/* ============================================================
   Neel Inavolu — Portfolio design system (shared)
   ============================================================ */
:root{
  --bg:#f3f0e9;
  --ink:#161512;
  --ink-soft:#5b574d;
  --line:#d8d2c4;
  --card:#ece7dc;
  --pad:clamp(20px,5vw,72px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:"Inter",system-ui,sans-serif;font-size:16px;line-height:1.5;overflow-x:hidden;
}
::selection{background:var(--ink);color:var(--bg)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.serif{font-family:"Instrument Serif",Georgia,serif;font-weight:400}
.wrap{max-width:1400px;margin:0 auto}

/* ---------- NAV ---------- */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;justify-content:space-between;align-items:center;
  padding:22px var(--pad);mix-blend-mode:difference;color:#fff;
}
nav .brand{font-size:15px;letter-spacing:.02em;font-weight:500}
nav .navlinks{display:flex;gap:26px;font-size:14px}
nav .navlinks a{position:relative;opacity:.85;transition:opacity .3s}
nav .navlinks a:hover{opacity:1}
nav .navlinks a::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:#fff;transition:width .35s ease}
nav .navlinks a:hover::after,nav .navlinks a.active::after{width:100%}
@media(max-width:680px){nav .navlinks{gap:16px;font-size:13px}nav .navlinks a:nth-child(n+4){display:none}}

/* ---------- HERO ---------- */
header.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:120px var(--pad) 60px;position:relative}
header.page-hero{min-height:78vh;padding:160px var(--pad) 70px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 28px;font-size:13px;color:var(--ink-soft);letter-spacing:.04em;text-transform:uppercase;margin-bottom:30px}
.hero-meta b{color:var(--ink);font-weight:500}
.marquee{overflow:hidden;white-space:nowrap;width:100%}
.marquee-track{display:inline-block;will-change:transform;white-space:nowrap}
.marquee-track .mq-seg{display:inline-block;white-space:nowrap}
.marquee h1{display:inline-block;font-family:"Instrument Serif",serif;font-weight:400;font-size:clamp(58px,13vw,200px);line-height:.92;letter-spacing:-.01em;padding-right:.18em}
.marquee h1 em{font-style:italic;color:var(--ink-soft)}
.hero-sub{margin-top:34px;max-width:660px;font-size:clamp(17px,2.2vw,22px);line-height:1.5}
.scrollcue{position:absolute;bottom:30px;left:var(--pad);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);display:flex;align-items:center;gap:10px}
.scrollcue span{display:inline-block;width:34px;height:1px;background:var(--ink-soft);animation:cue 2s ease-in-out infinite;transform-origin:left}
@keyframes cue{0%,100%{transform:scaleX(.3)}50%{transform:scaleX(1)}}

/* page hero title */
.page-kicker{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:26px;display:flex;gap:14px;flex-wrap:wrap}
.page-title{font-family:"Instrument Serif",serif;font-weight:400;font-size:clamp(46px,9vw,128px);line-height:.95;letter-spacing:-.01em}
.page-title em{font-style:italic;color:var(--ink-soft)}
.page-lead{margin-top:32px;max-width:680px;font-size:clamp(17px,2.1vw,22px);line-height:1.5}

/* ---------- SECTION ---------- */
section{padding:clamp(60px,10vh,130px) var(--pad)}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);display:flex;align-items:center;gap:12px;margin-bottom:42px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ink)}
h2.big{font-family:"Instrument Serif",serif;font-size:clamp(34px,5vw,64px);font-weight:400;line-height:1}
h3.med{font-family:"Instrument Serif",serif;font-size:clamp(26px,3.4vw,40px);font-weight:400;line-height:1.05}
.prose{max-width:720px}
.prose p{margin-bottom:18px;font-size:clamp(16px,1.5vw,18px)}
.prose p:last-child{margin-bottom:0}
.prose strong{font-weight:600}
.prose a{border-bottom:1px solid var(--ink-soft);transition:border-color .25s}
.prose a:hover{border-color:var(--ink)}

