:root{
  --bg:#f6f7f9; --card:#ffffff; --ink:#16181d; --muted:#6b7280; --line:#e7e9ee;
  --accent:#4f46e5; --accent-ink:#ffffff; --accent-soft:#eef0fe;
  --radius:16px; --shadow:0 1px 2px rgba(16,18,29,.04),0 8px 30px rgba(16,18,29,.07);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.hidden{display:none}

/* ---------- uploader ---------- */
.wrap{max-width:640px;margin:0 auto;padding:32px 18px 60px;min-height:100vh;display:flex;flex-direction:column}
.topbar{text-align:center;margin-bottom:22px}
.brand{font-size:1.5rem;font-weight:700;letter-spacing:-.02em}
.logo{display:inline-block;transform:translateY(1px);color:var(--accent)}
.topbar .sub{color:var(--muted);margin-top:6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}
.card h1{font-size:1.35rem;margin:.1rem 0 1rem;letter-spacing:-.01em}
.foot{text-align:center;color:var(--muted);font-size:.82rem;margin-top:18px}

.choices{display:flex;flex-direction:column;gap:12px}
.choice{display:flex;align-items:center;gap:16px;width:100%;text-align:left;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;cursor:pointer;transition:.15s;font:inherit;color:inherit}
.choice:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px)}
.cicon{font-size:1.8rem;width:46px;height:46px;display:grid;place-items:center;background:var(--accent-soft);border-radius:12px;flex:none}
.cbody{flex:1}
.cname{font-weight:600}
.cdesc{font-size:.88rem;margin-top:2px}
.carrow{font-size:1.5rem;color:var(--muted)}

.back{background:none;border:none;color:var(--muted);cursor:pointer;font:inherit;padding:0 0 10px;margin:0}
.back:hover{color:var(--ink)}
.titlein{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;margin-bottom:14px}
.titlein:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.drop{border:2px dashed var(--line);border-radius:14px;padding:30px 18px;text-align:center;cursor:pointer;transition:.15s;background:#fbfbfd}
.drop:hover,.drop.over{border-color:var(--accent);background:var(--accent-soft)}
.drop.over{transform:scale(1.01)}
.dropicon{font-size:2rem;margin-bottom:6px}
.filelist{margin-top:14px;display:flex;flex-direction:column;gap:2px;max-height:260px;overflow:auto}
.filerow{display:flex;justify-content:space-between;gap:12px;padding:8px 4px;border-bottom:1px solid var(--line);font-size:.9rem}
.filerow .fn{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.filerow.total{font-weight:600;border-bottom:none;border-top:2px solid var(--line);margin-top:4px}
.actions{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 18px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;font-weight:600;cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07);color:#fff}
.btn.ghost{background:none;border-color:transparent;color:var(--muted)}
.btn.small{padding:7px 12px;font-size:.85rem}
.btn[disabled]{opacity:.45;cursor:not-allowed}

.bar{height:10px;background:var(--accent-soft);border-radius:999px;overflow:hidden;margin:8px 0}
.barfill{height:100%;width:0;background:var(--accent);border-radius:999px;transition:width .2s}
.pct{font-weight:700;font-size:1.4rem;letter-spacing:-.02em}
.err{color:#c0392b;background:#fdecea;padding:10px 12px;border-radius:10px}

.doneicon{width:56px;height:56px;border-radius:50%;background:#e7f8ee;color:#1c9e54;display:grid;place-items:center;font-size:1.8rem;margin:0 auto 6px}
.linkrow{display:flex;gap:8px;margin:14px 0}
.linkbox{flex:1;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fbfbfd}
.linkbox:focus{outline:none;border-color:var(--accent)}

/* ---------- gallery ---------- */
.gallerybody{background:var(--bg)}
.ghead{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:16px;padding:12px 20px;background:rgba(246,247,249,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.gmeta{flex:1;display:flex;flex-direction:column;line-height:1.2;min-width:0}
.gtitle{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.gsub{color:var(--muted);font-size:.82rem}
.gstatus{text-align:center;color:var(--muted);padding:40px 20px}

.grid{column-width:230px;column-gap:12px;padding:16px 20px 60px}
.tile{break-inside:avoid;margin:0 0 12px;border-radius:12px;overflow:hidden;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);cursor:pointer;position:relative;transition:.15s}
.tile:hover{transform:translateY(-2px);border-color:#d6d9e2}
.thumbwrap{position:relative;width:100%;background:#eceef3;display:block}
.thumb{width:100%;height:100%;display:block;object-fit:cover}
.thumb.ph{display:grid;place-items:center;font-size:2.4rem;min-height:120px}
.play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;display:grid;place-items:center;font-size:1.1rem;padding-left:3px}
.cap{display:flex;align-items:center;gap:8px;padding:8px 10px;font-size:.82rem}
.capname{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted)}
.capdl{flex:none;color:var(--muted);font-size:1rem}
.capdl:hover{color:var(--accent)}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:50;background:rgba(10,11,15,.92);display:flex;align-items:center;justify-content:center}
.lbstage{max-width:94vw;max-height:86vh;display:flex;align-items:center;justify-content:center}
.lbmedia{max-width:94vw;max-height:86vh;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lbclose{position:absolute;top:16px;right:18px;width:42px;height:42px;border-radius:50%;border:none;background:rgba(255,255,255,.12);color:#fff;font-size:1.1rem;cursor:pointer}
.lbclose:hover{background:rgba(255,255,255,.25)}
.lbnav{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;border:none;background:rgba(255,255,255,.1);color:#fff;font-size:1.8rem;cursor:pointer}
.lbnav:hover{background:rgba(255,255,255,.22)}
.lbprev{left:18px}.lbnext{right:18px}
.lbbar{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;gap:14px;padding:14px 20px;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.55))}
.lbtitle{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lbbar .btn{background:rgba(255,255,255,.14);border-color:transparent;color:#fff}
.lbbar .btn:hover{background:rgba(255,255,255,.28)}
.lbfile{display:flex;flex-direction:column;align-items:center;gap:14px;color:#fff;background:rgba(255,255,255,.06);padding:46px;border-radius:16px}
.lbfileic{font-size:3rem}
.lbfilename{font-size:1.05rem}

@media (max-width:560px){
  .grid{column-width:46vw;column-gap:8px;padding:10px}
  .lbnav{width:40px;height:40px}
}