/* ============================================================
   Hussainsha Syed — Dossier
   Stylesheet · v.03
   ============================================================ */

:root{
  --bg:#e7e1d4;
  --paper:#f3efe5;
  --ink:#19170f;
  --ink-soft:#514c3c;
  --ink-faint:#857f6c;
  --forest:#14362a;
  --forest-deep:#0d251c;
  --forest-soft:#1d4a3a;
  --brass:#9d7c3c;
  --brass-bright:#c79f55;
  --line:rgba(25,23,15,0.16);
  --line-soft:rgba(25,23,15,0.08);
  --line-light:rgba(243,239,229,0.18);
  --sans:'Hanken Grotesk',sans-serif;
  --serif:'Fraunces',serif;
  --mono:'JetBrains Mono',monospace;
  --sidebar-w:340px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:400;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* Faint blueprint grid overlay */
body::before{
  content:"";
  position:fixed;inset:0;
  background-image:
    linear-gradient(var(--line-soft) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:46px 46px;
  pointer-events:none;
  z-index:0;
  opacity:.6;
}
::selection{background:var(--brass);color:var(--forest-deep)}

/* ============ SIDEBAR ============ */
.sidebar{
  position:fixed;top:0;left:0;
  width:var(--sidebar-w);height:100vh;
  background:var(--forest-deep);
  color:var(--paper);
  display:flex;flex-direction:column;
  padding:42px 38px 34px;
  z-index:50;
  border-right:1px solid rgba(0,0,0,.3);
  overflow:hidden;
}
.sidebar::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(var(--line-light) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-light) 1px,transparent 1px);
  background-size:46px 46px;opacity:.25;pointer-events:none;
}
.crest{
  display:flex;align-items:center;gap:12px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--brass-bright);
  position:relative;z-index:2;
}
.crest .dot{width:7px;height:7px;background:var(--brass-bright);border-radius:50%;flex:none}
.sb-name{
  font-family:var(--serif);font-weight:500;
  font-size:38px;line-height:1.02;letter-spacing:-.01em;
  margin-top:34px;position:relative;z-index:2;
}
.sb-name span{font-style:italic;font-weight:340;color:var(--brass-bright)}
.sb-role{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:rgba(243,239,229,.62);
  margin-top:16px;line-height:1.7;position:relative;z-index:2;
}
.sb-rule{height:1px;background:var(--line-light);margin:30px 0;position:relative;z-index:2}
.index{list-style:none;position:relative;z-index:2;flex:1}
.index li{margin:2px 0}
.index a{
  display:flex;align-items:baseline;gap:14px;
  text-decoration:none;color:rgba(243,239,229,.55);
  font-size:13.5px;letter-spacing:.02em;
  padding:7px 0;transition:color .35s,transform .35s;
}
.index a .num{
  font-family:var(--mono);font-size:10px;
  color:rgba(243,239,229,.35);transition:color .35s;min-width:24px;
}
.index a:hover{color:var(--paper);transform:translateX(5px)}
.index a:hover .num{color:var(--brass-bright)}
.index a.active{color:var(--brass-bright)}
.index a.active .num{color:var(--brass-bright)}
.index a.active::after{
  content:"";flex:1;height:1px;background:var(--brass);
  margin-left:6px;opacity:.5;
}
.sb-foot{
  position:relative;z-index:2;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  color:rgba(243,239,229,.4);line-height:1.9;text-transform:uppercase;
}

/* ============ MAIN LAYOUT ============ */
.main{margin-left:var(--sidebar-w);position:relative;z-index:1}
.wrap{max-width:920px;padding:0 70px}

section{padding:96px 0;border-bottom:1px solid var(--line);position:relative}
.sec-head{display:flex;align-items:flex-start;gap:22px;margin-bottom:46px}
.sec-num{
  font-family:var(--mono);font-size:12px;font-weight:500;
  color:var(--brass);letter-spacing:.1em;padding-top:9px;
}
.sec-title{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(30px,4vw,46px);
  line-height:1.05;letter-spacing:-.015em;
}
.sec-title em{font-style:italic;color:var(--forest)}
.sec-tag{
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink-faint);margin-top:10px;
}

