@font-face{font-family:"Inter Fallback";src:local("Arial");ascent-override:90.2%;descent-override:22.48%;line-gap-override:0%;size-adjust:107.4%}
:root{
  --bg:#f6f7fb;--bg-soft:#fff;--card:#fff;--card-2:#f1f3f9;
  --text:#1a1c27;--text-soft:#5b6072;--text-dim:#8a8fa3;--border:#e6e8f0;
  --accent:#6366f1;--accent-2:#8b5cf6;--accent-3:#ec4899;--ok:#10b981;--warn:#f59e0b;--bad:#ef4444;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --sans:"Inter","Inter Fallback","Noto Sans KR",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --shadow:0 1px 2px rgba(20,22,40,.04),0 8px 24px rgba(20,22,40,.06);
  --shadow-lg:0 12px 40px rgba(20,22,40,.12);--radius:18px;--maxw:1120px;
}
[data-theme="dark"]{
  --bg:#0c0e16;--bg-soft:#11131e;--card:#161927;--card-2:#1d2132;
  --text:#eef0f8;--text-soft:#aab0c6;--text-dim:#7a8099;--border:#262b3d;
  --accent:#818cf8;--accent-2:#a78bfa;--accent-3:#f472b6;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 16px 50px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--text);line-height:1.55;
  background:
    radial-gradient(1100px 560px at 82% -10%,color-mix(in srgb,var(--accent-2) 16%,transparent),transparent 60%),
    radial-gradient(900px 480px at -10% 0%,color-mix(in srgb,var(--accent-3) 12%,transparent),transparent 55%),
    var(--bg);
  background-attachment:fixed;-webkit-font-smoothing:antialiased;
}
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:22px}
a{color:var(--accent)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip-link:focus{left:12px;top:12px}
.site-header{position:sticky;top:0;z-index:40;backdrop-filter:saturate(140%) blur(12px);background:color-mix(in srgb,var(--bg-soft) 75%,transparent);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:14px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:800;font-size:1.15rem}
.brand-mark{display:inline-grid;place-items:center;min-width:38px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-3));color:#fff;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase}
.header-actions{display:flex;align-items:center;gap:10px}
.lang-select,.theme-toggle{border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:12px;height:40px;font-family:var(--sans);font-weight:700;cursor:pointer}
.lang-select{appearance:none;-webkit-appearance:none;padding:9px 30px 9px 12px;font-size:.88rem;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a8fa3' stroke-width='3' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}
.theme-toggle{min-width:58px;padding:0 12px;font-size:.82rem}
.hero{text-align:center;padding:clamp(36px,7vw,72px) 22px 18px}
.hero h1{font-size:clamp(2rem,5.5vw,3.5rem);line-height:1.06;letter-spacing:-.03em;margin:0 0 14px;font-weight:800}
.grad{background:linear-gradient(110deg,var(--accent),var(--accent-2) 45%,var(--accent-3));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{max-width:680px;margin:0 auto;color:var(--text-soft);font-size:clamp(1rem,2.2vw,1.12rem)}
.app{padding:28px 22px 8px}
.tool-grid{max-width:var(--maxw);margin-inline:auto;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);gap:18px}
.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.drop-zone{display:grid;place-items:center;text-align:center;min-height:220px;border:1.5px dashed color-mix(in srgb,var(--accent) 38%,var(--border));border-radius:16px;background:color-mix(in srgb,var(--accent) 6%,var(--card-2));cursor:pointer;padding:24px;transition:border-color .18s,background .18s}
.drop-zone:hover,.drop-zone.drag{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,var(--card-2))}
.drop-zone input{position:absolute;inline-size:1px;block-size:1px;opacity:0;pointer-events:none}
.drop-title{display:block;font-weight:800;font-size:1.18rem;margin-bottom:6px}
.drop-sub{display:block;color:var(--text-soft);font-size:.92rem;max-width:360px}
.preview-card{display:grid;grid-template-columns:84px minmax(0,1fr);gap:14px;align-items:center;margin-top:16px;padding:12px;border:1px solid var(--border);border-radius:14px;background:var(--card-2)}
.preview-card img{width:84px;height:84px;object-fit:cover;border-radius:10px;background:var(--bg)}
