:root{
  --bg:#0b1020; --bg2:#0f1630; --panel:#141c38; --panel2:#1b2547;
  --text:#e8ecf7; --muted:#93a0c4; --line:#26325c;
  --accent:#7c5cff; --accent2:#22d3ee; --good:#34d399; --warn:#fbbf24; --bad:#f87171;
  --radius:16px; --shadow:0 12px 40px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 20% -10%,#182247 0,transparent 60%),
             radial-gradient(1000px 500px at 100% 0,#0d2a3a 0,transparent 55%),
             var(--bg);
  color:var(--text); min-height:100vh; line-height:1.5;
}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
.hidden{display:none !important}

/* bg orbs */
.bg-orbs{position:fixed;inset:0;overflow:hidden;z-index:0;pointer-events:none}
.bg-orbs span{position:absolute;border-radius:50%;filter:blur(80px);opacity:.35;animation:float 18s ease-in-out infinite}
.bg-orbs span:nth-child(1){width:340px;height:340px;background:#7c5cff;top:-80px;left:-60px}
.bg-orbs span:nth-child(2){width:300px;height:300px;background:#22d3ee;bottom:-60px;right:-40px;animation-delay:-6s}
.bg-orbs span:nth-child(3){width:260px;height:260px;background:#f472b6;top:40%;left:60%;animation-delay:-12s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-30px)}}

header,main,footer{position:relative;z-index:1}
header{padding:38px 0 14px}
.brand{display:flex;gap:16px;align-items:center}
.logo{font-size:44px;filter:drop-shadow(0 6px 14px rgba(124,92,255,.5))}
h1{margin:0;font-size:30px;font-weight:800;letter-spacing:-.5px}
.accent{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.tag{margin:4px 0 0;color:var(--muted);font-size:15px}

/* dropzone */
.dropzone{
  margin:26px 0;border:2px dashed var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0));
  padding:48px 20px;text-align:center;cursor:pointer;transition:.2s;
}
.dropzone:hover,.dropzone:focus{border-color:var(--accent);background:rgba(124,92,255,.06);outline:none}
.dropzone.drag{border-color:var(--accent2);background:rgba(34,211,238,.09);transform:scale(1.01)}
.dz-icon{font-size:52px;margin-bottom:6px}
.dz-title{font-size:19px;margin:6px 0}
.dz-sub{color:var(--muted);margin:2px 0}
.dz-priv{color:var(--good);font-size:13px;margin-top:10px}
.link{background:none;border:none;color:var(--accent2);cursor:pointer;font:inherit;text-decoration:underline;padding:0}

/* loading */
.loading{display:flex;align-items:center;gap:12px;justify-content:center;padding:24px;color:var(--muted)}
.spinner{width:22px;height:22px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* panels */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:18px 0;box-shadow:var(--shadow)}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.panel-head h2{margin:0;font-size:17px}
.muted{color:var(--muted);font-weight:400;font-size:14px}
.chip{background:var(--panel2);border:1px solid var(--line);color:var(--accent2);padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600}

/* options */
.opt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.opt{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--muted)}
.opt.full{margin-top:14px}
.opt.check{flex-direction:row;align-items:center;gap:10px;color:var(--text)}
.opt.check input{width:18px;height:18px;accent-color:var(--accent)}
.opt code{background:var(--bg2);padding:1px 6px;border-radius:6px;color:var(--accent2);font-size:12px}
select,input[type=number],input[type=text],.filter{
  background:var(--bg2);border:1px solid var(--line);color:var(--text);
  padding:10px 12px;border-radius:10px;font:inherit;width:100%;
}
select:focus,input:focus{outline:none;border-color:var(--accent)}

/* buttons */
.btnrow{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:var(--panel2);color:var(--text);padding:11px 18px;border-radius:11px;font:inherit;font-weight:600;cursor:pointer;transition:.15s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:linear-gradient(90deg,var(--accent),#6b46ff);border-color:transparent;box-shadow:0 8px 22px rgba(124,92,255,.35)}
.btn.ghost:hover{border-color:var(--accent)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:8px 0}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center}
.stat .num{font-size:24px;font-weight:800;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--muted);font-size:12px;margin-top:2px;text-transform:uppercase;letter-spacing:.5px}

/* file list */
.filter{max-width:240px}
.filelist{max-height:340px;overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--bg2)}
.frow{display:flex;align-items:center;gap:10px;padding:8px 14px;border-bottom:1px solid var(--line);font-size:14px}
.frow:last-child{border-bottom:none}
.frow:hover{background:rgba(124,92,255,.06)}
.frow input{width:16px;height:16px;accent-color:var(--accent);flex:none}
.frow .path{flex:1;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;word-break:break-all}
.frow .size{color:var(--muted);font-size:12px;flex:none}
.frow.skipped{opacity:.45}
.frow .badge{font-size:11px;padding:1px 7px;border-radius:999px;background:var(--bg);border:1px solid var(--line);color:var(--warn)}

/* output */
#output{width:100%;height:360px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;resize:vertical;line-height:1.45}
.out-actions{display:flex;gap:8px}

footer{margin-top:40px;padding:26px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px;text-align:center}

/* toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--panel2);border:1px solid var(--line);color:var(--text);padding:12px 20px;border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.25s;z-index:99}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media(max-width:560px){h1{font-size:24px}.logo{font-size:36px}}