/* ============================================================
   Porcelain Studio — Hikmet Bisen portfolio
   Light gallery system: porcelain surfaces, ink type, one gold
   accent (links hover / indexes / ruler fill / name hairline).
   Fonts: Schibsted Grotesk (display 600, body 400)
          JetBrains Mono (11–13px captions, labels, numbers)
   Motion: expo-out cubic-bezier(.16,1,.3,1), micro 150–300ms,
   load-in ≤630ms, prefers-reduced-motion honored.
   ============================================================ */

/* ---------- tokens ---------- */
:root{
  --bg:#F6F7F5;
  --surface:#FAFAF9;
  --ink:#101214;
  --sec:#6B7076;
  --hair:rgba(16,18,20,.10);
  --gold:#B8905F;
  --gx:clamp(24px,6vw,88px);
  --ease:cubic-bezier(.16,1,.3,1);
}

/* ---------- base ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--bg);
  color:var(--ink);
  font:400 15px/1.5 "Schibsted Grotesk",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:2px}
::selection{background:rgba(184,144,95,.28)}

/* ---------- grain — paper tooth ---------- */
.grain{
  position:fixed;inset:0;z-index:90;pointer-events:none;opacity:.028;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='140' height='140' filter='url(%23n)'/></svg>");
  background-size:140px 140px;
}

/* ---------- measurement ruler (fixed, top of viewport) ----------
   Ticks are built by js/studio.js; the 2px gold line is the scroll
   progress indicator and grows left→right as the page scrolls.   */
.ruler{
  position:fixed;top:0;left:0;right:0;height:16px;z-index:95;
  pointer-events:none;
  background:linear-gradient(rgba(246,247,245,.9),rgba(246,247,245,0));
}
.ruler-ticks{position:absolute;inset:0;overflow:hidden}
.ruler-ticks span{
  position:absolute;top:0;width:1px;height:5px;
  background:rgba(16,18,20,.25);
}
.ruler-ticks span.mj{height:10px}
.ruler-fill{
  position:absolute;top:0;left:0;width:100%;height:2px;
  background:var(--gold);
  transform:scaleX(0);transform-origin:0 0;
}

/* ---------- cursor dot (fine pointers only) ---------- */
#dot{
  position:fixed;left:0;top:0;width:6px;height:6px;border-radius:50%;
  background:var(--ink);z-index:100;pointer-events:none;
  transform:translate(-100px,-100px);
  transition:background-color .18s ease;
  display:none;
}
html.fine #dot{display:block}
#dot.au{background:var(--gold)}
html.fine body,html.fine a,html.fine button{cursor:none}

/* ---------- load-in reveal (hidden states exist ONLY under .js) ---------- */
.js .rise{opacity:0;transform:translateY(12px)}
.js.ready .rise{
  opacity:1;transform:none;
  transition:opacity .42s var(--ease),transform .42s var(--ease);
  transition-delay:calc(var(--d,0)*70ms);
}
@media (prefers-reduced-motion:reduce){
  .js.ready .rise{transition:none}
}

/* ---------- topbar nav ---------- */
.topbar{
  position:absolute;top:0;left:0;right:0;z-index:3;
  display:flex;justify-content:flex-end;flex-wrap:wrap;gap:16px 32px;
  padding:32px var(--gx);
}
.topbar a{
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.14em;text-transform:uppercase;
  display:inline-block;
  transition:transform .22s var(--ease);
}

/* animated gold underline-draw */
.ul{
  background-image:linear-gradient(var(--gold),var(--gold));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  padding-bottom:3px;
  transition:background-size .24s var(--ease);
}
.ul:hover,.ul:focus-visible{background-size:100% 1px}

/* ---------- index hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh}
#stage{position:absolute;inset:0;z-index:0;overflow:hidden}
#stage canvas{position:absolute;inset:0;display:block}
#objshadow{
  display:none;position:absolute;left:50%;top:73%;
  width:min(50vw,400px);height:72px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(16,18,20,.16),rgba(16,18,20,0));
  transform:translateX(-50%);filter:blur(4px);
}
html.webgl #objshadow{display:block}
.fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
html.webgl .fallback{display:none}
.fallback svg{width:min(52vw,300px);height:auto}