/* ============ HERO ============ */
.hero{
  min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:120px 0 90px;border-bottom:1px solid var(--line);position:relative;
}
.hero-kicker{
  font-family:var(--mono);font-size:11px;letter-spacing:.32em;text-transform:uppercase;
  color:var(--brass);display:flex;align-items:center;gap:14px;margin-bottom:30px;
}
.hero-kicker::before{content:"";width:42px;height:1px;background:var(--brass)}
.hero h1{
  font-family:var(--serif);font-weight:340;
  font-size:clamp(56px,9vw,112px);line-height:.92;letter-spacing:-.025em;
  margin-bottom:10px;
}
.hero h1 .ln2{display:block;font-style:italic;font-weight:300;color:var(--forest)}
.hero-punch{
  font-family:var(--serif);font-style:italic;font-weight:340;
  font-size:clamp(20px,2.4vw,28px);
  color:var(--forest);margin-top:28px;letter-spacing:-.005em;
  display:flex;align-items:center;gap:18px;
}
.hero-punch::before{
  content:"❝";font-style:normal;color:var(--brass);
  font-size:34px;line-height:0;
}
.hero-sub{
  max-width:620px;font-size:18px;color:var(--ink-soft);line-height:1.65;
  margin-top:24px;
}
.hero-meta{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:64px;
  border-top:1px solid var(--line);
}
.hero-meta .cell{padding:22px 24px 0 0;border-right:1px solid var(--line)}
.hero-meta .cell:last-child{border-right:none}
.hero-meta .k{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-faint);
}
.hero-meta .v{
  font-family:var(--serif);font-size:22px;margin-top:7px;line-height:1.15;
}
.hero-meta .v small{
  font-family:var(--sans);font-size:13px;color:var(--ink-soft);
  display:block;margin-top:3px;letter-spacing:0;text-transform:none;
}
.corner-tick{position:absolute;width:14px;height:14px;border:1px solid var(--brass);opacity:.7}
.ct-tl{top:14px;left:0;border-right:none;border-bottom:none}
.ct-br{bottom:14px;right:0;border-left:none;border-top:none}

/* ============ PROFILE ============ */
.lede{
  font-family:var(--serif);font-weight:330;
  font-size:clamp(22px,3vw,30px);line-height:1.4;
  letter-spacing:-.01em;color:var(--ink);
}
.lede em{font-style:italic;color:var(--forest)}
.prose{font-size:16px;color:var(--ink-soft);line-height:1.75;max-width:640px;margin-top:26px}
.prose p+p{margin-top:16px}

.roles{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:0;border:1px solid var(--line);margin-top:38px;background:var(--paper);
}
.role-cell{
  padding:24px 26px;border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.role-cell .rk{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--brass);
}
.role-cell .rv{
  font-family:var(--serif);font-size:19px;margin-top:9px;
  line-height:1.25;letter-spacing:-.005em;
}
.role-cell .rd{font-size:13.5px;color:var(--ink-soft);margin-top:7px;line-height:1.5}

/* ============ TIMELINE ENTRIES ============ */
.entry{
  display:grid;grid-template-columns:170px 1fr;gap:30px;
  padding:30px 0;border-top:1px solid var(--line-soft);position:relative;
}
.entry:first-of-type{border-top:none}
.entry .when{
  font-family:var(--mono);font-size:11.5px;color:var(--brass);
  letter-spacing:.04em;padding-top:4px;
}
.entry .when small{
  display:block;color:var(--ink-faint);margin-top:5px;
  font-size:10px;letter-spacing:.12em;text-transform:uppercase;
}
.entry h3{
  font-family:var(--serif);font-weight:500;font-size:22px;
  line-height:1.2;letter-spacing:-.01em;
}
.entry .org{
  font-size:13.5px;color:var(--forest);font-weight:600;
  margin-top:5px;letter-spacing:.01em;
}
.entry .desc{
  font-size:14.5px;color:var(--ink-soft);line-height:1.7;
  margin-top:13px;max-width:600px;
}
.entry ul{list-style:none;margin-top:12px}
.entry ul li{
  font-size:14px;color:var(--ink-soft);padding-left:20px;
  position:relative;margin:7px 0;line-height:1.6;
}
.entry ul li::before{content:"—";position:absolute;left:0;color:var(--brass)}
.tagrow{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}
.tag{
  font-family:var(--mono);font-size:10px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--forest);
  border:1px solid var(--line);padding:4px 10px;border-radius:2px;
  background:var(--paper);
}

