/* ============================================================
   jasonhwa.com — two skins on one content set
   Skin 1: "editorial" (light, kinetic designer-folio)
   Skin 2: "machine"   (dark, generative / agentic)
   ============================================================ */

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;overflow-x:hidden;-webkit-font-smoothing:antialiased;
  font-family:var(--sans);line-height:1.55;background:var(--bg);color:var(--fg);
  transition:background-color .45s ease,color .45s ease}

/* ---------- SKIN TOKENS ---------- */
:root[data-skin="editorial"]{
  --bg:#f3f1ec; --fg:#0f0e0c; --mut:#77726a; --line:#dcd8ce; --rule:#0f0e0c;
  --panel:#ffffff; --accent:#ff3b1d; --live:#1a8f4c;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --h1:clamp(46px,10.5vw,140px); --disp-weight:850; --disp-track:-.045em;
}
:root[data-skin="machine"]{
  --bg:#080b0a; --fg:#dce7e0; --mut:#6b7a72; --line:#1b2621; --rule:#1b2621;
  --panel:#0d1210; --accent:#00ff9c; --live:#00ff9c;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --h1:clamp(38px,6.8vw,78px); --disp-weight:760; --disp-track:-.03em;
}

.wrap{max-width:1180px;margin:0 auto;padding:0 30px;position:relative;z-index:1}
section{padding:88px 0}
.eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--accent);margin:0 0 14px}
.s-title{font-size:clamp(26px,4vw,42px);font-weight:var(--disp-weight);letter-spacing:-.025em;
  margin:0;max-width:20ch;text-wrap:balance;line-height:1.05}

/* reveal (shared) */
.reveal{opacity:0;transform:translateY(30px);
  transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- generative canvas (machine only) ---------- */
#net{position:fixed;inset:0;z-index:0;display:none;opacity:.5;pointer-events:none}
:root[data-skin="machine"] #net{display:block}

/* ---------- skin toggle ---------- */
.skin-toggle{position:fixed;right:20px;bottom:20px;z-index:50;display:inline-flex;align-items:center;
  gap:9px;font-family:var(--mono);font-size:13px;cursor:pointer;padding:11px 16px;
  background:var(--panel);color:var(--fg);border:2px solid var(--rule);border-radius:999px;
  transition:transform .15s ease,box-shadow .15s ease,background-color .3s,color .3s,border-color .3s}
.skin-toggle .st-ic{font-size:15px;line-height:1}
:root[data-skin="editorial"] .skin-toggle{box-shadow:4px 4px 0 var(--rule)}
:root[data-skin="editorial"] .skin-toggle:hover{transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--rule)}
:root[data-skin="machine"] .skin-toggle{border-color:var(--accent);color:var(--accent)}
:root[data-skin="machine"] .skin-toggle:hover{box-shadow:0 0 22px -4px var(--accent);transform:translateY(-2px)}

/* ---------- nav ---------- */
nav{position:sticky;top:0;z-index:30;background:var(--bg);border-bottom:2px solid var(--rule);
  transition:background-color .45s ease,border-color .45s ease}
:root[data-skin="machine"] nav{background:rgba(8,11,10,.72);backdrop-filter:blur(12px);border-bottom-width:1px}
.nav-in{max-width:1180px;margin:0 auto;padding:15px 30px;display:flex;align-items:center;gap:24px}
.brand{font-weight:800;letter-spacing:-.02em;font-size:18px;text-decoration:none;color:var(--fg)}
.brand .dot{color:var(--accent)}
.links{margin-left:auto;display:flex;gap:24px;font-family:var(--mono);font-size:13px}
.links a{color:var(--fg);text-decoration:none;opacity:.72;transition:opacity .2s,color .2s}
.links a:hover{opacity:1;color:var(--accent)}

/* ---------- hero ---------- */
#hero{padding:76px 0 30px}
.kick{font-family:var(--mono);font-size:13px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent);margin:0 0 22px}
h1{margin:0;font-size:var(--h1);line-height:.98;font-weight:var(--disp-weight);letter-spacing:var(--disp-track)}
.line{display:block}
.line>span{display:block}
/* clip only in editorial (for the mask reveal); pad so descenders g/y/p aren't cut */
:root[data-skin="editorial"] .line{overflow:hidden;padding-bottom:.12em;margin-bottom:-.12em}
h1 .accent{color:var(--accent)}
:root[data-skin="editorial"] h1 .accent{font-style:italic}
:root[data-skin="editorial"] .line>span{transform:translateY(130%);transition:transform 1s cubic-bezier(.16,1,.3,1)}
:root[data-skin="editorial"].go .line>span{transform:none}
:root[data-skin="editorial"] .line:nth-child(2)>span{transition-delay:.08s}
:root[data-skin="editorial"] .line:nth-child(3)>span{transition-delay:.16s}

/* typewriter (machine only) */
.type{display:none;font-family:var(--mono);font-size:clamp(15px,2vw,19px);color:#7fe9c6;
  margin:22px 0 0;min-height:1.6em}
:root[data-skin="machine"] .type{display:block}
.type .cur{color:var(--accent);animation:blink 1.1s step-end infinite}
@keyframes blink{50%{opacity:0}}