.intro{position:relative;z-index:2;padding:calc(14vh + 24px) var(--gx) 0;pointer-events:none}
.intro h1{
  font-size:clamp(44px,8.5vw,104px);font-weight:600;
  line-height:.98;letter-spacing:-.025em;
}
.namebar{width:64px;height:1px;background:var(--gold);margin-top:24px}
.sub{margin-top:16px;color:var(--sec);font-size:15px}

.placardwrap{position:absolute;left:50%;bottom:40px;transform:translateX(-50%);z-index:2}
.placard{font-size:11px;letter-spacing:.06em;color:var(--sec);white-space:nowrap}

/* ---------- selected work ---------- */
.work{max-width:1040px;margin:0 auto;padding:128px var(--gx) 96px;scroll-margin-top:48px}
.work h2{
  font-size:11px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sec);margin-bottom:40px;
}
.rows{border-bottom:1px solid var(--hair)}
.row{
  display:grid;grid-template-columns:72px 1fr;
  padding:32px 0;border-top:1px solid var(--hair);
}
.idx{
  font-size:13px;font-weight:500;line-height:1;padding-top:8px;
  color:transparent;-webkit-text-stroke:1px #A6ABB0;
  transition:color .2s ease,-webkit-text-stroke-color .2s ease;
}
.row:hover .idx,.row:focus-visible .idx{color:var(--ink);-webkit-text-stroke-color:transparent}
.rowtitle{font-size:clamp(20px,2.6vw,26px);font-weight:600;letter-spacing:-.01em;line-height:1.2}
.rowtitle span{
  background-image:linear-gradient(var(--gold),var(--gold));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  padding-bottom:2px;
  transition:background-size .28s var(--ease);
}
.row:hover .rowtitle span,.row:focus-visible .rowtitle span{background-size:100% 1px}
.rowmeta{margin-top:8px;color:var(--sec);font-size:14.5px;line-height:1.55;max-width:56ch}
.rowfact{display:block;margin-top:16px;font-size:11.5px;letter-spacing:.03em;color:var(--sec)}

/* ledger — compact mono rows */
.minor{margin-top:64px;list-style:none;border-top:1px solid var(--hair)}
.minor li{
  padding:16px 0;border-bottom:1px solid var(--hair);
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:12px;line-height:1.6;color:var(--sec);
}
.minor a{color:var(--ink)}

.climb{margin-top:64px;font-size:12px;line-height:1.7;color:var(--sec);letter-spacing:.02em}
.climbk{color:var(--ink);font-weight:500;margin-right:16px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--hair)}
.footin{
  max-width:1040px;margin:0 auto;padding:48px var(--gx) 64px;
  display:flex;flex-wrap:wrap;gap:16px 40px;
}
.footin a{
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:12px;display:inline-block;
  transition:transform .22s var(--ease);
}
.footnote{
  flex-basis:100%;
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:11px;letter-spacing:.03em;color:var(--sec);margin-top:8px;
}

/* ============================================================
   Project pages
   ============================================================ */

/* typographic hero: back link, eyebrow, big title, mono meta line */
.project-hero{
  max-width:1040px;margin:0 auto;
  padding:calc(96px + 6vh) var(--gx) 56px;
}
.project-back{
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.14em;text-transform:uppercase;color:var(--sec);
  display:inline-block;margin-bottom:40px;
  transition:color .2s ease;
}
.project-back:hover,.project-back:focus-visible{color:var(--ink)}
.project-eyebrow{
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.16em;text-transform:uppercase;color:var(--sec);
  margin-bottom:20px;
}
.project-title{
  font-size:clamp(34px,5.8vw,72px);font-weight:600;
  line-height:1.02;letter-spacing:-.02em;max-width:18ch;
}
.project-metaline{
  margin-top:28px;font-size:12px;letter-spacing:.04em;color:var(--sec);
  line-height:1.7;
}
.project-metaline b{color:var(--ink);font-weight:500}