.preview-card strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.preview-card span{display:block;color:var(--text-dim);font-size:.85rem;font-family:var(--mono);margin-top:3px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border:1px solid var(--border);background:var(--card-2);color:var(--text);padding:0 16px;border-radius:11px;font-weight:750;font-size:.92rem;cursor:pointer;font-family:var(--sans);transition:all .15s;text-decoration:none}
.btn:hover:not(:disabled){border-color:var(--accent);transform:translateY(-1px)}
.btn:disabled{opacity:.48;cursor:not-allowed}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-color:transparent}
.btn-small{min-height:38px;font-size:.84rem}
.status{font-size:.88rem;color:var(--text-soft);margin:12px 0 0}
.section-head{margin-bottom:14px}
.section-head.row{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.section-head h2{font-size:1.3rem;margin:5px 0 0;letter-spacing:-.02em}
.eyebrow{display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.risk-card{border:1px solid var(--border);background:var(--card-2);border-radius:15px;padding:16px}
.risk-card strong{display:block;font-size:1.05rem;margin-bottom:5px}
.risk-card p{margin:0;color:var(--text-soft);line-height:1.55}
.risk-card.good{border-color:color-mix(in srgb,var(--ok) 42%,var(--border))}
.risk-card.warn{border-color:color-mix(in srgb,var(--warn) 48%,var(--border))}
.risk-card.bad{border-color:color-mix(in srgb,var(--bad) 42%,var(--border))}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid var(--border);border-radius:999px;background:var(--bg-soft);font-size:.82rem;font-weight:750;color:var(--text-soft)}
.chip.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 36%,var(--border))}
.chip.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 42%,var(--border))}
.chip.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 38%,var(--border))}
.metadata-panel{max-width:var(--maxw);margin:18px auto 0}
.metadata-list{display:grid;gap:8px}
.metadata-list.empty{color:var(--text-dim);padding:18px;border:1px dashed var(--border);border-radius:14px;background:var(--card-2)}
.meta-row{display:grid;grid-template-columns:minmax(150px,.42fr) minmax(0,1fr);gap:12px;align-items:start;padding:12px 14px;border:1px solid var(--border);border-radius:12px;background:var(--bg-soft)}
.meta-key{font-weight:800;color:var(--text);overflow-wrap:anywhere}
.meta-val{font-family:var(--mono);font-size:.87rem;color:var(--text-soft);overflow-wrap:anywhere;white-space:pre-wrap}
.meta-row.flag .meta-key,.meta-row.flag .meta-val{color:var(--bad)}
.content{max-width:780px;margin-inline:auto;padding:56px 22px 8px}
.content h2{font-size:clamp(1.5rem,4vw,2.1rem);letter-spacing:-.02em;margin:0 0 12px}
.content p{color:var(--text-soft);line-height:1.75;margin:0 0 14px}
.faq{padding-top:34px}
.faq-item{border:1px solid var(--border);border-radius:14px;background:var(--card);margin-bottom:10px;overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:16px 18px;font-weight:750;display:flex;justify-content:space-between;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:1.4rem;line-height:1}
.faq-item[open] summary::after{content:"-"}
.faq-a{padding:0 18px 18px}.faq-a p{margin:0;color:var(--text-soft)}
.site-footer{margin-top:44px;border-top:1px solid var(--border);padding:26px 0}
.footer-nav{display:flex;gap:8px 22px;justify-content:center;flex-wrap:wrap;margin-bottom:12px}
.footer-nav a{color:var(--text-soft);text-decoration:none;font-size:.88rem;font-weight:650}
.footer-nav a:hover{color:var(--accent)}
.site-footer p{text-align:center;color:var(--text-dim);font-size:.85rem;margin:0}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--text);color:var(--bg);padding:11px 20px;border-radius:12px;font-size:.88rem;font-weight:700;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:80}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:880px){.tool-grid{grid-template-columns:1fr}.section-head.row{align-items:stretch;flex-direction:column}.meta-row{grid-template-columns:1fr}.actions .btn{width:100%}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}