/* DERNA Clinic — thermageflxseoul.com */
:root{
  --yellow:#FEF76B; --yellow-d:#F2E23A;
  --ink:#101010; --ink-2:#2b2b2b;
  --gray:#F6F6F4; --gray-2:#e9e9e5; --muted:#767670;
  --line:#e4e4de; --white:#fff;
  --max:1200px;
  --shadow:0 6px 30px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--white);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.logo{font-family:'Oswald',sans-serif;font-weight:600;letter-spacing:.01em;line-height:1.08;margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{font-family:'Oswald';text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;font-weight:600;color:var(--muted)}
.eyebrow.light{color:rgba(255,255,255,.85)}
.sec-h{font-size:clamp(1.5rem,3.4vw,2.3rem);text-transform:uppercase;letter-spacing:.02em;margin:0 0 1.1rem}
.sec-h.center{text-align:center}
.sec-sub{color:var(--muted);margin:-.6rem 0 1.4rem}
.lede{font-size:1.18rem;color:var(--ink-2);max-width:60ch}
.grid-2{display:grid;grid-template-columns:1fr 360px;gap:56px;align-items:start}

/* buttons */
.btn{display:inline-block;font-family:'Oswald';text-transform:uppercase;letter-spacing:.06em;font-weight:600;font-size:.92rem;padding:.85em 1.6em;border-radius:2px;transition:.18s;cursor:pointer;border:2px solid transparent;text-align:center}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;transform:translateY(-2px)}
.btn-yellow{background:var(--yellow);color:var(--ink);border-color:var(--yellow)}
.btn-yellow:hover{background:var(--yellow-d);border-color:var(--yellow-d)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost-l{background:transparent;border-color:#fff;color:#fff}
.btn-ghost-l:hover{background:#fff;color:var(--ink)}
.btn-full{display:block;width:100%;background:var(--ink);color:#fff}
.btn-full:hover{background:#000}

/* topbar */
.topbar{background:var(--ink);color:#fff;font-size:.8rem}
.tb-in{display:flex;justify-content:space-between;align-items:center;padding:8px 24px;max-width:var(--max);margin:0 auto}
.tb-wa{color:var(--yellow);font-weight:600}
/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:32px;padding:14px 24px;max-width:var(--max);margin:0 auto}
.logo{font-size:1.5rem;font-weight:700;letter-spacing:.04em;display:flex;gap:.35em;align-items:baseline}
.logo span{font-size:.62em;font-weight:500;color:var(--muted);letter-spacing:.22em}
.mainnav{margin-left:auto}
.mainnav>ul{display:flex;list-style:none;gap:6px;margin:0;padding:0}
.mainnav>ul>li>a{display:block;padding:10px 14px;font-family:'Oswald';text-transform:uppercase;font-size:.83rem;letter-spacing:.05em;font-weight:500;border-radius:2px}
.mainnav>ul>li>a:hover{background:var(--gray)}
.has-mega{position:static}
.mega{position:absolute;left:0;right:0;top:100%;background:#fff;border-top:2px solid var(--yellow);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s}
.has-mega:hover .mega{opacity:1;visibility:visible;transform:none}
.mega-in{max-width:var(--max);margin:0 auto;padding:28px 24px;display:flex;gap:44px}
.mm-col{display:flex;flex-direction:column;gap:2px;min-width:180px}
.mm-h{font-family:'Oswald';text-transform:uppercase;font-size:.72rem;letter-spacing:.14em;color:var(--muted);margin-bottom:8px}
.mm-col a{font-size:.92rem;padding:4px 0;color:var(--ink-2)}
.mm-col a:hover{color:var(--ink);padding-left:4px;transition:.12s}
.book-btn{background:var(--yellow);color:var(--ink);font-family:'Oswald';text-transform:uppercase;font-weight:600;font-size:.83rem;letter-spacing:.05em;padding:11px 20px;border-radius:2px}
.book-btn:hover{background:var(--yellow-d)}
.burger{display:none;background:none;border:none;font-size:1.7rem;cursor:pointer}

