/* ── Junsung Ahn — personal site v2 (light minimal) ─────────── */
:root{
  --bg:#EFEDE8; --bg2:#E7E4DD; --card:rgba(255,255,255,.62); --line:rgba(20,20,20,.10);
  --ink:#161514; --mut:#6c6a64; --dim:#98958c;
  --gold:#B07E2B; --gold2:#8f6621;
  --purple:#6D28D9; --purple2:#8B5CF6; --lav:#EDE7FB;
  --r:22px; --max:1180px;
  --f-d:'Sora',-apple-system,'Segoe UI',sans-serif;
  --f-b:'Inter','Pretendard',-apple-system,'Segoe UI',sans-serif;
  --glass:rgba(255,255,255,.55); --glassline:rgba(255,255,255,.85);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--f-b);line-height:1.65;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--ink);color:#fff}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
h1,h2,h3,.disp{font-family:var(--f-d);letter-spacing:-.03em}

/* nav */
#bar{position:fixed;top:0;left:0;height:2.5px;background:var(--ink);width:0;z-index:60}
nav{position:fixed;inset:0 0 auto;z-index:50;backdrop-filter:blur(16px);background:rgba(239,237,232,.7);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-family:var(--f-d);font-weight:800;font-size:16px;letter-spacing:.04em}
.logo em{font-style:normal;color:var(--gold)}
.links{display:flex;gap:28px;align-items:center}
.links a{font-size:13px;color:var(--mut);font-weight:600;letter-spacing:.05em;text-transform:uppercase;position:relative;padding:4px 0}
.links a:hover,.links a.on{color:var(--ink)}
.links a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--ink);border-radius:2px}
.links a.cta{color:#fff;background:var(--ink);padding:10px 18px;border-radius:100px;letter-spacing:.03em}
.links a.cta:hover{background:#000;color:#fff}
#burger{display:none;background:none;border:0;color:var(--ink);font-size:24px;cursor:pointer}

/* hero (ref1 style) */
.hero{position:relative;padding:150px 0 0;overflow:hidden}
.hero .stage{position:relative;min-height:640px;display:flex;align-items:flex-end}
.hero .big{position:absolute;top:16px;left:0;right:0;z-index:0;font-family:var(--f-d);font-weight:800;
  font-size:clamp(110px,21.5vw,305px);line-height:.95;color:var(--ink);letter-spacing:-.05em}
.hero .big .ghost{color:rgba(22,21,20,.07);display:block}
.hero .cut{position:relative;z-index:1;margin:0 auto;display:block;max-height:565px;filter:drop-shadow(0 30px 60px rgba(0,0,0,.22))}
.hero .meta-l{position:absolute;left:0;bottom:120px;z-index:2;max-width:300px}
.hero .meta-r{position:absolute;right:0;bottom:120px;z-index:2;text-align:right;max-width:300px}
.hero .meta-l h4,.hero .meta-r h4{font-family:var(--f-d);font-size:30px;font-weight:800}
.hero .meta-l p,.hero .meta-r p{color:var(--mut);font-size:14px;margin-top:6px}
.hero .intro{position:absolute;left:0;top:58%;z-index:2}
.hero .intro p{font-family:var(--f-d);font-size:clamp(22px,2.6vw,34px);font-weight:600;letter-spacing:-.02em}
.hero .intro .dash{color:var(--gold);font-weight:700}
.hero .scroll{position:absolute;left:0;bottom:26px;z-index:2;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.heroband{border-top:1px solid var(--line)}

/* buttons */
.btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:100px;font-weight:700;font-size:15px;transition:.25s;border:1.5px solid transparent}
.btn.dark{background:var(--ink);color:#fff}.btn.dark:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.18)}
.btn.ghost{border-color:rgba(20,20,20,.2);color:var(--ink)}.btn.ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn.purple{background:var(--purple);color:#fff}.btn.purple:hover{filter:brightness(1.1);transform:translateY(-2px)}

