;letter-spacing:-.02em;max-width:18ch}
h2 em,h1 em{font-style:italic;color:var(--accent)}
.lead{color:var(--mute);max-width:56ch;margin-top:20px;font-size:1.05rem}

/* NAV */
nav{position:fixed;inset:0 0 auto 0;z-index:50;padding:16px 0;backdrop-filter:blur(14px);background:rgba(11,11,13,.6);border-bottom:1px solid rgba(255,255,255,.05)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-family:var(--serif);font-size:1.5rem;font-weight:600}
.logo span{color:var(--accent)}
.links{display:flex;gap:28px;font-size:.92rem;color:var(--mute)}
.links a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;background:var(--accent);color:#0b0b0d;font-weight:600;font-size:.92rem;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -8px var(--accent)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--text);box-shadow:none}
@media(max-width:820px){.links{display:none}}

/* PROJECT GRID (card styles reused for pills/related cards) */
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:0;overflow:hidden;display:flex;flex-direction:column;transition:transform .3s,border-color .3s}
.card:hover{transform:translateY(-6px);border-color:var(--c,var(--accent))}
.cover{height:170px;position:relative;display:grid;place-items:center;overflow:hidden;background:linear-gradient(135deg,var(--c1),var(--c2))}
.cover::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 0,rgba(255,255,255,.25),transparent 55%)}
.cover b{font-family:var(--serif);font-weight:500;font-size:2.4rem;color:rgba(255,255,255,.92);letter-spacing:-.02em;z-index:1;text-align:center;padding:0 14px;line-height:1.05}
.cover .arrow{position:absolute;top:14px;right:14px;z-index:2;width:38px;height:38px;border-radius:50%;background:rgba(0,0,0,.35);display:grid;place-items:center;transition:transform .3s,background .3s}
.card:hover .arrow{transform:rotate(45deg);background:#fff;color:#000}
.body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mute)}
.card h3{font-family:var(--serif);font-size:1.55rem;font-weight:500;line-height:1.15}
.card p{color:var(--mute);font-size:.93rem}
.pills{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;padding-top:10px}
.pills span{font-size:.72rem;padding:4px 11px;border-radius:999px;border:1px solid var(--line);color:var(--mute)}
@media(max-width:680px){.cards{grid-template-columns:1fr}}

.rv{opacity:0;transform:translateY(30px);transition:opacity .8s,transform .8s}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}html{scroll-behavior:auto}}

/* ===== Branching light threads theme (shared across the whole site) ===== */
@property --ang{syntax:'<angle>';initial-value:0deg;inherits:false}
:root{--bg:#050B14;--bg2:#0A1422;--card:#0A1422;--line:rgba(127,233,255,.12);--text:#E8F1FA;--mute:#8FA3B8;
  --accent:#7FE9FF;--accent2:#9B6BFF;--core:#E6FDFF;--blue:#3A7BFF;--violet:#9B6BFF;--magenta:#FF5FD2;
  --hbg:#050B14;--htext:#E8F1FA;--hstroke:rgba(127,233,255,.5);--hacc:#7FE9FF}
body{background:#050B14}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(ellipse 70% 50% at 15% 0%,rgba(58,123,255,.09),transparent 60%),radial-gradient(ellipse 60% 50% at 90% 100%,rgba(155,107,255,.07),transparent 60%)}
h2,.cform h3{text-shadow:0 0 24px rgba(127,233,255,.25)}
h2 em,h1 em{text-shadow:0 0 28px rgba(127,233,255,.45)}

.btn,.btn.ghost{position:relative;overflow:hidden;background:transparent;color:var(--text);border:1px solid rgba(127,233,255,.7);box-shadow:inset 0 0 14px rgba(127,233,255,.16);transition:border-color .25s,box-shadow .25s,transform .2s}
.btn.ghost{border-color:rgba(127,233,255,.3)}
.btn:hover,.btn.ghost:hover{border-color:#E6FDFF;box-shadow:0 0 22px rgba(127,233,255,.35),inset 0 0 18px rgba(127,233,255,.25)}
.btn::after{content:"";position:absolute;top:0;left:-40px;width:36px;height:2px;background:linear-gradient(90deg,transparent,#E6FDFF);opacity:0;pointer-events:none}
.btn:hover::after{opacity:1;animation:run .9s linear infinite}
@keyframes run{to{left:100%}}
nav:not(.solid) .btn{border:0;border-bottom:1.5px solid currentColor;box-shadow:none;overflow:visible}
nav:not(.solid) .btn::after{display:none}

.card{background:rgba(10,20,34,.55);border-color:var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.card::before{content:"";position:absolute;inset:0;z-index:3;border-radius:inherit;padding:1px;pointer-events:none;opacity:0;transition:opacity .3s;
  background:conic-gradient(from var(--ang),transparent 0 62%,rgba(127,233,255,.9) 84%,#E6FDFF 92%,transparent 100%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0);mask-composite:exclude;animation:angspin 2.4s linear infinite}
.card:hover::before{opacity:1}
@keyframes angspin{to{--ang:360deg}}

/* section dividers: a thin thread drawn left to right */
.divider{position:absolute;top:0;left:0;right:0;height:1px;z-index:1;pointer-events:none;background:linear-gradient(90deg,transparent,#7FE9FF 30%,#9B6BFF 70%,transparent);box-shadow:0 0 12px rgba(127,233,255,.6);transform:scaleX(0);transform-origin:left;transition:transform 1.4s cubic-bezier(.2,.7,.2,1)}
.divider.on{transform:scaleX(1)}
#fx{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:60}

footer{padding:30px 0;border-top:1px solid var(--line);color:var(--mute);font-size:.85rem}
footer .wrap{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* =========================================================
   CASE STUDY PAGE
   ========================================================= */