/* home hero */
.home-hero{position:relative;min-height:82vh;display:flex;align-items:center;overflow:hidden}
.hh-img{position:absolute;inset:0}
.hh-img img{width:100%;height:100%;object-fit:cover}
.hh-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(0,0,0,.72) 0%,rgba(0,0,0,.4) 45%,rgba(0,0,0,.12) 100%)}
.hh-in{position:relative;color:#fff;padding-top:60px;padding-bottom:60px}
.hh-in h1{font-size:clamp(2.6rem,6vw,4.6rem);font-weight:700;text-transform:uppercase;margin:.5rem 0 1.1rem}
.hh-in p{font-size:1.2rem;max-width:52ch;color:rgba(255,255,255,.92)}
.hh-btns{display:flex;gap:14px;margin:1.8rem 0 2rem;flex-wrap:wrap}
.hh-facts{display:flex;gap:26px;flex-wrap:wrap;font-size:.9rem;color:rgba(255,255,255,.9);border-top:1px solid rgba(255,255,255,.25);padding-top:18px;max-width:640px}

/* flagship */
.flagship{background:var(--ink);color:#fff}
.flag-in{display:grid;grid-template-columns:1.5fr 1fr;gap:56px;padding:72px 24px;align-items:center}
.flag-txt h2{font-size:clamp(1.8rem,3.6vw,2.7rem);text-transform:uppercase;margin:.6rem 0 1rem}
.flag-txt p{color:rgba(255,255,255,.82);font-size:1.05rem}
.flag-txt .tick li{color:rgba(255,255,255,.9)}
.flag-txt .tick li:before{color:var(--yellow)}
.flag-txt .btn-dark{background:var(--yellow);color:var(--ink)}
.flag-txt .btn-dark:hover{background:var(--yellow-d)}
.flag-price{background:#1c1c1c;border:1px solid #2e2e2e;border-top:3px solid var(--yellow);padding:34px;border-radius:3px;text-align:center}
.flag-price h3{font-size:.85rem;text-transform:uppercase;letter-spacing:.14em;color:var(--muted);font-weight:500}
.big-price{font-family:'Oswald';font-size:2.8rem;font-weight:700;color:var(--yellow);margin:.2rem 0}
.flag-price>p{color:var(--muted);font-size:.86rem;margin:.3rem 0 1.4rem}

/* section spacing */
.home-sig,.home-hubs,.why-derna{padding:72px 0}
.home-hubs{background:var(--gray)}
/* product grid */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--gray-2)}
.pcard-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--gray)}
.pcard-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.pcard:hover .pcard-img img{transform:scale(1.05)}
.c-flag,.flag{position:absolute}
.c-flag{top:10px;left:10px;background:var(--yellow);color:var(--ink);font-family:'Oswald';text-transform:uppercase;font-size:.66rem;letter-spacing:.08em;font-weight:600;padding:4px 9px;border-radius:2px}
.pcard-b{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.pcard-b h3{font-size:1.18rem;text-transform:uppercase;margin-bottom:.35rem}
.pcard-b p{font-size:.9rem;color:var(--muted);flex:1;line-height:1.5}
.pcard-link{font-family:'Oswald';text-transform:uppercase;font-size:.78rem;letter-spacing:.06em;color:var(--ink);margin-top:12px;font-weight:600}
.pcard:hover .pcard-link{color:var(--yellow-d)}

/* hub cards home */
.hubgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.hubcard{background:#fff;border:1px solid var(--line);border-left:4px solid var(--yellow);padding:34px 30px;border-radius:4px;transition:.2s;display:flex;flex-direction:column}
.hubcard:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.hc-count{font-family:'Oswald';text-transform:uppercase;font-size:.72rem;letter-spacing:.1em;color:var(--muted)}
.hubcard h3{font-size:1.5rem;text-transform:uppercase;margin:.5rem 0 .5rem}
.hubcard p{color:var(--muted);font-size:.94rem;flex:1}
.hubcard .pcard-link{margin-top:16px}