.lead{display:flex;justify-content:space-between;gap:44px;margin-top:40px;flex-wrap:wrap}
.lead-p{font-size:clamp(17px,1.7vw,20px);max-width:48ch;margin:0;color:var(--fg);opacity:.9}
.cta{display:flex;flex-direction:column;gap:12px;align-items:flex-start}

/* buttons */
.btn{font-family:var(--mono);font-size:14px;text-decoration:none;padding:12px 20px;border-radius:10px;
  border:1.5px solid transparent;display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background-color .2s,color .2s,border-color .2s}
:root[data-skin="editorial"] .btn.pri{background:var(--fg);color:var(--bg);box-shadow:4px 4px 0 var(--rule)}
:root[data-skin="editorial"] .btn.pri:hover{transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--rule)}
:root[data-skin="editorial"] .btn.acc{background:var(--accent);color:#fff}
:root[data-skin="editorial"] .btn.acc:hover{transform:translateY(-2px)}
:root[data-skin="editorial"] .btn.ghost{border-color:var(--rule);color:var(--fg)}
:root[data-skin="editorial"] .btn.ghost:hover{background:var(--fg);color:var(--bg)}
:root[data-skin="machine"] .btn.pri{background:var(--accent);color:#04120b;font-weight:700}
:root[data-skin="machine"] .btn.pri:hover{box-shadow:0 0 26px -4px var(--accent);transform:translateY(-2px)}
:root[data-skin="machine"] .btn.acc{border-color:var(--accent);color:var(--accent)}
:root[data-skin="machine"] .btn.acc:hover{background:rgba(0,255,156,.08)}
:root[data-skin="machine"] .btn.ghost{border-color:var(--line);color:var(--fg)}
:root[data-skin="machine"] .btn.ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- marquee (editorial only) ---------- */
.marquee{margin-top:56px;border-top:2px solid var(--rule);border-bottom:2px solid var(--rule);
  overflow:hidden;white-space:nowrap;padding:15px 0}
:root[data-skin="machine"] .marquee{display:none}
.track{display:inline-block;animation:scrollx 28s linear infinite;font-family:var(--mono);font-size:15px}
.track span{margin:0 24px;color:var(--mut)}
.track .hot{color:var(--accent);font-weight:700}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);margin-top:34px;
  border:2px solid var(--rule);border-radius:2px;overflow:hidden}
:root[data-skin="machine"] .metrics{border-width:1px;border-radius:12px;gap:1px;background:var(--line)}
.metrics div{padding:20px;border-right:2px solid var(--rule)}
.metrics div:last-child{border-right:none}
:root[data-skin="machine"] .metrics div{background:var(--panel);border-right:none}
.metrics b{display:block;font-weight:var(--disp-weight);font-size:30px;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums}
:root[data-skin="machine"] .metrics b{font-family:var(--mono);font-weight:600;font-size:26px}
.metrics small{display:block;color:var(--mut);font-family:var(--mono);font-size:11.5px;
  letter-spacing:.04em;margin-top:5px}

/* ---------- work rows ---------- */
#work .rows{margin-top:26px}
.row{display:grid;grid-template-columns:96px 1fr;gap:30px;padding:38px 0;border-top:2px solid var(--rule)}
:root[data-skin="machine"] .row{border-top-color:var(--line)}
.idx{font-size:clamp(38px,6vw,66px);font-weight:var(--disp-weight);letter-spacing:-.04em;
  line-height:.8;color:var(--accent)}
:root[data-skin="machine"] .idx{font-family:var(--mono);font-weight:700;font-size:clamp(30px,4vw,44px)}
.row-body h3{font-size:clamp(26px,4vw,46px);font-weight:var(--disp-weight);letter-spacing:-.03em;margin:0;
  line-height:1.02;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
:root[data-skin="machine"] .row-body h3{font-size:clamp(24px,3.4vw,34px)}
.live{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--live);letter-spacing:.02em;
  text-transform:lowercase}
.meta{font-family:var(--mono);font-size:12.5px;color:var(--mut);text-transform:uppercase;
  letter-spacing:.05em;margin:12px 0 0}
.desc{font-size:16.5px;color:var(--fg);opacity:.9;max-width:66ch;margin:14px 0 0}
.chips{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px;font-family:var(--mono);font-size:13px;color:var(--mut)}
:root[data-skin="machine"] .chips{gap:8px}
:root[data-skin="machine"] .chips span{border:1px solid var(--line);border-radius:6px;padding:4px 8px}
.row-link{display:inline-block;margin-top:16px;font-family:var(--mono);font-size:13.5px;color:var(--accent);
  text-decoration:none;border-bottom:1.5px solid var(--accent);padding-bottom:2px}
.row-link.muted{color:var(--mut);border-color:var(--line);cursor:default}