/* marquee */
.marq{border-block:1px solid var(--line);padding:16px 0;overflow:hidden;background:var(--bg2)}
.marq .track{display:flex;gap:54px;white-space:nowrap;animation:marq 32s linear infinite;font-family:var(--f-d);font-weight:700;font-size:14px;letter-spacing:.24em;color:var(--dim)}
.marq .track span i{font-style:normal;color:var(--gold);margin-right:54px}
@keyframes marq{to{transform:translateX(-50%)}}

/* sections */
section{padding:100px 0;position:relative}
.shead{margin-bottom:52px}
.shead h2{font-size:clamp(32px,4.4vw,52px);font-weight:800;line-height:1.08}
.shead p{color:var(--mut);margin-top:14px;max-width:620px;font-size:16.5px}
.k{color:var(--gold)} .kp{color:var(--purple)}

/* glass card base */
.glass{background:var(--glass);backdrop-filter:blur(18px);border:1px solid var(--glassline);border-radius:var(--r);box-shadow:0 18px 50px rgba(30,25,15,.08)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.stat{padding:34px 30px;text-align:center;transition:.3s}
.stat:hover{transform:translateY(-5px)}
.stat .n{font-family:var(--f-d);font-size:52px;font-weight:800;color:var(--ink)}
.stat .n b{color:var(--gold);font-weight:800}
.stat .l{color:var(--mut);font-size:14.5px;margin-top:4px}

/* about */
.about{display:grid;grid-template-columns:.92fr 1.08fr;gap:64px;align-items:center}
.about .cutwrap{position:relative;display:flex;justify-content:center;align-items:flex-end;background:linear-gradient(170deg,#E4E0D7,#efede8 85%);border-radius:28px;border:1px solid var(--line);min-height:560px;overflow:hidden}
.about .cutwrap img{max-height:540px;filter:drop-shadow(0 24px 44px rgba(0,0,0,.2))}
.about p{color:#4c4a45;font-size:17px;margin-bottom:18px}
.about p b{color:var(--ink)}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.pill{padding:18px;border-radius:16px}
.pill h4{font-size:14.5px;margin-bottom:6px;color:var(--gold2)}
.pill p{font-size:13px;color:var(--mut);margin:0}

/* timeline */
.tl{position:relative;margin-top:16px}
.tl::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--gold),rgba(176,126,43,.08))}
.tl .row{position:relative;padding:0 0 32px 44px}
.tl .dot{position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;background:var(--bg);border:2px solid var(--gold);display:grid;place-items:center}
.tl .dot::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}
.tl .yr{font-family:var(--f-d);font-weight:800;color:var(--gold2);font-size:13px;letter-spacing:.12em}
.tl h3{font-size:21px;margin:4px 0 2px}
.tl .role{color:var(--purple);font-size:13.5px;font-weight:600}
.tl p{color:var(--mut);font-size:14.5px;max-width:640px;margin-top:5px}
.tl a.more{font-size:13px;color:var(--gold2);font-weight:700}

/* venture blocks */
.vent{border-top:1px solid var(--line);padding:78px 0}
.vent .head{display:flex;flex-wrap:wrap;align-items:baseline;gap:16px;margin-bottom:8px}
.vent h3{font-size:clamp(28px,3.2vw,40px);font-weight:800}
.vent .meta{display:flex;gap:10px;flex-wrap:wrap}
.tag{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:6px 13px;border-radius:100px;border:1px solid var(--line);color:var(--mut);background:rgba(255,255,255,.5)}
.tag.gold{color:#fff;background:var(--gold);border-color:var(--gold)}
.tag.purple{color:#fff;background:var(--purple);border-color:var(--purple)}
.vent p.desc{color:#4c4a45;max-width:720px;font-size:16.5px;margin:12px 0 8px}
.lesson{display:inline-block;margin-top:8px;font-size:14px;color:var(--gold2);border-left:2.5px solid var(--gold);padding-left:12px;font-style:italic}
.textcard{padding:30px;max-width:720px;margin-top:24px}
.textcard p{color:var(--mut);font-size:15px}

