:root{
  --bg:#f6f7f9;--surface:#fff;--ink:#14161a;--muted:#5d6470;--line:#e3e6eb;
  --brand:#2457d6;--brand-ink:#fff;--ok:#1b8a4b;--warn:#b25d00;--icon-btn:#0000000d;
  --radius:12px;--shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px rgba(16,24,40,.06);
}
:root[data-theme=dark]{--bg:#0f1115;--surface:#171a20;--ink:#e9ecf1;--muted:#9aa3b2;--line:#262b34;--brand:#5b8cff;--icon-btn:#ffffff12;--shadow:none;color-scheme:dark}
*{box-sizing:border-box}
html,body{margin:0}
body{font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.top{background:var(--surface);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo svg{width:26px;height:26px}
nav{display:flex;align-items:center}
nav a{color:var(--muted);margin-left:22px;font-size:14px}
nav a.btn{color:var(--brand-ink)}
.btn{display:inline-block;background:var(--brand);color:var(--brand-ink);border:0;border-radius:8px;padding:10px 18px;font-weight:600;font-size:14px;cursor:pointer}
.btn:hover{filter:brightness(1.07);text-decoration:none}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}
.btn.big{padding:14px 26px;font-size:16px}
.hero{padding:64px 0 40px;text-align:center}
.hero h1{font-size:40px;line-height:1.15;margin:0 0 14px;letter-spacing:-.02em}
.hero p.lead{color:var(--muted);font-size:18px;max-width:620px;margin:0 auto 32px}
.drop{display:block;cursor:pointer;max-width:620px;margin:0 auto;background:var(--surface);border:2px dashed var(--line);border-radius:var(--radius);padding:38px 24px;box-shadow:var(--shadow)}
.drop.over{border-color:var(--brand)}
.drop svg{width:44px;height:44px;color:var(--brand)}
.drop .hint{color:var(--muted);font-size:13px;margin-top:10px}
.notice{display:none;margin:18px auto 0;max-width:620px;padding:12px 16px;border-radius:8px;background:rgba(178,93,0,.08);color:var(--warn);font-size:14px}
.notice.show{display:block}
.stats{display:flex;justify-content:center;gap:48px;margin:44px 0 8px;flex-wrap:wrap}
.stats div{text-align:center}
.stats b{display:block;font-size:24px}
.stats span{color:var(--muted);font-size:13px}
section{padding:40px 0}
section h2{font-size:26px;margin:0 0 22px;text-align:center}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card h3{margin:0 0 6px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:14px}
.price{font-size:30px;font-weight:700;margin:8px 0}
.price small{font-size:14px;color:var(--muted);font-weight:400}
.card ul{padding-left:18px;color:var(--muted);font-size:14px;margin:12px 0 18px}
.card.featured{border-color:var(--brand)}
table.files{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.files th,table.files td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
table.files th{color:var(--muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
table.files tr:last-child td{border-bottom:0}
table.files td.num{text-align:right;color:var(--muted);white-space:nowrap}
.filebox{max-width:640px;margin:56px auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.filebox .fname{font-size:20px;font-weight:600;word-break:break-all;margin:0 0 6px}
.meta{display:grid;grid-template-columns:140px 1fr;gap:8px 12px;font-size:14px;margin:22px 0 26px}
.meta dt{color:var(--muted)}
.meta dd{margin:0;word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}
.scan{color:var(--ok);font-size:13px;margin-top:14px}
.form{max-width:400px;margin:64px auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form h1{font-size:22px;margin:0 0 18px}
.form label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
.form input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font-size:15px}
.form .btn{width:100%;margin-top:20px}
.form .err{display:none;color:#c0392b;font-size:13px;margin-top:12px}
.form .err.show{display:block}
.form .alt{text-align:center;font-size:13px;color:var(--muted);margin-top:16px}
.legal{max-width:760px;margin:48px auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px 36px}
.legal h1{margin-top:0}
.legal h2{font-size:18px;margin-top:28px}
.legal p,.legal li{color:var(--muted)}
footer{border-top:1px solid var(--line);margin-top:40px;padding:28px 0;color:var(--muted);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{color:var(--muted);margin-left:18px}
@media (max-width:760px){
  .grid3{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  nav a:not(.btn){display:none}
  table.files td.hide-sm,table.files th.hide-sm{display:none}
  .meta{grid-template-columns:1fr}
}
/* theme toggle */
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:9px;margin-left:18px;border:0;border-radius:50px;background:var(--icon-btn);color:var(--ink);cursor:pointer;vertical-align:middle}
.icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.theme-icon{display:block;overflow:visible;transition:transform .15s}
.theme-icon g{transform-origin:12px 12px;transition:transform .5s cubic-bezier(.22,1,.36,1),opacity .3s}
.theme-icon .sun{opacity:0;transform:rotate(-90deg) scale(.4)}
:root[data-theme=dark] .theme-icon .moon{opacity:0;transform:rotate(90deg) scale(.4)}
:root[data-theme=dark] .theme-icon .sun{opacity:1;transform:none}
.icon-btn:active .theme-icon{transform:scale(.9)}
html.theme-vt::view-transition-old(root),html.theme-vt::view-transition-new(root){animation:none;mix-blend-mode:normal}
@media (prefers-reduced-motion:reduce){.theme-icon,.theme-icon g{transition:none}}