:root{--bg:#0a0e1a;--bg2:#0d1220;--surface:#131a2b;--surface2:#1a2236;--border:#243049;--text:#e8eef7;--muted:#9aa7bd;--purple:#a78bfa;--purple2:#8b5cf6;--cyan:#22d3ee;--teal:#2dd4bf;--danger:#f87171;--success:#34d399;--radius:14px;--rs:9px;--shadow:0 18px 50px -20px rgba(0,0,0,.7);--maxw:1180px;--mono:"JetBrains Mono",monospace;--sans:"Noto Sans KR",system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);background:radial-gradient(1100px 600px at 80% -8%,rgba(139,92,246,.14),transparent 60%),radial-gradient(900px 500px at 0 0,rgba(34,211,238,.1),transparent 55%),var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--cyan);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:3px}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.25;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.4vw,3.4rem)}h2{font-size:clamp(1.5rem,3vw,2.2rem)}h3{font-size:1.25rem}
p{color:#d6deea}.container{max-width:var(--maxw);margin:0 auto;padding:0 22px;width:100%}
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(10,14,26,.78);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:18px;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.02em;color:var(--text);font-size:1.05rem}.brand:hover{text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:9px;background:conic-gradient(from 210deg,var(--purple),var(--cyan),var(--teal),var(--purple));display:grid;place-items:center;color:#0a0e1a;font-family:var(--mono);font-weight:800;font-size:.95rem;box-shadow:0 0 22px -6px var(--purple2)}
.brand small{color:var(--muted);font-weight:500;font-size:.72rem;display:block;letter-spacing:.04em}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav a{color:var(--muted);padding:8px 12px;border-radius:8px;font-size:.92rem;font-weight:500}
.nav a:hover{color:var(--text);background:var(--surface);text-decoration:none}
.nav a.active{color:var(--text);background:linear-gradient(180deg,rgba(167,139,250,.18),rgba(34,211,238,.08));border:1px solid var(--border)}
.search-box{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:6px 12px;margin-left:8px;position:relative}
.search-box input{background:transparent;border:0;color:var(--text);outline:none;width:150px;font-size:.88rem;font-family:var(--sans)}
.search-box svg{color:var(--muted);flex:none}
.search-results{position:absolute;top:56px;right:0;width:340px;max-width:calc(100vw - 44px);background:var(--surface2);border:1px solid var(--border);border-radius:var(--rs);box-shadow:var(--shadow);overflow:hidden;display:none;z-index:60}
.search-results.open{display:block}
.search-results a{display:block;padding:11px 14px;color:var(--text);border-bottom:1px solid var(--border);font-size:.9rem}
.search-results a:last-child{border-bottom:0}.search-results a:hover{background:var(--surface);text-decoration:none}
.search-results a small{color:var(--muted);display:block;font-size:.76rem}.search-results .empty{padding:14px;color:var(--muted);font-size:.88rem}
.nav-toggle{display:none;background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:9px;width:42px;height:42px;cursor:pointer}
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 22px;border-radius:999px;font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;font-family:var(--sans)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(120deg,var(--purple2),var(--cyan));color:#07101a;box-shadow:0 10px 30px -10px var(--purple2)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn-ghost:hover{background:var(--surface)}
.hero{position:relative;padding:78px 0 64px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.78rem;color:var(--cyan);background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);padding:5px 12px;border-radius:999px;letter-spacing:.06em}
.hero h1{margin:18px 0 16px}.hero h1 .grad{background:linear-gradient(110deg,var(--purple),var(--cyan) 55%,var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:1.12rem;color:var(--muted);max-width:52ch}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-visual{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);aspect-ratio:4/3}
.hero-visual img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.78)}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(139,92,246,.42),transparent 45%,rgba(34,211,238,.34));mix-blend-mode:screen}
.hero-visual .chip{position:absolute;left:16px;bottom:16px;font-family:var(--mono);font-size:.78rem;color:var(--text);background:rgba(10,14,26,.7);border:1px solid var(--border);padding:7px 12px;border-radius:8px;backdrop-filter:blur(6px)}
.section{padding:64px 0}.section-head{max-width:64ch;margin-bottom:34px}
.section-head .label{font-family:var(--mono);color:var(--teal);font-size:.8rem;letter-spacing:.08em}
.section-head h2{margin:8px 0 12px}.section-head p{color:var(--muted)}
.grid{display:grid;gap:22px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:linear-gradient(180deg,var(--surface),var(--bg2));border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);border-color:rgba(167,139,250,.5);box-shadow:var(--shadow)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.8) brightness(.8)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,14,26,.7))}
.card-media .tag{position:absolute;top:12px;left:12px;font-family:var(--mono);font-size:.72rem;color:var(--cyan);background:rgba(10,14,26,.7);border:1px solid var(--border);padding:4px 9px;border-radius:6px}
.card-body{padding:18px 18px 22px;flex:1;display:flex;flex-direction:column}
.card-body h3{margin:0 0 8px}.card-body p{color:var(--muted);font-size:.95rem;margin:0 0 16px;flex:1}
.card-link{font-weight:600;font-size:.9rem;color:var(--cyan)}.card-link::after{content:" →"}
.article-hero{padding:56px 0 24px}
.article-meta{display:flex;gap:14px;align-items:center;color:var(--muted);font-size:.88rem;margin-bottom:14px;flex-wrap:wrap}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--muted)}
.article-body{max-width:760px;margin:0 auto}
