/* ---------- Tokens ---------- */
:root{
  --bg:#ffffff; --bg-alt:#f6f7f9; --card:#ffffff;
  --ink:#141821; --ink-2:#4a5160; --muted:#8a909c; --line:#e6e8ec;
  --brand:#1f2f6b; --brand-2:#2c47b5; --accent:#2bb3b1; --danger:#d14343;
  --radius:14px; --shadow:0 1px 2px rgba(20,24,33,.04),0 8px 24px rgba(20,24,33,.06);
  --font:"Pretendard",-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;word-break:keep-all}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em}
p{margin:0}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)} .small{font-size:13px}
[hidden]{display:none!important}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:24px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;text-decoration:none}
.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;font-size:12px;letter-spacing:.02em}
.nav-links{display:flex;gap:22px;margin-left:auto}
.nav-links a{text-decoration:none;color:var(--ink-2);font-size:14.5px;font-weight:500}
.nav-links a:hover{color:var(--brand)}
.lang{border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 12px;font:600 12px var(--font);cursor:pointer;color:var(--ink-2)}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding-top:64px;padding-bottom:72px}
.eyebrow{color:var(--brand-2);font-weight:600;font-size:14px;margin-bottom:14px}
.eyebrow.quote{font-style:italic;font-weight:500;max-width:420px;line-height:1.5;padding-left:12px;border-left:2px solid var(--brand-2)}
.eyebrow.quote::before{content:"\201C"}.eyebrow.quote::after{content:"\201D"}
.hero h1{display:flex;flex-direction:column;gap:4px}
.name-ko{font-size:clamp(40px,6vw,64px);font-weight:800}
.name-en{font-size:clamp(20px,2.4vw,26px);font-weight:500;color:var(--ink-2);letter-spacing:-.01em}
.tagline{margin-top:20px;font-size:18px;color:var(--ink-2)}
.socials{display:flex;gap:10px;margin-top:24px}
.socials a{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);color:var(--ink);transition:.15s}
.socials a:hover{border-color:var(--brand);color:#fff;background:var(--brand)}
.socials svg{width:19px;height:19px}
.small-icons a{width:34px;height:34px;border-radius:10px}
.small-icons svg{width:16px;height:16px}
.hero-cta{display:flex;gap:10px;margin-top:28px;flex-wrap:wrap}
.hero-photo{margin:0;aspect-ratio:4/5;border-radius:24px;background:#dfe6ee center 40%/cover no-repeat;box-shadow:var(--shadow)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:44px;padding:0 20px;border-radius:12px;font:600 15px var(--font);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-sm{height:36px;padding:0 14px;font-size:14px;border-radius:10px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:#16235a}
.btn-primary:disabled{opacity:.55;cursor:default}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink-2)}
.link-btn{background:none;border:0;padding:0;font:500 14px var(--font);color:var(--ink-2);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.link-btn.danger{color:var(--danger)}
.icon-btn{border:0;background:rgba(255,255,255,.9);width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:15px;color:var(--ink)}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section.alt{background:var(--bg-alt)}
.section-title{font-size:28px;font-weight:750;margin-bottom:8px}
.sub-title{font-size:18px;margin:44px 0 14px}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:24px}

/* About */
.about{display:grid;grid-template-columns:240px 1fr;gap:56px}
.avatar{width:148px;height:148px;border-radius:50%;background:#dfe6ee center/cover;margin-bottom:18px;box-shadow:var(--shadow)}
.about-name{font-weight:700;font-size:18px}
.intro p{color:var(--ink-2);font-size:17px;margin-top:14px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:36px}
.stat{border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.stat b{display:block;font-size:30px;font-weight:800;color:var(--brand);letter-spacing:-.03em}
.stat span{font-size:14px;color:var(--ink-2)}

/* Career */
.timeline{list-style:none;margin:28px 0 0;padding:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 28px 28px}
.timeline li::before{content:"";position:absolute;left:-7px;top:7px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--brand)}
.timeline li:first-child::before{background:var(--brand)}
.t-period{font-size:13px;font-weight:600;color:var(--brand-2)}
.t-org{font-size:18px;font-weight:700;margin-top:2px}
.t-role{color:var(--ink-2);font-size:15px}
.edu{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.edu li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:14.5px}

/* ---------- Album ---------- */
.album-tools{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;font:500 14px var(--font);cursor:pointer;color:var(--ink-2)}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.seg button{border:0;background:#fff;padding:7px 14px;font:500 13.5px var(--font);cursor:pointer;color:var(--ink-2)}
.seg button.on{background:var(--bg-alt);color:var(--ink);font-weight:700}
.year-group{margin-top:32px}
.year-head{display:flex;align-items:baseline;gap:10px;padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.year-head h3{font-size:24px;font-weight:800}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.post{cursor:pointer;background:none;border:0;padding:0;text-align:left;font:inherit;color:inherit}
.post-img{position:relative;aspect-ratio:4/5;border-radius:var(--radius);background:#e9edf2 center/cover no-repeat;overflow:hidden;transition:transform .25s}
.post:hover .post-img{transform:translateY(-3px)}
.post:focus-visible .post-img{outline:3px solid var(--brand-2);outline-offset:2px}
.post-meta{padding:10px 2px 0}
.post-title{font-weight:650;font-size:15.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-sub{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:2px}
.post-sub span+span{margin-left:10px}
.empty{padding:48px 0;text-align:center}