/* sidebar + body grid */
.project-layout{
  max-width:1040px;margin:0 auto;
  padding:0 var(--gx) 96px;
  display:grid;grid-template-columns:260px 1fr;gap:24px 72px;
  align-items:start;
}
.project-sidebar{border-top:1px solid var(--hair)}
.sidebar-section{padding:20px 0;border-bottom:1px solid var(--hair)}
.sidebar-label{
  display:block;
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.16em;text-transform:uppercase;color:var(--sec);
  margin-bottom:10px;
}
.sidebar-value{font-size:14px;line-height:1.55;color:var(--sec)}
.sidebar-value strong{display:block;color:var(--ink);font-weight:600;margin-bottom:2px}
.tool-tags{display:flex;flex-wrap:wrap;gap:6px}
.tool-tag{
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:11px;line-height:1;letter-spacing:.02em;color:var(--sec);
  padding:6px 9px;border:1px solid var(--hair);border-radius:2px;
  background:var(--surface);
}

/* body typography */
.project-body{max-width:62ch}
.project-body h2{
  font-size:clamp(24px,3vw,32px);font-weight:600;
  letter-spacing:-.015em;line-height:1.15;margin-bottom:28px;
}
.project-body h3{
  font-size:18px;font-weight:600;letter-spacing:-.01em;
  margin:36px 0 16px;
}
.project-body p{margin-bottom:20px;font-size:15px;line-height:1.65}
.project-body a{
  background-image:linear-gradient(var(--gold),var(--gold));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  padding-bottom:2px;font-weight:500;
  transition:background-size .24s var(--ease),color .2s ease;
}
.project-body a:hover,.project-body a:focus-visible{background-size:100% 1px;color:var(--gold)}

/* key contributions */
.contributions{
  margin:40px 0;padding:32px 0;
  border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);
}
.contributions h3{
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.16em;text-transform:uppercase;color:var(--sec);
  margin:0 0 24px;
}
.contributions ul{list-style:none}
.contributions li{
  position:relative;padding-left:24px;margin-bottom:14px;
  font-size:14.5px;line-height:1.6;
}
.contributions li::before{content:"—";position:absolute;left:0;color:var(--sec)}
.contributions li:last-child{margin-bottom:0}

/* status badge */
.status-badge{
  display:inline-block;margin-top:8px;
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.14em;text-transform:uppercase;color:var(--sec);
  padding:9px 12px;border:1px solid var(--hair);border-radius:2px;
  background:var(--surface);
}

/* prev / next footer nav */
.prevnext{border-top:1px solid var(--hair)}
.prevnext-inner{
  max-width:1040px;margin:0 auto;padding:40px var(--gx);
  display:flex;justify-content:space-between;align-items:center;gap:24px;
}
.prevnext-item{display:flex;flex-direction:column;gap:8px;min-width:0}
.prevnext-item.next{text-align:right;align-items:flex-end}
.prevnext-label{
  font:500 10.5px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.14em;text-transform:uppercase;color:var(--sec);
}
.prevnext-name{
  font-size:15px;font-weight:600;letter-spacing:-.01em;line-height:1.3;
  background-image:linear-gradient(var(--gold),var(--gold));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  padding-bottom:2px;
  transition:background-size .24s var(--ease);
}
.prevnext-item:hover .prevnext-name,
.prevnext-item:focus-visible .prevnext-name{background-size:100% 1px}
.prevnext-center{
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.14em;text-transform:uppercase;color:var(--sec);
  flex-shrink:0;transition:color .2s ease;
}
.prevnext-center:hover,.prevnext-center:focus-visible{color:var(--ink)}

