/* ============================================================================
   PORTFOLIO — dark "CAD viewport" design system
   The aesthetic is locked. To re-skin the whole site, change --accent only.
   ============================================================================ */

:root{
  /* palette — dark CAD viewport */
  --bg:#0F1115;
  --bg-2:#13161C;
  --card:#171B22;
  --ink:#EDEFF2;
  --muted:#9AA1AC;
  --faint:#646B76;
  --line:#262B33;
  --line-2:#333A44;
  --accent:#5C8DF6;            /* CAD selection-blue — change this to re-skin */
  --accent-ink:#0E1626;
  --accent-soft:rgba(92,141,246,.12);

  /* type */
  --display:"Archivo Expanded", system-ui, sans-serif;
  --body:"Inter", system-ui, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* layout */
  --rail:248px;
  --topbar-h:56px;
  --maxw:1080px;
  --pad:clamp(20px, 4.5vw, 60px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size:54px 54px;
  background-position:center top;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
::selection{background:var(--accent);color:#fff}

/* skip link */
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--accent);color:#fff;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;padding:10px 16px}
.skip:focus{left:0}

/* ---------- shared type bits ---------- */
.eyebrow{font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
.kicker{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.lead{color:var(--muted);max-width:62ch}
h1,h2,h3{margin:0;font-family:var(--display);font-weight:800;line-height:1.02;letter-spacing:-.01em}

/* ---------- dimension line (signature) ---------- */
.dimline{display:flex;align-items:center;gap:0;width:100%;color:var(--faint)}
.dimline .tick{width:1px;height:11px;background:var(--line-2);flex:none}
.dimline .rule{flex:1;height:1px;background:var(--line-2)}
.dimline .label{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);padding:0 14px;white-space:nowrap}
.dimline .arrow{position:relative}
.dimline .arrow::before,.dimline .arrow::after{content:"";position:absolute;top:50%;width:5px;height:1px;background:var(--line-2)}
.dimline .arrow.l::before{left:0;transform:translateY(-50%) rotate(30deg);transform-origin:left}
.dimline .arrow.l::after{left:0;transform:translateY(-50%) rotate(-30deg);transform-origin:left}

/* ============================================================================
   APP LAYOUT  —  side rail + main
   ============================================================================ */
.app{min-height:100vh}
.main{min-width:0}                 /* prevents grid overflow from wide media */

/* ---------- topbar (mobile only) ---------- */
.topbar{
  position:sticky;top:0;z-index:40;height:var(--topbar-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--pad);
  background:rgba(15,17,21,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}

/* desktop: two-column grid, and hide the mobile topbar (this rule must come
   AFTER the base .topbar rule above so it wins at >=921px) */
@media (min-width:921px){
  .app{display:grid;grid-template-columns:var(--rail) 1fr}
  .topbar{display:none}
}
.topbar .brand{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.82rem;letter-spacing:.04em}
.topbar .brand .dot{width:8px;height:8px;background:var(--accent);border-radius:50%;flex:none;box-shadow:0 0 0 4px var(--accent-soft)}
.topbar .brand b{font-weight:600}

/* ---------- side rail (the CAD "feature tree") ---------- */
.rail{
  background:linear-gradient(180deg, rgba(255,255,255,.012), transparent 240px);
  border-right:1px solid var(--line);
}
@media (min-width:921px){
  .rail{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
    padding:26px 18px 22px;overflow-y:auto}
}
.rail__brand{display:flex;align-items:center;gap:11px;padding:0 8px 4px;margin-bottom:6px}
.rail__brand .dot{width:9px;height:9px;background:var(--accent);border-radius:50%;flex:none;box-shadow:0 0 0 4px var(--accent-soft)}
.rail__brand .who{display:flex;flex-direction:column;line-height:1.25}
.rail__brand .who b{font-family:var(--mono);font-size:.86rem;font-weight:600;letter-spacing:.02em}
.rail__brand .who small{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}

