:root{
  --ink:#0b1220;
  --muted:#5f6b7a;
  --line:#e6e9ef;
  --line-2:#d3dae5;
  --accent:#3b6ef6;
  --accent-d:#2f5ce0;
  --bg:#ffffff;
  --soft:#f7f9fc;
  --ok:#1f9d55;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block}
.container{max-width:960px;margin:0 auto;padding:0 22px}

/* header */
.hdr{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:16px;letter-spacing:-.2px}
.nav{display:flex;gap:22px}
.nav a{color:var(--muted);font-size:14px}
.nav a:hover{color:var(--ink)}
.hdr-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.link{color:var(--muted);font-size:14px}
.link:hover{color:var(--ink)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:9px;padding:11px 18px;
  font:inherit;font-size:14.5px;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:#bfcadb}
.btn:disabled{opacity:.5;cursor:default}
.btn-primary:disabled{background:var(--accent)}
.btn-sm{padding:8px 14px;font-size:13.5px}

/* hero */
.hero{padding:56px 0 0;text-align:center}
h1{margin:0 0 10px;font-size:34px;line-height:1.15;letter-spacing:-1px;font-weight:700}
.lead{margin:0 auto 30px;color:var(--muted);font-size:16px;max-width:520px}

/* drop card */
.dropcard{
  border:1.5px dashed var(--line-2);border-radius:16px;background:var(--soft);
  padding:46px 24px;transition:border-color .15s,background .15s;cursor:pointer;
}
.dropcard:hover,.dropcard.over{border-color:var(--accent);background:#f3f7ff}
.dropcard-in{display:flex;flex-direction:column;align-items:center;gap:6px}
.upicon{width:30px;height:30px;stroke:var(--accent);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;margin-bottom:6px}
.drop-title{font-size:17px;font-weight:650}
.drop-sub{color:var(--muted);font-size:14px}
.dropcard .btn{margin-top:16px}
.drop-note{color:var(--muted);font-size:12.5px;margin-top:12px}

/* panel with files */
.panel{display:none;text-align:left;margin-top:16px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.panel.show{display:block}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--muted)}
.btn-clear{border:0;background:none;color:var(--muted);font:inherit;font-size:13px;cursor:pointer;padding:0}
.btn-clear:hover{color:#c0392b}
.list{max-height:230px;overflow:auto}
.row{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--line);font-size:13.5px}
.row:last-child{border-bottom:0}
.row .nm{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row .sz{color:var(--muted);font-size:12.5px;white-space:nowrap}
.row .rm{border:0;background:none;color:var(--muted);font-size:16px;line-height:1;cursor:pointer;padding:0 2px}
.row .rm:hover{color:#c0392b}
.panel-opts{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:12px 16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--muted)}
.opt{display:flex;align-items:center;gap:7px}
.opt select,.pwd{font:inherit;font-size:13.5px;color:var(--ink);border:1px solid var(--line-2);border-radius:8px;padding:7px 9px;background:#fff}
.pwd{width:170px}
.opt-check{cursor:pointer}
.panel-foot{display:flex;align-items:center;gap:12px;padding:12px 16px;border-top:1px solid var(--line);background:#fcfdff}
.sum{color:var(--muted);font-size:13px;margin-right:auto}
.terms{color:var(--muted);font-size:12.5px;margin:14px 0 0}
.terms a{color:var(--muted);text-decoration:underline}

/* sections */
.sect{padding:56px 0 0}
h2{font-size:23px;letter-spacing:-.4px;margin:0 0 18px;font-weight:700}
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.col h3{margin:0 0 5px;font-size:15px}
.col p{margin:0;color:var(--muted);font-size:13.5px}
.ic{width:32px;height:32px;border-radius:9px;background:#eef3ff;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.ic svg{width:17px;height:17px;stroke:var(--accent);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* plans */
.plans{align-items:stretch}
.plan{border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column}
.plan-pop{border-color:#bed0ff;box-shadow:0 8px 26px rgba(59,110,246,.10)}
.plan-name{font-size:13px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.plan-price{font-size:28px;font-weight:750;letter-spacing:-1px;margin:8px 0 14px}
.plan-price span{display:block;font-size:12.5px;font-weight:500;color:var(--muted);letter-spacing:0;margin-top:2px}
.plan ul{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:8px;font-size:13.5px;color:var(--muted)}
.plan li{display:flex;gap:8px;align-items:flex-start}
.plan li svg{width:14px;height:14px;flex:0 0 auto;margin-top:3px;stroke:var(--ok);fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.plan .btn{margin-top:auto;width:100%}

/* faq */
.faq{display:grid;gap:8px}
details{border:1px solid var(--line);border-radius:10px;padding:13px 16px}
summary{cursor:pointer;font-weight:600;font-size:14.5px;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--muted);font-weight:400;font-size:17px;line-height:1}
details[open] summary::after{content:"–"}
details p{margin:9px 0 0;color:var(--muted);font-size:13.5px}

/* footer */
.ftr{border-top:1px solid var(--line);margin-top:64px;padding:34px 0 26px;background:#fcfdff}
.ftr-in{display:flex;gap:36px;flex-wrap:wrap}
.ftr-col{flex:1 1 150px}
.ftr-col:first-child{flex:1 1 240px}
.ftr-note{color:var(--muted);font-size:12.5px;margin:8px 0 0;max-width:260px}
.ftr-col h4{margin:0 0 10px;font-size:11px;text-transform:uppercase;letter-spacing:.7px;color:var(--muted);font-weight:650}
.ftr-col a{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}
.ftr-col a:hover{color:var(--ink)}
.ftr-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.status{display:inline-flex;align-items:center;gap:6px}
.status i{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block}

/* modal */
.modal-wrap{position:fixed;inset:0;background:rgba(11,18,32,.45);display:none;align-items:center;justify-content:center;padding:16px;z-index:60}
.modal-wrap.show{display:flex}
.modal{background:#fff;border-radius:14px;max-width:380px;width:100%;padding:22px;box-shadow:0 18px 50px rgba(11,18,32,.22)}
.modal h3{margin:0 0 4px;font-size:17px}
.m-sub{margin:0 0 14px;color:var(--muted);font-size:13.5px}
.m-err{display:none;background:#fdf3f3;border:1px solid #f3c9c9;color:#a32b2b;border-radius:8px;padding:8px 10px;font-size:12.5px;margin-bottom:10px}
.m-err.show{display:block}
.fld{display:block;font-size:12.5px;font-weight:600;margin-bottom:10px}
.fld input{display:block;width:100%;margin-top:5px;border:1px solid var(--line-2);border-radius:8px;padding:9px 11px;font:inherit;font-size:14px;font-weight:400;color:var(--ink);background:#fbfcff}
.fld input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(59,110,246,.13)}
.m-row{display:flex;gap:8px;margin-top:4px}
.m-row .btn{flex:1}
.m-fine{font-size:12px;color:var(--muted);margin:12px 0 0}
.m-fine a{color:var(--accent)}

@media (max-width:820px){
  h1{font-size:26px}
  .nav{display:none}
  .hero{padding-top:36px}
  .cols3{grid-template-columns:1fr;gap:22px}
  .dropcard{padding:34px 18px}
}