/* why derna */
.wd-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.wd{padding:26px 22px;background:var(--gray);border-radius:4px;border-top:3px solid var(--yellow)}
.wd b{font-family:'Oswald';text-transform:uppercase;font-size:1.05rem;display:block;margin-bottom:.4rem}
.wd p{font-size:.9rem;color:var(--muted);margin:0}

/* lists */
ul.tick,ul.dot{list-style:none;padding:0;margin:1rem 0}
ul.tick li{position:relative;padding:6px 0 6px 30px;border-bottom:1px solid var(--line)}
ul.tick li:before{content:"\2713";position:absolute;left:0;top:6px;color:var(--yellow-d);font-weight:700}
ul.dot li{position:relative;padding:5px 0 5px 22px}
ul.dot li:before{content:"";position:absolute;left:0;top:14px;width:7px;height:7px;background:var(--yellow);border-radius:50%}

/* hub page */
.hub-hero{background:var(--gray);padding:64px 0 48px;border-bottom:1px solid var(--line)}
.hub-hero h1{font-size:clamp(2.2rem,5vw,3.4rem);text-transform:uppercase;margin:.5rem 0}
.hub-hero p{font-size:1.15rem;color:var(--muted)}
.hub-sec{padding:52px 0}
.hub-sec+.hub-sec{border-top:1px solid var(--line)}

/* procedure hero */
.p-hero{background:var(--gray);border-bottom:1px solid var(--line)}
.p-hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:52px 24px}
.crumb{font-family:'Oswald';text-transform:uppercase;font-size:.74rem;letter-spacing:.1em;color:var(--muted)}
.flag{position:static;display:inline-block;background:var(--yellow);color:var(--ink);font-family:'Oswald';text-transform:uppercase;font-size:.7rem;letter-spacing:.08em;font-weight:600;padding:4px 10px;border-radius:2px;margin-left:10px}
.p-hero-txt h1{font-size:clamp(2.2rem,5vw,3.4rem);text-transform:uppercase;margin:.6rem 0 .7rem}
.p-hero-txt .lede{font-size:1.1rem;margin-bottom:1.4rem}
.p-hero-img img{border-radius:5px;box-shadow:var(--shadow);width:100%;aspect-ratio:4/3;object-fit:cover}
.chips{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 1.6rem}
.chip{background:#fff;border:1px solid var(--line);border-radius:3px;padding:10px 14px;min-width:120px}
.chip span{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-family:'Oswald'}
.chip b{font-size:.86rem;font-weight:500}

/* procedure body */
.p-body{padding:60px 0}
.p-main .sec-h{margin-top:2.2rem}
.p-main .sec-h:first-child{margin-top:0}
.p-main p{color:var(--ink-2)}
.eq-strip{margin:1.6rem 0;background:var(--gray);border-radius:4px;padding:20px;text-align:center}
.eq-strip img{max-height:280px;margin:0 auto;object-fit:contain}
/* price card */
.p-side{position:sticky;top:100px}
.price-card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--yellow);border-radius:4px;padding:26px}
.price-card h3{font-size:1.15rem;text-transform:uppercase;margin-bottom:1rem}
.ptab{width:100%;border-collapse:collapse;font-size:.9rem}
.ptab td{padding:9px 0;border-bottom:1px solid var(--line);vertical-align:top}
.ptab td.pr{text-align:right;font-weight:600;white-space:nowrap;font-family:'Oswald';padding-left:14px}
.vat{font-size:.76rem;color:var(--muted);margin:1rem 0}
.side-facts{margin-top:20px;background:var(--gray);border-radius:4px;padding:6px 18px}
.side-facts>div{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
.side-facts>div:last-child{border:none}
.side-facts span{color:var(--muted);font-size:.82rem}
.side-facts b{font-size:.82rem;font-weight:500;text-align:right}

/* before after */
.ba{padding:56px 0;background:var(--gray)}
.ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:760px;margin:0 auto}
.ba-grid figure{margin:0;border-radius:4px;overflow:hidden;background:#fff;border:1px solid var(--line)}
.ba-grid img{width:100%;aspect-ratio:1;object-fit:cover}
.ba-grid figcaption{font-family:'Oswald';text-transform:uppercase;letter-spacing:.1em;font-size:.8rem;text-align:center;padding:10px;background:var(--ink);color:#fff}