/* Image protection */
.protected{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none;position:relative}
.protected::after{content:"";position:absolute;inset:0;background:transparent}
.wm{position:absolute;right:14px;bottom:12px;z-index:2;color:rgba(255,255,255,.75);font-size:12px;font-weight:600;letter-spacing:.04em;text-shadow:0 1px 3px rgba(0,0,0,.4);pointer-events:none}
@media print{.protected,.post-img,.viewer-photo{background-image:none!important}}

/* ---------- Guestbook ---------- */
.gb{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}
.form{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:13.5px;font-weight:600;color:var(--ink-2)}
.form input,.form textarea{font:400 15px var(--font);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:11px 13px;background:#fff;width:100%;resize:vertical}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(44,71,181,.12)}
.form .invalid{border-color:var(--danger)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-foot{display:flex;justify-content:space-between;align-items:center;gap:12px}
.form-msg{font-size:13.5px;min-height:0}
.form-msg.err{color:var(--danger)} .form-msg.ok{color:#1d8a5a}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0}
.gb-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;max-height:620px;overflow:auto}
.gb-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.gb-top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.gb-name{font-weight:700}
.gb-msg{color:var(--ink-2);margin-top:6px;white-space:pre-wrap;word-break:break-word}
.owner-email{font-size:12px;color:var(--brand-2)}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);padding:32px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.brand-foot{font-weight:700}

/* ---------- Modals ---------- */
.modal{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:20px}
.modal-backdrop{position:absolute;inset:0;background:rgba(12,15,22,.72)}
.close{position:absolute;top:12px;right:12px;z-index:3}
.dialog{position:relative;width:100%;max-width:460px;max-height:92vh;overflow:auto;margin:0}
.dialog h3{font-size:20px}
.viewer-box{position:relative;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,1fr);width:100%;max-width:1080px;height:min(86vh,760px);background:#fff;border-radius:18px;overflow:hidden}
.viewer-photo{background:#0e1117 center/contain no-repeat}
.viewer-side{padding:28px 24px 20px;overflow:auto;display:flex;flex-direction:column}
.viewer-side h3{font-size:21px;margin-top:2px;padding-right:36px}
.v-caption{color:var(--ink-2);margin-top:8px;white-space:pre-wrap}
.v-actions{display:flex;align-items:center;justify-content:space-between;margin:16px 0 4px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.v-owner{display:flex;gap:14px}
.like-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;font:600 14px var(--font);cursor:pointer}
.like-btn .heart{font-size:17px;line-height:1}
.like-btn.on{border-color:#f3c1c8;background:#fff3f5;color:#d6334f}
.v-ctitle{font-size:15px;margin:16px 0 8px}
.comments{list-style:none;margin:0;padding:0;flex:1;display:flex;flex-direction:column;gap:12px}
.comments li{font-size:14.5px}
.c-name{font-weight:700;margin-right:6px}
.c-date{font-size:12px;color:var(--muted)}
.c-body{color:var(--ink-2);white-space:pre-wrap;word-break:break-word}
.form.compact{margin-top:14px;gap:8px;border-top:1px solid var(--line);padding-top:14px}
.form.compact input,.form.compact textarea{padding:9px 12px;font-size:14px}
.drop{display:grid!important;place-items:center;min-height:180px;border:1.5px dashed var(--line);border-radius:12px;cursor:pointer;color:var(--muted)!important;font-weight:500!important;overflow:hidden;text-align:center;padding:10px}
.drop:hover{border-color:var(--brand-2)}
.drop img{max-height:260px;border-radius:8px}

.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 18px;border-radius:10px;font-size:14px;z-index:80;box-shadow:var(--shadow)}
.demo-banner{position:fixed;left:16px;bottom:16px;z-index:40;background:#fff8e1;border:1px solid #f1d58a;color:#7a5b00;font-size:12.5px;padding:8px 12px;border-radius:10px;max-width:calc(100% - 32px);cursor:pointer}
.demo-banner::after{content:"  ✕";font-weight:700}
@media (max-width:600px){.demo-banner{font-size:11.5px;padding:6px 10px;left:10px;bottom:10px}}
body:not(.is-owner) .owner-only{display:none!important}
body:not(.demo) .demo-only{display:none}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .nav-links{display:none}
  .lang{margin-left:auto}
  .hero{grid-template-columns:1fr;gap:32px;padding-top:36px;padding-bottom:48px}
  .hero-photo{order:-1;aspect-ratio:4/3;background-position:center 35%}
  .about{grid-template-columns:1fr;gap:28px}
  .about-side{display:grid;grid-template-columns:auto 1fr;column-gap:18px;align-items:center}
  .avatar{width:88px;height:88px;margin:0;grid-row:span 3}
  .stats{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .stat{padding:14px 12px} .stat b{font-size:24px} .stat span{font-size:12.5px}
  .gb{grid-template-columns:1fr;gap:28px}
  .section{padding:64px 0}
  .section-head{flex-direction:column;align-items:stretch}
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .viewer-box{grid-template-columns:1fr;grid-template-rows:50vh auto;height:92vh;overflow:auto}
  .viewer-side{overflow:visible}
  .modal{padding:10px}
}
@media (max-width:480px){
  .wrap{padding:0 16px}
  .row2{grid-template-columns:1fr}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
}