:root{
  --aqua:#00B8D4; --teal:#00838F; --teal-dark:#006974;
  --ink:#0F2A43; --muted:#5D7588; --line:#E3EEF1; --ground:#F7FBFC; --card:#FFFFFF;
  --tint:#E5F7FA; --tint-line:#57CBDD;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--ground);color:var(--ink);overflow-x:clip;
  font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:inherit}
main{max-width:1080px;margin:0 auto;padding:0 16px}

.site-nav{display:flex;align-items:center;gap:22px;padding:14px 22px;background:var(--card);
  border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink);font-weight:800;font-size:19px;text-decoration:none}
.nav-links{display:flex;gap:18px}
.nav-links a{color:#33526B;text-decoration:none;font-size:13.5px;font-weight:600}
.nav-links a:hover{color:var(--teal)}
.nav-auth{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-auth a{color:#33526B;text-decoration:none;font-size:13.5px;font-weight:600}
.linklike{background:none;border:0;color:#33526B;font:600 13.5px system-ui,sans-serif;cursor:pointer;padding:0}

.btn-accent{background:linear-gradient(135deg,var(--aqua),var(--teal));color:#fff;font-weight:700;
  text-decoration:none;border:0;border-radius:10px;padding:9px 18px;font-size:13.5px;cursor:pointer;
  display:inline-block;box-shadow:0 4px 14px rgba(0,131,143,.28);
  transition:transform .12s ease,box-shadow .12s ease,filter .12s ease}
.btn-accent:hover{filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 7px 20px rgba(0,131,143,.38)}
.btn-accent:active{transform:translateY(0);box-shadow:0 3px 10px rgba(0,131,143,.3)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:600;
  border-radius:10px;padding:9px 16px;font-size:13.5px;cursor:pointer;display:inline-block;
  text-decoration:none;transition:border-color .12s,color .12s}
.btn-ghost:hover{border-color:#E9B4AE;color:#B3261E}
.btn-ghost:disabled{opacity:.6;cursor:default}
.btn-primary{background:var(--ink);color:#fff;font-weight:700;border:0;border-radius:9px;
  padding:9px 16px;font-size:13.5px;cursor:pointer}
.btn-primary:disabled{opacity:.45;cursor:not-allowed}
.big{padding:13px 28px;font-size:15px;border-radius:11px}

.hero{text-align:center;padding:46px 18px 10px}
.hero h1{font-size:clamp(26px,4vw,38px);line-height:1.15;margin:0 0 12px;color:var(--ink)}
.hero p{color:#4A6478;max-width:56ch;margin:0 auto}

.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;padding:30px 0 40px}
.tool-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 16px;
  text-decoration:none;transition:border-color .15s}
.tool-card:hover{border-color:var(--aqua)}
.tool-card b{display:block;margin-bottom:4px}
.tool-card span{color:var(--muted);font-size:12.5px;line-height:1.4;display:block}
.tool-card .ic{width:34px;height:34px;border-radius:9px;background:#D9F4F8;
  display:grid;place-items:center;margin-bottom:10px}
.tool-card .ic svg{width:19px;height:19px;stroke:var(--teal);fill:none}
.tools-grid.featured{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));padding-bottom:6px}
.big-card{padding:24px 20px;border-radius:14px}
.big-card .ic{width:44px;height:44px;border-radius:11px;margin-bottom:14px}
.big-card .ic svg{width:24px;height:24px}
.big-card b{font-size:17px;margin-bottom:5px}
.big-card span:last-child{font-size:13px}
.reveal-wrap{text-align:center;margin:6px 0 8px}
#all-tools{padding-top:6px}
.trust-strip{display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:center;
  padding:26px 0 6px;font-size:13px;font-weight:600;color:#33526B}
.trust-strip em{font-style:normal;display:flex;align-items:center;gap:7px}
.trust-strip svg{width:15px;height:15px;stroke:#00A5B8;fill:none;stroke-width:2.4;
  stroke-linecap:round;stroke-linejoin:round}

.tool-page{max-width:640px;margin:0 auto;padding:36px 0 60px;text-align:center}
.tool-page h1{font-size:clamp(24px,3.4vw,32px);margin:0 0 6px}
.tagline{color:var(--muted);margin:0 0 24px}
.drop{background:var(--tint);border:2px dashed var(--tint-line);border-radius:16px;padding:34px 20px;margin-bottom:18px}
.drop.dragover{border-color:var(--teal);background:#D9F4F8}
.drop small{display:block;margin-top:12px;color:#3E7A87}
#file-list{list-style:none;margin:12px 0 0;padding:0;font-size:13px;color:var(--ink)}
#file-list li{padding:2px 0}
.opt{display:block;text-align:left;font-weight:600;font-size:13.5px;margin:0 0 14px}
.opt input,.opt select{display:block;width:100%;margin-top:5px;padding:10px 12px;font-size:14px;
  border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.bar{height:10px;background:var(--line);border-radius:99px;overflow:hidden;margin:26px 0 10px}
.bar i{display:block;height:100%;width:0;background:var(--aqua);transition:width .2s}
.done-msg{font-weight:700;font-size:17px}
.limit-msg{font-weight:600}
.error-msg{color:#B3261E;font-size:13.5px}
.result-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:6px}
.hint{color:var(--muted);font-size:12.5px;margin:14px 0 4px}
.flash{background:var(--tint);border:1px solid var(--tint-line);color:var(--teal-dark);
  padding:10px 14px;border-radius:9px;font-size:13.5px;margin:0 0 16px}
.row-actions{display:flex;gap:14px;align-items:center}
.files form{display:inline;margin:0}
.linklike.danger{color:#B3261E}
.made-in{display:inline-flex;align-items:center;gap:4px}
.made-in .heart{vertical-align:-2px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin:22px 0 8px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 14px;text-align:left}
.stat b{display:block;font-size:26px;color:var(--teal);line-height:1.1}
.stat span{display:block;margin-top:4px;font-size:12.5px;color:var(--muted)}

.auth-card{max-width:400px;margin:40px auto;background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:28px 26px}
.auth-card h1{margin:0 0 4px;font-size:24px}
.auth-card label{display:block;font-weight:600;font-size:13.5px;margin:14px 0}
.auth-card input{display:block;width:100%;margin-top:5px;padding:10px 12px;font-size:14px;
  border:1px solid var(--line);border-radius:9px}
.auth-card button{width:100%;margin-top:18px}

.files{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:12px}
.files th,.files td{padding:10px 12px;border-bottom:1px solid var(--line);font-size:13.5px;text-align:left}

.site-foot{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  background:var(--card);border-top:1px solid var(--line);color:#6B8296;font-size:12.5px;
  padding:16px 22px;margin-top:40px}
@media (max-width:680px){.nav-links{display:none}}