/* ============ PHYSICS ============ */
.physics-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);background:var(--paper);
}
.pcell{
  padding:30px 32px;border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.pcell:nth-child(2n){border-right:none}
.pcell .pk{
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--brass);margin-bottom:12px;
}
.pcell .pv{font-family:var(--serif);font-size:20px;line-height:1.3;letter-spacing:-.01em}
.pcell .pd{font-size:13.5px;color:var(--ink-soft);line-height:1.65;margin-top:10px}
.pcell a{color:var(--forest);text-decoration:none;border-bottom:1px solid var(--brass)}
.pcell a:hover{color:var(--brass)}

.equation{
  grid-column:1/-1;border-right:none;border-bottom:none!important;
  background:var(--forest-deep);color:var(--paper);
  display:flex;align-items:center;justify-content:center;gap:24px;
  padding:42px 38px;font-family:var(--serif);font-style:italic;
  font-size:clamp(22px,3.2vw,32px);letter-spacing:.02em;
  flex-wrap:wrap;text-align:center;
}
.equation span.eqlabel{
  font-family:var(--mono);font-style:normal;font-size:10px;
  letter-spacing:.2em;text-transform:uppercase;color:var(--brass-bright);
  align-self:flex-start;
}
.equation .eq-body{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;justify-content:center}
.equation .term{font-family:var(--serif);font-style:italic}
.equation .term sub{font-size:.55em;font-style:normal;vertical-align:sub}
.equation .op{font-family:var(--mono);font-style:normal;color:var(--brass-bright);padding:0 4px}

.publications{margin-top:38px;display:flex;flex-direction:column;gap:18px}
.publication{
  border:1px solid var(--line);background:var(--paper);
  padding:28px 32px;transition:background .35s,transform .35s;
  text-decoration:none;color:inherit;display:block;
}
.publication:hover{background:#fff;transform:translateY(-2px)}
.publication.featured{border-left:3px solid var(--brass)}
.publication .ptitle{
  font-family:var(--serif);font-size:21px;line-height:1.3;
  letter-spacing:-.01em;color:var(--ink);
}
.publication .ptitle em{font-style:italic;color:var(--forest)}
.publication .pmeta{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brass);margin-top:12px;
}
.publication .pabs{
  font-size:14.5px;color:var(--ink-soft);line-height:1.7;
  margin-top:14px;max-width:680px;
}
.publication .plink{
  display:inline-block;margin-top:14px;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--forest);text-decoration:none;
  border-bottom:1px solid var(--brass);padding-bottom:2px;
}
.publication:hover .plink{color:var(--brass)}

/* ============ FOUNDER / VENTURES ============ */
.ventures{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
}
.vcard{
  display:flex;flex-direction:column;
  border:1px solid var(--line);background:var(--paper);
  padding:28px 28px 24px;text-decoration:none;color:inherit;
  position:relative;overflow:hidden;
  transition:background .35s,transform .35s,border-color .35s;
}
.vcard::before{
  content:"";position:absolute;top:0;left:0;width:0;height:3px;
  background:var(--brass);transition:width .5s cubic-bezier(.16,1,.3,1);
}
.vcard:hover{background:#fff;transform:translateY(-3px);border-color:var(--forest)}
.vcard:hover::before{width:100%}
.vhead{
  display:flex;justify-content:space-between;align-items:baseline;
  gap:12px;margin-bottom:14px;flex-wrap:wrap;
}
.vbrand{
  font-family:var(--serif);font-weight:500;font-size:26px;
  letter-spacing:-.015em;color:var(--ink);line-height:1.1;
}
.vmeta{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--brass);
}
.vtag{
  font-family:var(--serif);font-style:italic;font-weight:400;
  font-size:15.5px;line-height:1.4;color:var(--forest);
  padding:12px 0;border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.vbody{
  font-size:14px;color:var(--ink-soft);line-height:1.7;
  margin-top:16px;flex:1;
}
.vfoot{
  display:flex;justify-content:space-between;align-items:center;
  gap:12px;margin-top:18px;padding-top:14px;
  border-top:1px solid var(--line-soft);
}
.vlink{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--forest);
  border-bottom:1px solid var(--brass);padding-bottom:2px;
  transition:color .3s;
}
.vcard:hover .vlink{color:var(--brass)}
.vrole{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-faint);
}