/* process */
.process{padding:60px 0;border-top:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:1.5rem}
.step{position:relative}
.step-n{font-family:'Oswald';font-size:1.6rem;font-weight:700;color:var(--yellow-d);display:block;line-height:1}
.step b{display:block;font-family:'Oswald';text-transform:uppercase;font-size:.92rem;margin:.5rem 0 .3rem}
.step p{font-size:.85rem;color:var(--muted);margin:0}

/* faq */
.faq{padding:56px 0;background:var(--gray)}
.faq-i{background:#fff;border:1px solid var(--line);border-radius:4px;margin-bottom:10px;padding:0}
.faq-i summary{cursor:pointer;padding:16px 20px;font-family:'Oswald';text-transform:uppercase;font-size:.95rem;letter-spacing:.02em;list-style:none;position:relative}
.faq-i summary::-webkit-details-marker{display:none}
.faq-i summary:after{content:"+";position:absolute;right:20px;color:var(--yellow-d);font-size:1.3rem}
.faq-i[open] summary:after{content:"\2013"}
.faq-i p{padding:0 20px 18px;margin:0;color:var(--ink-2);font-size:.94rem}

/* related */
.related{padding:56px 0}
.rel-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.rel-card{text-align:center}
.rel-card img{aspect-ratio:1;object-fit:cover;border-radius:4px;margin-bottom:8px;transition:.2s}
.rel-card:hover img{transform:translateY(-3px);box-shadow:var(--shadow)}
.rel-card span{font-family:'Oswald';text-transform:uppercase;font-size:.72rem;letter-spacing:.03em;color:var(--ink-2)}

/* cta band */
.cta-band{background:var(--yellow);padding:56px 0;text-align:center}
.cta-band h2{font-size:clamp(1.6rem,3.5vw,2.4rem);text-transform:uppercase}
.cta-band p{color:var(--ink-2);margin:.6rem 0 1.5rem}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* about / info */
.ab-hero{padding:60px 0 40px;border-bottom:1px solid var(--line)}
.ab-hero h1{font-size:clamp(2.2rem,5vw,3.4rem);text-transform:uppercase;margin:.5rem 0}
.ab-body,.doc-body,.price-body,.contact-body{padding:56px 0}
.info-card{background:var(--gray);border-top:3px solid var(--yellow);border-radius:4px;padding:28px}
.info-card h3{text-transform:uppercase;font-size:1.15rem;margin-bottom:1rem}
.info-card dl{margin:0 0 1.4rem}
.info-card dt{font-family:'Oswald';text-transform:uppercase;font-size:.72rem;letter-spacing:.08em;color:var(--muted);margin-top:.8rem}
.info-card dd{margin:.15rem 0 0;font-size:.94rem}
.hrs-note{font-size:.84rem;color:var(--muted)}
.gallery{padding:56px 0;background:var(--gray)}
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gal-grid img{aspect-ratio:4/3;object-fit:cover;border-radius:4px}

/* doctors */
.doc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.doc-card{background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.doc-img{aspect-ratio:3/4;background:var(--gray);overflow:hidden}
.doc-img img{width:100%;height:100%;object-fit:cover;object-position:top}
.doc-b{padding:20px}
.doc-b h3{font-size:1.3rem;text-transform:uppercase}
.doc-title{font-size:.86rem;color:var(--muted);display:block;margin:.2rem 0}
.doc-lang{display:inline-block;background:var(--yellow);color:var(--ink);font-family:'Oswald';text-transform:uppercase;font-size:.66rem;letter-spacing:.06em;padding:3px 8px;border-radius:2px;margin:.3rem 0}
.doc-b ul{list-style:none;padding:0;margin:.8rem 0 0}
.doc-b li{font-size:.85rem;color:var(--ink-2);padding:3px 0 3px 14px;position:relative}
.doc-b li:before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;background:var(--yellow-d);border-radius:50%}