/* slideshow */
.slider{position:relative;margin-top:30px;border-radius:24px;overflow:hidden;border:1px solid var(--glassline);background:#dfdcd4;box-shadow:0 24px 60px rgba(30,25,15,.14)}
.slider .slides{position:relative;height:520px}
.slider .slides img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .8s ease;cursor:zoom-in}
.slider .slides img.contain{object-fit:contain;background:#f4f2ec}
.slider .slides img.on{opacity:1}
.slider .arr{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(255,255,255,.85);backdrop-filter:blur(6px);font-size:19px;color:var(--ink);box-shadow:0 8px 20px rgba(0,0,0,.15);transition:.2s}
.slider .arr:hover{background:#fff;transform:translateY(-50%) scale(1.06)}
.slider .arr.prev{left:16px}.slider .arr.next{right:16px}
.slider .dots{position:absolute;bottom:16px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:5}
.slider .dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.55);cursor:pointer;transition:.25s}
.slider .dots i.on{background:#fff;width:22px;border-radius:100px}
.slider .cnt{position:absolute;top:14px;right:16px;z-index:5;background:rgba(20,20,20,.55);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:100px;letter-spacing:.06em}

/* loglow page */
.lg-hero{background:radial-gradient(1000px 540px at 80% -10%,rgba(139,92,246,.18),transparent 60%),radial-gradient(700px 420px at 0% 110%,rgba(176,126,43,.08),transparent 60%)}
.lg-hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-bottom:90px}
.lg-hero h1{font-size:clamp(52px,7.5vw,96px);line-height:.98;font-weight:800}
.lg-hero .eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--purple);font-weight:700;margin-bottom:20px}
.lg-hero .eyebrow::before{content:"";width:26px;height:1.5px;background:var(--purple)}
.lg-hero p.lead{margin:24px 0 32px;font-size:18px;color:var(--mut);max-width:520px}
.uiphone{max-height:640px;margin:0 auto;filter:drop-shadow(0 34px 70px rgba(60,30,140,.28));border-radius:38px}
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fbox{padding:28px;transition:.3s}
.fbox:hover{transform:translateY(-6px)}
.fbox .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:var(--lav);color:var(--purple);font-size:21px;margin-bottom:14px}
.fbox h4{font-size:18px;margin-bottom:6px}
.fbox p{color:var(--mut);font-size:14.5px}
.fbox img.shot{margin-top:16px;border-radius:14px;border:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:st}
.step{padding:26px;position:relative}
.step::before{counter-increment:st;content:"0" counter(st);font-family:var(--f-d);font-weight:800;color:var(--purple2);font-size:28px}
.step h4{margin:10px 0 6px;font-size:17px}
.step p{font-size:14px;color:var(--mut)}
.phases{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.phase{border-radius:26px;padding:46px 42px}
.phase .pt{font-size:12.5px;font-weight:800;letter-spacing:.18em;color:var(--purple)}
.phase h3{font-size:clamp(30px,3.4vw,42px);margin:10px 0 6px}
.phase .sub{color:var(--mut);font-size:16.5px;margin-bottom:24px}
.phase ul{list-style:none;display:flex;flex-direction:column;gap:14px}
.phase li{display:flex;gap:12px;font-size:16px;color:#4c4a45}
.phase li b{color:var(--ink);min-width:100px;display:inline-block}
.mstrip{margin-top:26px;display:flex;flex-wrap:wrap;gap:9px;align-items:center;font-size:13.5px;font-weight:700;color:var(--purple)}
.mstrip span{background:var(--lav);padding:8px 15px;border-radius:100px}
.mstrip i{color:var(--dim);font-style:normal}
.belief{padding:70px 50px;text-align:center}
.belief h2{font-size:clamp(30px,4vw,48px);line-height:1.25}
.belief .pt{color:var(--gold);font-weight:800;letter-spacing:.18em;font-size:12.5px}
.applg{display:flex;justify-content:center}