/* ---------- approach / compounding loop ---------- */
.loop-grid{margin-top:40px}
:root[data-skin="machine"] .loop-grid{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:center}
.ap-loop{display:none}
:root[data-skin="machine"] .ap-loop{display:block}
.ap-loop svg{width:100%;height:auto;max-width:320px;margin:0 auto;display:block}
.spiral{stroke:url(#spiralgrad);stroke-width:2.2;stroke-linecap:round}
.guide{fill:none;stroke:var(--line);stroke-width:1}
.phase{fill:var(--panel);stroke:var(--accent);stroke-width:1.5}
.phase-num{fill:var(--fg);font-family:var(--mono);font-size:12px}
.iter{fill:var(--accent);font-family:var(--mono);font-size:11px;text-anchor:middle;letter-spacing:.14em;text-transform:uppercase}
#comet circle{fill:var(--accent)}

.loop-steps{list-style:none;margin:0;padding:0;display:grid;gap:0}
:root[data-skin="editorial"] .loop-steps{grid-template-columns:1fr 1fr;gap:24px 44px;margin-top:6px}
.loop-steps li{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  border-top:2px solid var(--rule);padding-top:16px}
:root[data-skin="machine"] .loop-steps li{border-top-color:var(--line);padding:13px 0}
.loop-steps .ln{font-family:var(--mono);color:var(--accent);font-weight:700;font-size:15px}
:root[data-skin="editorial"] .loop-steps .ln{font-size:30px;font-weight:850;line-height:.85;letter-spacing:-.03em}
.loop-steps b{font-size:17px;letter-spacing:-.01em}
.loop-steps p{color:var(--mut);font-size:14.5px;margin:5px 0 0;max-width:44ch}
.loop-note{max-width:70ch;margin:34px 0 0;font-size:16px;color:var(--fg);opacity:.9}
.offer{margin:16px 0 0;font-family:var(--mono);font-size:14px;color:var(--mut)}
.offer b{color:var(--fg);font-weight:600}

/* ---------- project previews ---------- */
.preview{margin:20px 0 0;border:2px solid var(--rule);border-radius:3px;overflow:hidden;background:var(--panel)}
:root[data-skin="machine"] .preview{border-width:1px;border-color:var(--line);border-radius:10px}
.preview .ph{aspect-ratio:16/9;display:none;flex-direction:column;align-items:center;justify-content:center;gap:7px;
  padding:20px;text-align:center;color:var(--mut);
  background:repeating-linear-gradient(45deg,transparent 0 13px,rgba(120,110,90,.06) 13px 26px),var(--panel)}
:root[data-skin="machine"] .preview .ph{background:repeating-linear-gradient(45deg,transparent 0 13px,rgba(0,255,156,.05) 13px 26px),var(--panel)}
.preview .ph span{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.preview .ph b{font-size:15px;color:var(--fg);opacity:.7}
.preview img{display:block;width:100%;height:auto}
.preview iframe{display:block;width:100%;aspect-ratio:16/9;border:0}
.preview figcaption{font-family:var(--mono);font-size:11.5px;color:var(--mut);padding:9px 14px;border-top:1px solid var(--line)}
.socials{margin:14px 0 0;font-family:var(--mono);font-size:13px;color:var(--mut)}
.socials a{color:var(--accent);text-decoration:none;border-bottom:1.5px solid var(--accent);padding-bottom:1px}
.socials .muted{color:var(--mut);border:0}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-top:20px}
.about-lead{font-size:clamp(22px,2.6vw,30px);font-weight:600;letter-spacing:-.02em;line-height:1.25;margin:0}
.about-body p{font-size:16.5px;color:var(--fg);opacity:.88;margin:0 0 16px}

/* ---------- passions ---------- */
.pass-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:36px}
.pass{border-top:2px solid var(--rule);padding-top:18px}
:root[data-skin="machine"] .pass{border-top-color:var(--line)}
.pass h4{font-size:18px;margin:0}
.pass p{color:var(--mut);font-size:15px;margin:9px 0 0;max-width:52ch}

/* ---------- contact ---------- */
#contact{padding:96px 0 70px;border-top:2px solid var(--rule)}
:root[data-skin="machine"] #contact{border-top-color:var(--line)}
.contact-h{font-size:clamp(30px,5.5vw,64px);font-weight:var(--disp-weight);letter-spacing:-.03em;
  margin:0;max-width:16ch;line-height:1.02;text-wrap:balance}
.contact-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.colophon{font-family:var(--mono);font-size:12.5px;color:var(--mut);margin:40px 0 0}

/* ---------- responsive ---------- */
@media(max-width:820px){
  .links{display:none}
  .metrics{grid-template-columns:1fr 1fr}
  .metrics div:nth-child(2){border-right:none}
  :root[data-skin="machine"] .loop-grid{grid-template-columns:1fr;justify-items:center}
  :root[data-skin="editorial"] .loop-steps{grid-template-columns:1fr}
  .about-grid,.pass-grid{grid-template-columns:1fr}
  .row{grid-template-columns:56px 1fr;gap:18px}
  .lead{gap:28px}
}

/* ---------- reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  :root[data-skin="editorial"] .line>span{transform:none;transition:none}
  .track{animation:none}
  .type .cur{animation:none}
  .skin-toggle,.btn{transition:none}
}