/* ============ SKILLS ============ */
.skill-group{padding:26px 0;border-top:1px solid var(--line-soft)}
.skill-group:first-of-type{border-top:none}
.skill-group .sg-label{
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--brass);margin-bottom:18px;
}
.bar{margin:14px 0}
.bar-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:7px}
.bar-name{font-size:14.5px;color:var(--ink);font-weight:500}
.bar-lvl{font-family:var(--mono);font-size:10px;color:var(--ink-faint);letter-spacing:.1em}
.bar-track{height:3px;background:var(--line);position:relative;overflow:hidden}
.bar-fill{
  position:absolute;left:0;top:0;height:100%;width:0;
  background:var(--forest);transition:width 1.3s cubic-bezier(.16,1,.3,1);
}
.bar-fill.brass{background:var(--brass)}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:6px}
.chip{
  font-family:var(--mono);font-size:10px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--forest);
  border:1px solid var(--line);padding:5px 11px;border-radius:2px;
  background:var(--paper);
}

/* ============ CERTIFICATIONS ============ */
.certs{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line)}
.cert{
  padding:26px 28px;border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);background:var(--paper);
  position:relative;transition:background .4s;
  text-decoration:none;color:inherit;display:block;
}
.cert:nth-child(2n){border-right:none}
.cert:hover{background:#fff}
.cert .cseal{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  color:var(--brass);text-transform:uppercase;
}
.cert h4{
  font-family:var(--serif);font-weight:500;font-size:18px;
  line-height:1.3;margin-top:11px;letter-spacing:-.01em;
}
.cert .cby{font-size:13px;color:var(--ink-soft);margin-top:7px}
.cert .cid{
  font-family:var(--mono);font-size:10px;color:var(--ink-faint);
  letter-spacing:.06em;margin-top:13px;padding-top:11px;
  border-top:1px solid var(--line-soft);word-break:break-all;
}
.cert .cverify{
  display:inline-block;margin-top:10px;
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--forest);
  border-bottom:1px solid var(--brass);padding-bottom:2px;
}

/* ============ CONTACT ============ */
.contact{
  background:var(--forest-deep);color:var(--paper);
  margin-left:calc(var(--sidebar-w) * -1);margin-right:0;
  padding-left:var(--sidebar-w);border-bottom:none;
}
.contact-inner{padding:90px 70px}
.contact h2{
  font-family:var(--serif);font-weight:340;
  font-size:clamp(36px,5vw,60px);line-height:1.02;letter-spacing:-.02em;
}
.contact h2 em{font-style:italic;color:var(--brass-bright)}
.contact-links{
  display:flex;flex-wrap:wrap;gap:0;margin-top:50px;
  border-top:1px solid var(--line-light);
}
.contact-links a{
  flex:1;min-width:200px;padding:24px 24px 24px 0;
  text-decoration:none;color:var(--paper);
  border-right:1px solid var(--line-light);transition:color .3s;
}
.contact-links a:last-child{border-right:none;padding-right:0}
.contact-links .ck{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--brass-bright);
}
.contact-links .cv{
  font-size:15px;margin-top:9px;
  border-bottom:1px solid transparent;display:inline-block;
  transition:border-color .3s;word-break:break-word;
}
.contact-links a:hover .cv{border-color:var(--brass-bright)}
.colophon{
  margin-top:60px;font-family:var(--mono);font-size:10px;
  letter-spacing:.12em;color:rgba(243,239,229,.4);text-transform:uppercase;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
}

/* ============ REVEAL ANIM ============ */
.reveal{
  opacity:0;transform:translateY(26px);
  transition:opacity .9s cubic-bezier(.16,1,.3,1),
             transform .9s cubic-bezier(.16,1,.3,1);
}
.reveal.in{opacity:1;transform:none}
.hero .reveal{transition-duration:1.1s}