.rail__group{margin-top:22px}
.rail__grouplabel{font-family:var(--mono);font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);
  padding:0 8px 10px;display:flex;align-items:center;justify-content:space-between}
.rail__list{list-style:none;margin:0;padding:0 0 0 8px;border-left:1px solid var(--line)}

.rail__link{
  position:relative;display:flex;align-items:center;gap:11px;
  margin-left:-1px;padding:9px 12px;border-left:2px solid transparent;
  font-family:var(--mono);font-size:.8rem;letter-spacing:.03em;color:var(--muted);
  cursor:pointer;transition:color .18s,border-color .18s,background .18s;
}
.rail__link .no{font-size:.66rem;color:var(--faint);transition:color .18s}
.rail__link:hover{color:var(--ink);background:rgba(255,255,255,.02)}
.rail__link:hover .no{color:var(--muted)}
.rail__link.is-active{color:var(--ink);border-left-color:var(--accent);background:var(--accent-soft)}
.rail__link.is-active .no{color:var(--accent)}
.rail__link .count{margin-left:auto;font-size:.62rem;color:var(--faint)}

.rail__foot{margin-top:auto;padding-top:22px}
.rail__cv{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;
  padding:11px 14px;border:1px solid var(--line-2);color:var(--ink);
  transition:border-color .2s,color .2s,background .2s}
.rail__cv:hover{border-color:var(--accent);color:var(--accent)}
.rail__meta{margin-top:18px;display:flex;flex-direction:column;gap:6px}
.rail__meta span{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
.rail__triad{margin-top:16px;opacity:.85}

/* rail — mobile: becomes a horizontal scrolling tab strip */
@media (max-width:920px){
  .rail{position:sticky;top:var(--topbar-h);z-index:30;
    background:rgba(15,17,21,.92);backdrop-filter:blur(10px);
    border-right:0;border-bottom:1px solid var(--line);
    display:flex;gap:6px;overflow-x:auto;padding:9px var(--pad);
    scrollbar-width:none}
  .rail::-webkit-scrollbar{display:none}
  .rail__brand,.rail__grouplabel,.rail__foot{display:none}
  .rail__group{margin:0;display:contents}
  .rail__list{display:flex;gap:6px;padding:0;border-left:0;border-bottom:0}
  .rail__link{margin:0;border:1px solid var(--line);border-radius:999px;padding:7px 14px;white-space:nowrap}
  .rail__link.is-active{border-color:var(--accent);background:var(--accent-soft)}
  .rail__link .count{display:none}
}

/* ---------- view container ---------- */
.view{max-width:var(--maxw);margin:0 auto;padding:clamp(40px,6vw,96px) var(--pad) 40px}
.view:focus{outline:none}

/* ---------- hero (home) ---------- */
.hero{position:relative;padding-bottom:clamp(20px,5vw,48px);overflow:hidden}
.hero__status{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:26px}
.hero__status .live{width:7px;height:7px;border-radius:50%;background:#5fd08a;box-shadow:0 0 0 4px rgba(95,208,138,.12)}
.hero h1{font-size:clamp(2.5rem,7vw,5.6rem);text-transform:uppercase}
.hero h1 .out{color:transparent;-webkit-text-stroke:1.4px var(--accent);text-stroke:1.4px var(--accent)}
.hero__sub{margin-top:28px;font-size:clamp(1.02rem,1.6vw,1.2rem);color:var(--muted);max-width:54ch}
.hero__cta{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.hero__dim{margin-top:48px;max-width:680px}

/* hero entrance */
.reveal-line{display:block;overflow:hidden}
.reveal-line > span{display:block;transform:translateY(105%);transition:transform .8s cubic-bezier(.22,1,.36,1)}
.loaded .reveal-line > span{transform:translateY(0)}
.loaded .reveal-line:nth-child(2) > span{transition-delay:.07s}
.loaded .reveal-line:nth-child(3) > span{transition-delay:.14s}