/* band */
.band{border-block:1px solid var(--line);background:linear-gradient(120deg,rgba(139,92,246,.09),rgba(176,126,43,.06))}
.band .in{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:40px;padding:70px 0}
.band h2{font-size:clamp(26px,3.6vw,40px)}
.band p{color:var(--mut);margin-top:10px;font-size:16px}
.band img{border-radius:20px;border:1px solid var(--glassline);box-shadow:0 24px 60px rgba(60,30,140,.22)}

/* contact minimal */
.ctcmin{display:flex;flex-direction:column;align-items:center;text-align:center;padding:40px 0 10px}
.ctcmin .face{width:168px;height:168px;border-radius:50%;overflow:hidden;border:1px solid var(--glassline);background:linear-gradient(170deg,#E2DED4,#efede8);box-shadow:0 18px 44px rgba(0,0,0,.14);display:flex;align-items:flex-start;justify-content:center}
.ctcmin .face img{width:150%;max-width:none;margin-top:8px}
.ctcmin h1{font-size:clamp(40px,6vw,72px);margin:26px 0 6px}
.ctcmin .sub{color:var(--mut);font-size:16.5px}
.iconbtns{display:flex;gap:16px;margin-top:36px}
.ibtn{display:flex;align-items:center;gap:11px;padding:16px 30px;border-radius:100px;font-weight:700;font-size:15.5px;transition:.25s}
.ibtn svg{width:21px;height:21px}
.ibtn.mail{background:var(--ink);color:#fff}.ibtn.mail:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.2)}
.ibtn.li{background:#0A66C2;color:#fff}.ibtn.li:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(10,102,194,.35)}
.ctcmin .loc{margin-top:30px;color:var(--dim);font-size:13.5px;letter-spacing:.08em}

/* footer */
footer{border-top:1px solid var(--line);padding:42px 0 58px;background:var(--bg2)}
footer .in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
footer .sig{font-family:var(--f-d);font-weight:800}
footer .sig em{font-style:normal;color:var(--gold)}
footer p{color:var(--dim);font-size:13px}
footer .fl{display:flex;gap:22px}
footer .fl a{color:var(--mut);font-size:13.5px}footer .fl a:hover{color:var(--ink)}

/* lightbox */
#lb{position:fixed;inset:0;background:rgba(20,18,14,.9);display:none;place-items:center;z-index:90;cursor:zoom-out;padding:30px}
#lb.on{display:grid}
#lb img{max-width:92vw;max-height:88vh;border-radius:12px;box-shadow:0 30px 90px rgba(0,0,0,.6)}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}
.noanim .rv{transition:none!important;opacity:1!important;transform:none!important}
.noanim .slider .slides img{transition:none!important}
.noanim .marq .track{animation:none!important}

@media(max-width:960px){
  .hero .big{font-size:clamp(70px,16vw,140px)}
  .hero .meta-l,.hero .meta-r{position:static;text-align:left;max-width:none;margin-top:14px}
  .hero .stage{flex-direction:column;align-items:center;min-height:0;padding-top:110px}
  .hero .intro{position:static;margin-top:10px}
  .about,.lg-hero .grid,.band .in{grid-template-columns:1fr}
  .stats,.steps,.feat{grid-template-columns:1fr 1fr}
  .phases{grid-template-columns:1fr}
  .slider .slides{height:380px}
  .links{display:none;position:fixed;inset:68px 0 auto;background:rgba(239,237,232,.98);flex-direction:column;padding:26px;border-bottom:1px solid var(--line)}
  .links.open{display:flex}
  #burger{display:block}
}
@media(max-width:600px){
  .stats,.steps,.feat{grid-template-columns:1fr}
  .slider .slides{height:300px}
}