/* pricing table page */
.price-sec{margin-bottom:44px}
.ptab.big td{padding:11px 6px}
.pt-grp td{background:var(--ink);color:#fff;font-family:'Oswald';text-transform:uppercase;letter-spacing:.06em;font-size:.9rem;padding:12px!important;border:none}
.pt-proc td{background:var(--gray);font-family:'Oswald';text-transform:uppercase;font-size:.82rem;padding-top:14px!important}
.pt-proc a:hover{color:var(--yellow-d)}
.price-note{font-size:.85rem;color:var(--muted);border-top:1px solid var(--line);padding-top:16px}

/* contact */
.contact-actions{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:1rem 0 2rem}
.cc-btn{border:1px solid var(--line);border-radius:4px;padding:18px 20px;transition:.18s}
.cc-btn:hover{border-color:var(--ink);transform:translateY(-2px)}
.cc-btn.wa{border-color:var(--yellow);background:#fffef0}
.cc-btn b{font-family:'Oswald';text-transform:uppercase;display:block;font-size:.9rem}
.cc-btn span{font-size:.9rem;color:var(--muted)}

/* footer */
.ftr{background:var(--ink);color:rgba(255,255,255,.72);padding:60px 0 0}
.ftr-in{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.logo-ftr{color:#fff;margin-bottom:1rem}
.logo-ftr span{color:var(--muted)}
.ftr .tag{font-size:.92rem;line-height:1.7}
.ftr-wa{display:inline-block;margin-top:1rem;color:var(--yellow);font-family:'Oswald';text-transform:uppercase;font-size:.82rem;letter-spacing:.05em}
.ftr-col h4{font-family:'Oswald';text-transform:uppercase;font-size:.82rem;letter-spacing:.1em;color:#fff;margin-bottom:1rem}
.ftr-col a{display:block;font-size:.9rem;padding:4px 0;color:rgba(255,255,255,.72)}
.ftr-col a:hover{color:var(--yellow)}
.ftr-col p{font-size:.88rem;line-height:1.7;margin:.4rem 0}
.ftr-col .hrs{color:var(--yellow)}
.ftr-legal{border-top:1px solid #262626;margin-top:44px;padding:24px 0;font-size:.78rem;color:var(--muted)}
.ftr-legal .disc{margin-top:.6rem;font-size:.74rem}
/* wa float */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60}
.wa-float a{background:#25D366;color:#fff;font-family:'Oswald';text-transform:uppercase;font-size:.82rem;letter-spacing:.03em;padding:13px 20px;border-radius:40px;box-shadow:0 6px 20px rgba(0,0,0,.25);display:block}

/* responsive */
@media(max-width:960px){
  .mainnav,.book-btn{display:none}
  .burger{display:block;margin-left:auto}
  body.nav-open .mainnav{display:block;position:fixed;inset:56px 0 0;background:#fff;overflow-y:auto;z-index:40}
  body.nav-open .mainnav>ul{flex-direction:column;gap:0;padding:10px 0}
  body.nav-open .mainnav>ul>li{border-bottom:1px solid var(--line)}
  .mega{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;max-height:0;overflow:hidden;transition:max-height .25s}
  .has-mega.open .mega{max-height:800px}
  .mega-in{flex-direction:column;gap:16px;padding:0 24px 16px}
  .grid-2,.flag-in,.p-hero-in{grid-template-columns:1fr;gap:32px}
  .p-side{position:static}
  .pgrid,.hubgrid,.wd-grid,.doc-grid,.gal-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:repeat(3,1fr)}
  .contact-actions{grid-template-columns:1fr}
  .ftr-in{grid-template-columns:1fr 1fr;gap:28px}
  .tb-in span{display:none}
}
@media(max-width:560px){
  .pgrid,.hubgrid,.wd-grid,.doc-grid,.gal-grid,.ba-grid,.steps{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .ftr-in{grid-template-columns:1fr}
  .hh-facts{gap:12px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}
/* patient resources (§5-2) — 회색 소형, 크롤용 */
.patient-res{margin-top:14px;font-size:.7rem;line-height:1.7;color:#3a3a3a}
.patient-res a{color:#3a3a3a;margin-right:10px;text-decoration:none}
.patient-res a:hover{color:var(--muted)}