/* ---------- buttons ---------- */
.btn{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid var(--line-2);color:var(--ink);
  transition:border-color .2s,background .2s,color .2s;cursor:pointer;background:none}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn--solid{background:var(--accent);border-color:var(--accent);color:#fff}
.btn--solid:hover{background:#6f9cf7;border-color:#6f9cf7;color:#fff}

/* ---------- featured strip (home) ---------- */
.featured{margin-top:clamp(48px,7vw,84px)}
.featured__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin-top:34px}
.fcard{display:block;border:1px solid var(--line);background:var(--card);cursor:pointer;
  transition:border-color .2s,transform .2s}
.fcard:hover{border-color:var(--line-2);transform:translateY(-2px)}
.fcard .frame{aspect-ratio:3/2;border:0;border-bottom:1px solid var(--line)}
.fcard__body{padding:16px 16px 18px}
.fcard__cat{font-family:var(--mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.fcard__title{font-family:var(--display);font-weight:700;font-size:1.05rem;text-transform:uppercase;margin:8px 0 4px;letter-spacing:-.01em}
.fcard__meta{font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}

/* ---------- frames / placeholders (signature) ---------- */
.frame{position:relative;border:1px solid var(--line);background:var(--bg-2);overflow:hidden}
.frame img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.22,1,.36,1)}
.frame .tag{position:absolute;top:10px;left:10px;z-index:2;font-family:var(--mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);background:rgba(15,17,21,.7);padding:4px 8px;border:1px solid var(--line)}
.frame .cm{position:absolute;width:11px;height:11px;border:1px solid var(--line-2);z-index:2;transition:border-color .3s}
.frame .cm.tl{top:7px;left:7px;border-right:0;border-bottom:0}
.frame .cm.tr{top:7px;right:7px;border-left:0;border-bottom:0}
.frame .cm.bl{bottom:7px;left:7px;border-right:0;border-top:0}
.frame .cm.br{bottom:7px;right:7px;border-left:0;border-top:0}
.frame.hoverable{cursor:default}
.frame.hoverable:hover{border-color:var(--line-2)}
.frame.hoverable:hover img{transform:scale(1.035)}
.frame.hoverable:hover .cm{border-color:var(--accent)}

.ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(circle at center, rgba(92,141,246,.05), transparent 70%),
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:100% 100%,28px 28px,28px 28px}
.ph span{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);text-align:center;padding:0 16px}
.ratio-3-2{aspect-ratio:3/2}
.ratio-16-9{aspect-ratio:16/9}
.ratio-4-3{aspect-ratio:4/3}
.ratio-1-1{aspect-ratio:1/1}

/* ---------- category header ---------- */
.cat-head{margin-bottom:clamp(40px,6vw,64px)}
.cat-head .eyebrow{display:block;margin-bottom:14px}
.cat-head h2{font-size:clamp(2rem,5vw,3.4rem);text-transform:uppercase}
.cat-head .blurb{margin-top:16px;color:var(--muted);max-width:60ch}
.cat-head .count{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-top:18px;display:inline-block}

/* ---------- projects ---------- */
.projects{display:flex;flex-direction:column;gap:clamp(64px,8vw,116px)}
.project__head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:22px;flex-wrap:wrap}
.project__no{font-family:var(--mono);font-size:.8rem;letter-spacing:.1em;color:var(--accent)}
.project__title{font-size:clamp(1.5rem,3.4vw,2.4rem);text-transform:uppercase;flex:1;min-width:240px}
.project__meta{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);text-align:right}

.project__body{display:grid;grid-template-columns:1.55fr .95fr;gap:clamp(28px,4vw,56px);margin-top:30px;align-items:start}
.proseblock h4{font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 8px}
.proseblock p{margin:0 0 22px;color:var(--muted)}
.proseblock .row:last-child p{margin-bottom:0}