/* ============================================================
   Resume page
   ============================================================ */
.resume-page{
  max-width:820px;margin:0 auto;
  padding:calc(96px + 4vh) var(--gx) 96px;
}
.resume-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;flex-wrap:wrap;
  padding-bottom:32px;border-bottom:1px solid var(--hair);
}
.resume-head h1{
  font-size:clamp(32px,5vw,52px);font-weight:600;
  letter-spacing:-.02em;line-height:1.05;
}
.resume-contact{
  flex-basis:100%;
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:12px;line-height:1.7;letter-spacing:.03em;color:var(--sec);
}
.btn-download{
  display:inline-block;flex-shrink:0;
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.14em;text-transform:uppercase;
  padding:13px 18px;border:1px solid var(--ink);border-radius:2px;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.btn-download:hover,.btn-download:focus-visible{background:var(--ink);color:var(--bg)}
.resume-section{margin-top:56px}
.resume-section-label{
  display:block;
  font:500 11px/1 "JetBrains Mono",ui-monospace,monospace;
  letter-spacing:.16em;text-transform:uppercase;color:var(--sec);
  padding-bottom:12px;border-bottom:1px solid var(--hair);margin-bottom:28px;
}
.resume-item{margin-bottom:32px}
.resume-item:last-child{margin-bottom:0}
.resume-item-head{
  display:flex;justify-content:space-between;align-items:baseline;
  gap:8px 24px;flex-wrap:wrap;
}
.resume-item-title{font-size:16px;font-weight:600;letter-spacing:-.01em}
.resume-item-meta{
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:11.5px;letter-spacing:.03em;color:var(--sec);
}
.resume-item-sub{color:var(--sec);font-size:13.5px;margin-top:4px}
.resume-item ul{list-style:none;margin-top:12px}
.resume-item li{
  position:relative;padding-left:20px;margin-bottom:8px;
  font-size:14.5px;line-height:1.6;
}
.resume-item li::before{content:"—";position:absolute;left:0;color:var(--sec)}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:900px){
  .project-layout{grid-template-columns:1fr;gap:48px}
}
@media (max-width:560px){
  .topbar{gap:12px 20px;padding:24px var(--gx)}
  .intro{padding-top:calc(12vh + 24px)}
  .work{padding-top:96px}
  .row{grid-template-columns:44px 1fr;padding:24px 0}
  .placard{font-size:10px}
  #objshadow{top:70%;height:56px}
  .project-hero{padding-top:112px}
  .project-metaline{font-size:11px}
  .prevnext-inner{flex-wrap:wrap;gap:20px}
  .prevnext-center{order:3;flex-basis:100%}
  .resume-head{padding-bottom:24px}
}
@media (max-width:400px){
  .topbar{gap:10px 16px}
  .intro h1{font-size:40px}
  .project-title{font-size:30px}
  .minor li{font-size:11px}
  .climb{font-size:11px}
}

/* ============================================================
   Print
   ============================================================ */
@media print{
  .grain,#dot,.ruler,.topbar,#stage,#objshadow,.placardwrap,
  .prevnext,.btn-download{display:none !important}
  body{background:#fff;color:#000;font-size:11pt}
  .js .rise{opacity:1 !important;transform:none !important;transition:none !important}
  a{color:#000}
  .hero{min-height:auto;padding-bottom:24pt}
  .intro{padding-top:24pt}
  .work,.project-hero,.project-layout,.resume-page{padding-top:24pt;padding-bottom:24pt}
  .project-layout{display:block}
  .project-sidebar{margin-bottom:24pt}
  footer{display:none}
}