/* two-column content */
.split{display:grid;grid-template-columns:.9fr 1.5fr;gap:clamp(28px,5vw,80px);align-items:start}
@media(max-width:820px){.split{grid-template-columns:1fr;gap:24px}}
.split .label{font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft)}

/* ---------- WORK LIST ---------- */
.work-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:16px;margin-bottom:10px}
.work-count{font-size:13px;color:var(--ink-soft)}
.project{display:grid;grid-template-columns:54px 1.4fr 1fr auto;align-items:center;gap:24px;padding:30px 6px;border-top:1px solid var(--line);position:relative;transition:padding-left .45s cubic-bezier(.22,1,.36,1)}
.project:last-of-type{border-bottom:1px solid var(--line)}
.project:hover{padding-left:22px}
.project .num{font-size:13px;color:var(--ink-soft)}
.project .title{font-family:"Instrument Serif",serif;font-size:clamp(24px,3.4vw,40px);line-height:1.05}
.project .tags{font-size:13px;color:var(--ink-soft);letter-spacing:.02em}
.project .yr{font-size:13px;color:var(--ink-soft);justify-self:end;display:flex;align-items:center;gap:14px}
.project .arrow{display:inline-block;transition:transform .45s cubic-bezier(.22,1,.36,1)}
.project:hover .arrow{transform:translate(5px,-5px)}
@media(max-width:760px){.project{grid-template-columns:32px 1fr;gap:6px 14px}.project .tags{grid-column:2}.project .yr{grid-column:1/3;justify-self:start;margin-top:4px}}

/* floating hover preview */
.preview{position:fixed;top:0;left:0;width:clamp(360px,34vw,520px);height:clamp(260px,24vw,380px);border-radius:10px;overflow:hidden;pointer-events:none;z-index:60;opacity:0;transform:translate(-50%,-50%) scale(.85);transition:opacity .35s ease,transform .35s cubic-bezier(.22,1,.36,1);box-shadow:0 36px 80px rgba(0,0,0,.28)}
.preview{background:var(--card)}
.preview img{width:100%;height:100%;object-fit:cover}
@media(max-width:760px){.preview{display:none}}

/* ---------- IMAGE STRIP ---------- */
.strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:0 var(--pad) clamp(40px,8vh,90px)}
.strip figure{position:relative;overflow:hidden;border-radius:6px;aspect-ratio:3/2;background:var(--card);border:1px solid var(--line)}
.strip img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s cubic-bezier(.22,1,.36,1)}
.strip figure:hover img{transform:scale(1.06)}
.strip figcaption{position:absolute;left:14px;bottom:12px;font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:#fff;mix-blend-mode:difference}
@media(max-width:760px){.strip{grid-template-columns:1fr}.strip figure{aspect-ratio:16/10}}

/* ---------- ABOUT ---------- */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,80px);align-items:start}
@media(max-width:820px){.about-wrap{grid-template-columns:1fr}}
.about-lead{font-family:"Instrument Serif",serif;font-size:clamp(26px,3.4vw,44px);line-height:1.2}
.about-lead em{color:var(--ink-soft)}
.about-body p{margin-bottom:18px;max-width:46ch}
.about-body p:last-child{margin-bottom:0}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:30px 24px;margin-top:46px}
.stat .n{font-family:"Instrument Serif",serif;font-size:clamp(34px,4.5vw,56px);line-height:1}
.stat .l{font-size:13px;color:var(--ink-soft);margin-top:6px;letter-spacing:.02em}

/* ---------- TIMELINE ---------- */
.tl{border-top:1px solid var(--line)}
.tl .row{display:grid;grid-template-columns:170px 1fr;gap:24px;padding:30px 0;border-bottom:1px solid var(--line)}
.tl .when{font-size:13px;color:var(--ink-soft);letter-spacing:.03em}
.tl .what h4{font-family:"Instrument Serif",serif;font-size:clamp(22px,2.6vw,30px);font-weight:400;margin-bottom:6px}
.tl .what .org{font-size:14px;color:var(--ink-soft);margin-bottom:12px}
.tl .what p{font-size:15px;max-width:60ch}
@media(max-width:680px){.tl .row{grid-template-columns:1fr;gap:8px}}