.menu-btn{display:none}

/* ============ RESPONSIVE ============ */

/* — large desktop, slight breathing room — */
@media(max-width:1280px){
  .wrap{padding:0 56px;max-width:880px}
}

/* — tablet & smaller laptops: collapse sidebar to slide-in menu — */
@media(max-width:1080px){
  :root{--sidebar-w:0px}
  .sidebar{
    transform:translateX(-100%);transition:transform .4s;
    width:300px;padding-top:80px;
  }
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .wrap{padding:0 40px;max-width:100%}
  section{padding:80px 0}
  .menu-btn{
    display:flex;position:fixed;top:18px;right:18px;z-index:60;
    width:48px;height:48px;background:var(--forest-deep);color:var(--paper);
    border:none;align-items:center;justify-content:center;cursor:pointer;
    border-radius:3px;font-family:var(--mono);font-size:10px;
    letter-spacing:.1em;flex-direction:column;gap:4px;
  }
  .menu-btn span{width:18px;height:1.5px;background:var(--paper);display:block}
  .contact{margin-left:0;padding-left:0}
  .contact-inner{padding:64px 40px}
  .hero{min-height:auto;padding:120px 0 70px}
}

/* — small tablets / large phones — */
@media(max-width:820px){
  .wrap{padding:0 30px}
  section{padding:70px 0}
  .sec-head{gap:16px;margin-bottom:36px}
  .hero-meta{grid-template-columns:1fr 1fr}
  .hero-meta .cell:nth-child(2){border-right:none}
  .hero-meta .cell:nth-child(3){
    grid-column:1/-1;border-top:1px solid var(--line);
    margin-top:0;padding-top:22px;
  }
  .equation{padding:32px 24px;font-size:clamp(20px,5vw,26px)}
  .ventures{grid-template-columns:1fr}
}

/* — phones — */
@media(max-width:680px){
  .wrap{padding:0 22px}
  section{padding:60px 0}
  .menu-btn{width:44px;height:44px;top:14px;right:14px}
  .hero{padding:100px 0 60px}
  .hero-kicker{font-size:10px;letter-spacing:.24em}
  .hero-punch{font-size:18px;gap:12px}
  .hero-punch::before{font-size:28px}
  .hero-sub{font-size:16px;margin-top:20px}
  .hero-meta{grid-template-columns:1fr;margin-top:48px}
  .hero-meta .cell{
    border-right:none;border-bottom:1px solid var(--line);
    padding:18px 0;
  }
  .hero-meta .cell:nth-child(3){border-top:none;margin-top:0;padding-top:18px}
  .hero-meta .cell:last-child{border-bottom:none}
  .physics-grid{grid-template-columns:1fr}
  .pcell{border-right:none;padding:24px 22px}
  .certs{grid-template-columns:1fr}
  .cert{border-right:none}
  .entry{grid-template-columns:1fr;gap:10px}
  .entry .when{font-size:11px}
  .entry h3{font-size:20px}
  .roles{grid-template-columns:1fr}
  .role-cell{border-right:none}
  .contact-inner{padding:56px 22px}
  .contact-links a{
    border-right:none;border-bottom:1px solid var(--line-light);
    min-width:0;flex:1 1 100%;padding:20px 0;
  }
  .contact-links a:last-child{border-bottom:none}
  .publication{padding:22px 20px}
  .vcard{padding:22px 20px 20px}
  .vbrand{font-size:22px}
  .equation{padding:26px 18px;flex-direction:column;gap:14px}
  .equation .eq-body{font-size:.85em}
}

/* — very small phones — */
@media(max-width:420px){
  .wrap{padding:0 18px}
  .hero h1{font-size:clamp(46px,14vw,64px)}
  .sec-title{font-size:clamp(26px,7vw,34px)}
  .lede{font-size:clamp(19px,5vw,22px)}
  .vhead{flex-direction:column;align-items:flex-start;gap:6px}
  .vfoot{flex-direction:column;align-items:flex-start;gap:8px}
  .sb-name{font-size:32px}
}

/* — accessibility: respect reduced-motion preferences — */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
  .reveal{opacity:1;transform:none}
}