/* breadcrumb */
.cs-crumb{position:relative;padding:150px 0 0;font-family:var(--mono);font-size:.78rem;color:var(--mute);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.cs-crumb a{color:var(--accent);transition:opacity .2s}
.cs-crumb a:hover{opacity:.75}

/* header */
.cs-head{padding:34px 0 64px;position:relative}
.cs-kicker{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.cs-kicker span{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:6px 14px;border:1px solid var(--line);border-radius:999px;color:var(--mute)}
.cs-kicker span.status{color:var(--core);border-color:rgba(127,233,255,.5);box-shadow:0 0 14px rgba(127,233,255,.18)}
.cs-title{font-family:var(--serif);font-weight:400;font-size:clamp(2.6rem,6vw,4.6rem);line-height:1.02;letter-spacing:-.02em;max-width:20ch;text-shadow:0 0 28px rgba(127,233,255,.3)}
.cs-title em{font-style:italic;color:var(--accent)}
.cs-dek{color:var(--mute);max-width:62ch;margin-top:22px;font-size:1.1rem;line-height:1.65}
.cs-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:48px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.cs-meta div{background:rgba(10,20,34,.55);backdrop-filter:blur(12px);padding:20px 22px}
.cs-meta span{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);margin-bottom:8px}
.cs-meta b{font-family:var(--serif);font-size:1.15rem;font-weight:500;line-height:1.25}
.cs-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
@media(max-width:900px){.cs-meta{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cs-meta{grid-template-columns:1fr}}

/* cover */
.cs-cover{height:38vh;min-height:260px;max-height:420px;position:relative;border-radius:var(--r);overflow:hidden;margin-top:48px;border:1px solid var(--line)}
.cs-cover::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 10%,rgba(255,255,255,.18),transparent 55%)}
.cs-cover b{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--serif);font-weight:500;font-size:clamp(2rem,5vw,3.6rem);color:rgba(255,255,255,.95);text-align:center;padding:0 20px;line-height:1.1}

/* body layout: sidebar (stats/stack) + prose */
.cs-layout{display:grid;grid-template-columns:1fr 300px;gap:70px;align-items:start;padding-top:70px}
.cs-layout.rev{grid-template-columns:300px 1fr}
.cs-body h2{font-size:clamp(1.7rem,3vw,2.3rem);max-width:none;margin-bottom:18px;margin-top:52px}
.cs-body h2:first-child{margin-top:0}
.cs-body p{color:var(--mute);font-size:1.02rem;line-height:1.8;margin-bottom:18px;max-width:68ch}
.cs-body ul{list-style:none;display:grid;gap:12px;margin:18px 0 26px;max-width:68ch}
.cs-body li{position:relative;padding-left:24px;color:var(--mute);font-size:1rem;line-height:1.7}
.cs-body li::before{content:"";position:absolute;left:0;top:.75em;width:12px;height:1px;background:var(--accent)}
.cs-body li b,.cs-body p b{color:var(--text);font-weight:600}
.cs-body li b.num,.cs-body p b.num{color:var(--core);text-shadow:0 0 16px rgba(127,233,255,.3)}
.cs-pull{border-left:2px solid var(--accent);padding:4px 0 4px 24px;margin:34px 0;font-family:var(--serif);font-size:1.3rem;font-style:italic;color:var(--text);max-width:60ch;line-height:1.5}

.cs-side{position:sticky;top:110px;display:grid;gap:20px}
.cs-box{background:rgba(10,20,34,.55);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.cs-box h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.cs-box ul{list-style:none;display:grid;gap:9px}
.cs-box li{font-size:.9rem;color:var(--mute);display:flex;justify-content:space-between;gap:10px}
.cs-box li span:last-child{color:var(--text)}
.cs-stack{display:flex;flex-wrap:wrap;gap:8px}
.cs-stack span{font-size:.76rem;padding:5px 12px;border-radius:999px;border:1px solid var(--line);color:var(--mute)}
@media(max-width:980px){.cs-layout,.cs-layout.rev{grid-template-columns:1fr}.cs-side{position:static}}

/* outcome stat row */
.cs-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin:40px 0}
.cs-stats div{background:rgba(10,20,34,.55);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:18px;padding:22px}
.cs-stats b{font-family:var(--serif);font-size:2.4rem;font-weight:400;display:block;color:var(--core);text-shadow:0 0 20px rgba(127,233,255,.3)}
.cs-stats span{color:var(--mute);font-size:.85rem;display:block;margin-top:6px}

/* prev/next */
.cs-nav2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:90px;padding-top:40px;border-top:1px solid var(--line)}
.cs-nav2 a{display:block;padding:24px;border:1px solid var(--line);border-radius:var(--r);background:rgba(10,20,34,.55);backdrop-filter:blur(12px);transition:.25s}
.cs-nav2 a:hover{border-color:var(--accent);transform:translateY(-3px)}
.cs-nav2 .lbl{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mute);display:block;margin-bottom:8px}
.cs-nav2 .ttl{font-family:var(--serif);font-size:1.3rem;font-weight:500}
.cs-nav2 .next{text-align:right}
@media(max-width:700px){.cs-nav2{grid-template-columns:1fr}.cs-nav2 .next{text-align:left}}