/* ── survey: full-bleed topographic hero (real DEM contours) ── */
.survey{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.survey canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.survey::after{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,var(--bg) 0%,rgba(246,247,245,.86) 22%,rgba(246,247,245,0) 56%),
  linear-gradient(0deg,rgba(246,247,245,.9) 0%,rgba(246,247,245,0) 16%)}
.summitlbl{position:absolute;z-index:1;transform:translate(10px,-50%);white-space:nowrap;
  font-size:11px;color:var(--sec);letter-spacing:.08em;opacity:0;
  transition:opacity .5s cubic-bezier(0.16,1,0.3,1)}
.summitlbl::before{content:"";position:absolute;left:-7px;top:50%;width:5px;height:5px;
  border-radius:50%;background:var(--gold);transform:translateY(-50%)}
html.mapready .summitlbl{opacity:1}
.hero{cursor:none}
.hero .intro,.hero .placardwrap{z-index:2}
.hero .placardwrap{left:0;right:0;transform:none;display:flex;justify-content:center}
.project-hero{position:relative;overflow:hidden}
.project-hero>*:not(.survey){position:relative;z-index:2}
.project-hero .survey::after{background:
  linear-gradient(90deg,var(--bg) 0%,rgba(246,247,245,.82) 30%,rgba(246,247,245,.25) 70%),
  linear-gradient(0deg,var(--bg) 0%,rgba(246,247,245,0) 22%)}
.project-hero .placardwrap{position:absolute;right:0;bottom:10px;left:auto;transform:none;z-index:2}
@media (max-width:700px){.project-hero .placardwrap{position:static;margin-top:16px}}
@media (prefers-reduced-motion:reduce){.summitlbl{transition:none}}
@media print{.survey,.summitlbl{display:none}}

/* resume: survey is a top band, not a full-page backdrop */
.resume-page .survey{bottom:auto;height:64vh}
.resume-page .survey::after{background:
  linear-gradient(90deg,var(--bg) 0%,rgba(246,247,245,.82) 30%,rgba(246,247,245,.25) 70%),
  linear-gradient(0deg,var(--bg) 0%,rgba(246,247,245,0) 45%)}
.resume-page .placardwrap{display:none}

/* ── about section (one-scroll index) ── */
.about{max-width:1040px;margin:0 auto;padding:96px var(--gx);scroll-margin-top:48px}
.about h2{font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--sec);font-family:var(--mono);margin-bottom:40px}
.about-grid{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start}
.about-photo{width:100%;display:block;border:1px solid var(--hair);filter:saturate(.9) contrast(1.02)}
.about-body p{max-width:56ch;margin-bottom:16px}
.about-stats{display:flex;gap:40px;margin-top:32px}
.about-stats .stat-num{display:block;font-size:30px;font-weight:600;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.about-stats .stat-label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--sec);margin-top:4px}
.resume-page{scroll-margin-top:48px}
@media (max-width:700px){.about-grid{grid-template-columns:1fr;gap:32px}.about-photo{max-width:320px}}

/* ── contact section (index footer, expanded) ── */
footer#contact{padding:112px var(--gx) 64px;scroll-margin-top:48px}
.contact-head{font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--sec);font-family:var(--mono);margin-bottom:28px}
.contact-line{max-width:44ch;margin-bottom:36px;color:var(--sec)}
.contact-mail{display:inline-block;font-size:clamp(24px,4.2vw,52px);font-weight:600;letter-spacing:-.02em;color:var(--ink);text-decoration:none;border-bottom:2px solid transparent;transition:border-color .25s cubic-bezier(0.16,1,0.3,1)}
.contact-mail:hover{border-bottom-color:var(--gold)}
.contact-copy{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--sec);background:none;border:1px solid var(--hair);padding:6px 12px;margin-left:16px;cursor:pointer;vertical-align:super;transition:color .2s,border-color .2s}
.contact-copy:hover{color:var(--gold);border-color:var(--gold)}
.contact-row{margin-top:40px;display:flex;gap:28px;flex-wrap:wrap}

/* index contact footer: stacked layout overrides the link-row base */
footer#contact .footin{display:block}
footer#contact .contact-mail{font-family:"Schibsted Grotesk",system-ui,sans-serif;font-size:clamp(24px,4.2vw,52px)}
footer#contact .contact-row a{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12px}
footer#contact .footnote{margin-top:48px}