/* ---------- SKILLS MARQUEE ---------- */
.skills{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0;overflow:hidden}
.skills .marquee-track{font-family:"Instrument Serif",serif;font-size:clamp(28px,4vw,52px)}
.skills span{padding:0 26px}
.skills span.dot{color:var(--ink-soft)}

/* ---------- EMBED / IFRAME ---------- */
.embed{margin-top:18px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--card);box-shadow:0 24px 60px rgba(0,0,0,.10)}
.embed-bar{display:flex;align-items:center;gap:8px;padding:11px 16px;border-bottom:1px solid var(--line);background:#e7e2d6}
.embed-bar i{width:11px;height:11px;border-radius:50%;background:#c9c2b1;display:inline-block}
.embed-bar .url{margin-left:12px;font-size:12px;color:var(--ink-soft);font-family:ui-monospace,Menlo,monospace}
.embed-bar .open{margin-left:auto;font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);border-bottom:1px solid var(--line)}
.embed iframe{width:100%;height:560px;border:0;display:block;background:#fff}
.embed-note{font-size:13px;color:var(--ink-soft);margin-top:10px}
@media(max-width:760px){.embed iframe{height:420px}}

/* ---------- FACT GRID ---------- */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden;margin-top:20px}
.facts .cell{background:var(--bg);padding:24px 22px}
.facts .k{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px}
.facts .v{font-size:15px;line-height:1.4}
@media(max-width:760px){.facts{grid-template-columns:1fr 1fr}}

/* stack list (numbered explanation blocks) */
.steps{counter-reset:s;border-top:1px solid var(--line)}
.steps li{list-style:none;counter-increment:s;display:grid;grid-template-columns:64px 1fr;gap:20px;padding:28px 0;border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:"Instrument Serif",serif;font-size:26px;color:var(--ink-soft)}
.steps h4{font-size:18px;font-weight:600;margin-bottom:6px}
.steps p{font-size:15px;color:var(--ink-soft);max-width:62ch}
@media(max-width:680px){.steps li{grid-template-columns:40px 1fr;gap:12px}}

/* tag chips */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chips span{font-size:13px;padding:8px 15px;border:1px solid var(--line);border-radius:100px;color:var(--ink-soft)}

/* prev/next nav */
.pager{display:flex;justify-content:space-between;gap:20px;padding:60px var(--pad);border-top:1px solid var(--line)}
.pager a{font-family:"Instrument Serif",serif;font-size:clamp(20px,3vw,34px);transition:opacity .3s}
.pager a:hover{opacity:.6}
.pager .lbl{display:block;font-family:"Inter";font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:6px}
.pager .next{text-align:right}

/* ---------- CONTACT / FOOTER ---------- */
footer{padding:clamp(80px,14vh,170px) var(--pad) 40px;position:relative}
.ct-big{font-family:"Instrument Serif",serif;font-size:clamp(46px,10vw,150px);line-height:.96;letter-spacing:-.01em}
.ct-big a{display:inline-block;transition:color .3s}
.ct-big a:hover{color:var(--ink-soft)}
.ct-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:80px;font-size:14px}
@media(max-width:760px){.ct-grid{grid-template-columns:1fr 1fr;gap:30px 20px}}
.ct-grid h4{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:14px;font-weight:500}
.ct-grid a{display:block;margin-bottom:7px;opacity:.9;transition:opacity .25s}
.ct-grid a:hover{opacity:1}
.ct-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:90px;padding-top:24px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-soft);letter-spacing:.03em}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity 1s cubic-bezier(.22,1,.36,1),transform 1s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}.reveal-d2{transition-delay:.16s}.reveal-d3{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.marquee-track{animation:none!important}html{scroll-behavior:auto}}