.article-body h2{margin:38px 0 12px}.article-body h3{margin:28px 0 10px}.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px}.article-body li{margin-bottom:8px;color:#d6deea}
.article-body code{font-family:var(--mono);background:var(--surface);border:1px solid var(--border);padding:2px 7px;border-radius:6px;font-size:.88em;color:var(--teal)}
.callout{background:linear-gradient(180deg,rgba(167,139,250,.08),rgba(34,211,238,.05));border:1px solid var(--border);border-left:3px solid var(--purple);border-radius:var(--rs);padding:16px 18px;margin:22px 0}
.callout strong{color:var(--cyan)}.related{margin-top:56px;border-top:1px solid var(--border);padding-top:36px}
.glossary-list{display:grid;gap:14px}.gloss-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--rs);padding:18px 20px}
.gloss-item h3{margin:0 0 6px;font-family:var(--mono);color:var(--cyan);font-size:1.05rem}.gloss-item p{margin:0;color:var(--muted)}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.filter-btn{background:var(--surface);border:1px solid var(--border);color:var(--muted);padding:8px 16px;border-radius:999px;font-size:.88rem;cursor:pointer;font-family:var(--sans)}
.filter-btn:hover{color:var(--text)}.filter-btn.active{color:var(--text);border-color:var(--purple);background:rgba(167,139,250,.12)}
.form{max-width:620px}.field{margin-bottom:18px}.field label{display:block;font-weight:600;margin-bottom:7px;font-size:.92rem}
.field input,.field textarea,.field select{width:100%;background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:var(--rs);padding:12px 14px;font-family:var(--sans);font-size:.95rem;outline:none}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(167,139,250,.18)}
.field .err{color:var(--danger);font-size:.82rem;margin-top:6px;min-height:1em}
.form-msg{margin-top:16px;padding:14px 16px;border-radius:var(--rs);display:none}
.form-msg.ok{display:block;background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.4);color:var(--success)}
.form-msg.bad{display:block;background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.4);color:var(--danger)}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.info-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.info-card h3{margin:0 0 12px;color:var(--cyan);font-family:var(--mono);font-size:1rem}.info-card p{margin:0 0 6px;color:#d6deea}
.price-row{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--border)}
.price-row span:first-child{color:var(--muted)}.price-row span:last-child{font-weight:700;color:var(--text)}
.prose{max-width:760px}.prose p{margin:0 0 18px;color:#d6deea}.prose h2{margin:38px 0 12px}.prose h3{margin:28px 0 10px}
.prose ul{padding-left:22px}.prose li{margin-bottom:8px;color:#d6deea}
.breadcrumbs{color:var(--muted);font-size:.85rem;margin:18px 0}.breadcrumbs a{color:var(--muted)}.breadcrumbs a:hover{color:var(--cyan)}
.page-hero{padding:56px 0 30px}.page-hero h1{margin:10px 0 14px}.page-hero p{color:var(--muted);max-width:62ch}
footer.site-footer{margin-top:auto;border-top:1px solid var(--border);background:var(--bg2);padding:42px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;margin-bottom:28px}
.footer-grid h4{font-size:.85rem;color:var(--cyan);font-family:var(--mono);letter-spacing:.05em;margin:0 0 14px}
.footer-grid a{display:block;color:var(--muted);font-size:.9rem;padding:4px 0}.footer-grid a:hover{color:var(--text);text-decoration:none}
.footer-grid p{color:var(--muted);font-size:.9rem}
.mandatory-footer{border-top:1px solid var(--border);margin-top:18px;padding-top:18px;color:var(--muted);font-size:.84rem;font-style:italic}
.footer-bottom{border-top:1px solid var(--border);padding-top:18px;color:var(--muted);font-size:.82rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--surface2);border-top:1px solid var(--border);box-shadow:0 -10px 40px -10px rgba(0,0,0,.6);transform:translateY(110%);transition:transform .35s ease;padding:18px 0}
.cookie-banner.show{transform:translateY(0)}.cookie-inner{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cookie-inner p{margin:0;color:var(--muted);font-size:.9rem;flex:1;min-width:240px}.cookie-inner .btns{display:flex;gap:10px}
.error-box{text-align:center;padding:80px 0}
.error-box .code{font-family:var(--mono);font-size:6rem;font-weight:800;background:linear-gradient(110deg,var(--purple),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.tag-list{display:flex;gap:8px;flex-wrap:wrap}
.tag-list span{font-family:var(--mono);font-size:.74rem;color:var(--teal);background:rgba(45,212,191,.08);border:1px solid rgba(45,212,191,.25);padding:4px 10px;border-radius:999px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:relative}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-14px;left:22px;width:30px;height:30px;border-radius:50%;background:linear-gradient(120deg,var(--purple2),var(--cyan));color:#07101a;display:grid;place-items:center;font-weight:800;font-family:var(--mono)}
.step h3{margin:6px 0 8px}.step p{margin:0;color:var(--muted);font-size:.95rem}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:var(--rs);padding:16px 18px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--cyan);font-family:var(--mono)}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:12px 0 0;color:var(--muted)}
.muted{color:var(--muted)}.center{text-align:center}
.split{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
@media(max-width:900px){.hero-grid,.grid-3,.grid-4,.info-grid,.split,.steps,.footer-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.nav{display:none}.nav.open{display:flex;position:absolute;top:66px;left:0;right:0;flex-direction:column;background:var(--surface2);border-bottom:1px solid var(--border);padding:12px;align-items:stretch}.nav.open a{padding:12px}.nav-toggle{display:block}.search-box{margin-left:0}.search-results{right:auto;left:0;width:100%}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}