/* title-block / spec card */
.spec{border:1px solid var(--line);background:var(--card)}
.spec__cap{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line)}
.spec__cap span{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.spec__row{display:grid;grid-template-columns:104px 1fr;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line)}
.spec__row:last-child{border-bottom:0}
.spec__row dt{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin:0}
.spec__row dd{margin:0;font-size:.92rem;color:var(--ink)}

/* process strip */
.process{margin-top:30px}
.process .strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.process .step .cap{margin-top:9px;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);display:flex;gap:8px}
.process .step .cap b{color:var(--accent);font-weight:500}

/* video slot */
.video{margin-top:30px}
.video .frame{aspect-ratio:16/9}
.video .play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:2;border:0;background:none;width:100%;cursor:pointer}
.video .play .disc{width:62px;height:62px;border:1px solid var(--line-2);border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(15,17,21,.55);transition:border-color .3s,transform .3s}
.video .frame:hover .play .disc{border-color:var(--accent);transform:scale(1.06)}
.video .play .disc svg{margin-left:3px}
.video iframe,.video video{position:absolute;inset:0;width:100%;height:100%;border:0}

.proj-divider{margin-top:clamp(56px,7vw,96px)}

/* ---------- empty state ---------- */
.empty{border:1px dashed var(--line-2);background:var(--bg-2);padding:clamp(40px,7vw,80px);text-align:center}
.empty .ph-grid{height:120px;margin-bottom:24px}
.empty h3{font-family:var(--mono);font-weight:600;font-size:.9rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.empty p{margin:12px auto 0;color:var(--faint);max-width:42ch;font-size:.92rem}

/* ---------- toolbox ---------- */
.tools{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:40px}
.toolcol h3{font-family:var(--mono);font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.toolcol ul{list-style:none;margin:0;padding:0}
.toolcol li{padding:7px 0;color:var(--muted);font-size:.94rem;border-bottom:1px solid rgba(255,255,255,.04)}
.toolcol li:last-child{border-bottom:0}

/* ---------- about ---------- */
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,5vw,64px);align-items:start}
.about__portrait .frame{aspect-ratio:4/5}
.about__text h2{font-size:clamp(1.8rem,4vw,2.8rem);text-transform:uppercase;margin-bottom:22px}
.about__text p{color:var(--muted);margin:0 0 20px;max-width:58ch}
.about__text p:last-child{margin-bottom:0}
.about__text .em{color:var(--ink)}

/* ---------- contact ---------- */
.contact h2{font-size:clamp(2.2rem,7vw,4.6rem);text-transform:uppercase;margin-bottom:18px}
.contact .mail{display:inline-block;font-family:var(--display);font-weight:700;font-size:clamp(1.3rem,4.5vw,2.6rem);text-transform:lowercase;border-bottom:2px solid var(--line-2);padding-bottom:4px;transition:border-color .25s,color .25s;word-break:break-all}
.contact .mail:hover{border-color:var(--accent);color:var(--accent)}
.contact__row{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center}
.contact__row a{font-family:var(--mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);transition:color .2s}
.contact__row a:hover{color:var(--ink)}
.contact__row .where{font-family:var(--mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);margin-top:clamp(60px,8vw,110px);padding:30px 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.foot p{margin:0;font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;color:var(--faint);text-transform:uppercase}
.foot a.top{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.foot a.top:hover{color:var(--accent)}

/* ---------- scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- focus ---------- */
a:focus-visible,.btn:focus-visible,button:focus-visible,.rail__link:focus-visible,.fcard:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .project__body{grid-template-columns:1fr}
  .about{grid-template-columns:1fr}
  .about__portrait{max-width:340px}
  .tools{grid-template-columns:repeat(2,1fr)}
  .process .strip{grid-template-columns:repeat(2,1fr)}
}
@media (prefers-reduced-motion:reduce){
  .reveal,.reveal-line>span,.frame img,.btn,.rail__link,.fcard{transition:none !important}
  .reveal{opacity:1;transform:none}
  .reveal-line>span{transform:none}
}