*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0b0f;--bg2:#111318;--bg3:#181b22;
  --border:rgba(255,255,255,0.08);--border-hover:rgba(255,255,255,0.18);
  --accent:#6c63ff;--accent2:#ff6b9d;--accent3:#00d4aa;
  --text:#e8eaf0;--text-muted:#6b7280;--text-dim:#9ca3af;
  --danger:#ff4545;
  --font-head:'Syne',sans-serif;--font-mono:'DM Mono',monospace;
  --radius:12px;--shadow:0 8px 32px rgba(0,0,0,0.5);
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-head);min-height:100vh;overflow-x:hidden}
.grain{position:fixed;inset:0;pointer-events:none;z-index:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");opacity:0.5}
.bg-glow{position:fixed;pointer-events:none;z-index:0;width:600px;height:600px;top:-200px;left:50%;transform:translateX(-50%);background:radial-gradient(ellipse,rgba(108,99,255,0.12) 0%,transparent 70%);filter:blur(40px)}

/* Pages */
.page{display:none;position:relative;z-index:5;min-height:100vh}
.page.active{display:block}

/* Landing */
.landing-wrap{max-width:700px;margin:0 auto;padding:80px 24px;text-align:center}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:1.5rem;font-weight:800;letter-spacing:-0.5px;margin-bottom:16px}
.logo.small{font-size:1.1rem}
.landing-sub{color:var(--text-dim);font-size:1rem;margin-bottom:48px}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;text-align:left}
@media(max-width:580px){.cards{grid-template-columns:1fr}}
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:border-color .2s}
.card:hover{border-color:var(--border-hover)}
.card-head{margin-bottom:20px}
.card-icon-big{font-size:2rem;display:block;margin-bottom:12px}
.card-head h2{font-size:1.1rem;font-weight:700;margin-bottom:6px}
.card-head p{color:var(--text-dim);font-size:0.82rem;line-height:1.5}
.input-group{display:flex;flex-direction:column;gap:8px}
.input-group input{background:var(--bg3);border:1px solid var(--border);color:var(--text);font-family:var(--font-head);font-size:0.9rem;padding:11px 14px;border-radius:8px;outline:none;transition:border-color .2s;text-transform:uppercase;letter-spacing:1px}
.input-group input::placeholder{text-transform:none;letter-spacing:0;color:var(--text-muted)}
.input-group input:focus{border-color:var(--accent)}
.btn-primary{background:var(--accent);border:none;color:white;padding:11px;border-radius:8px;font-family:var(--font-head);font-size:0.9rem;font-weight:700;cursor:pointer;transition:all .2s}
.btn-primary:hover{background:#8b83ff;transform:translateY(-1px)}
.btn-secondary{background:var(--bg3);border:1px solid var(--border);color:var(--text);padding:11px;border-radius:8px;font-family:var(--font-head);font-size:0.9rem;font-weight:700;cursor:pointer;transition:all .2s}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}
.input-hint{color:var(--text-muted);font-size:0.72rem;font-family:var(--font-mono);margin-top:8px}

/* Header */
header{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;border-bottom:1px solid var(--border);backdrop-filter:blur(12px);background:rgba(10,11,15,0.7);gap:12px;flex-wrap:wrap}
.room-badge{display:flex;align-items:center;gap:8px;background:var(--bg3);border:1px solid var(--border);padding:6px 14px;border-radius:99px}
.room-label{color:var(--text-muted);font-size:0.72rem;font-family:var(--font-mono)}
.room-code{color:var(--accent);font-family:var(--font-mono);font-weight:700;font-size:0.9rem;letter-spacing:2px}
.copy-code-btn{background:none;border:none;cursor:pointer;font-size:0.9rem;padding:0;transition:transform .2s}
.copy-code-btn:hover{transform:scale(1.2)}
.header-right{display:flex;align-items:center;gap:16px}
.stats-bar{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:0.72rem;color:var(--text-muted)}
.stats-bar .dot{opacity:0.4}
.btn-leave{background:none;border:1px solid var(--border);color:var(--text-muted);padding:7px 14px;border-radius:8px;font-family:var(--font-head);font-size:0.8rem;cursor:pointer;transition:all .2s}
.btn-leave:hover{border-color:var(--border-hover);color:var(--text)}

/* Main */
main{max-width:900px;margin:0 auto;padding:36px 24px 80px}
.upload-section{margin-bottom:36px}
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:52px 32px;text-align:center;cursor:pointer;transition:border-color .25s,background .25s,transform .2s;background:var(--bg2);position:relative;overflow:hidden}
.drop-zone::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(108,99,255,0.05) 0%,transparent 60%);pointer-events:none}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:rgba(108,99,255,0.05);transform:scale(1.005)}
.drop-zone.drag-over{border-style:solid}
.drop-icon{margin-bottom:16px;animation:float 3s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.drop-title{font-size:1.3rem;font-weight:700;margin-bottom:6px}
.drop-sub{color:var(--text-dim);font-size:0.88rem;margin-bottom:8px}
.drop-limit{color:var(--text-muted);font-size:0.75rem;font-family:var(--font-mono)}
.browse-link{color:var(--accent);text-decoration:underline;cursor:pointer;text-decoration-style:dotted}
.queue{margin-top:16px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.queue-header{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;border-bottom:1px solid var(--border);font-size:0.82rem;color:var(--text-dim)}
.queue-actions{display:flex;gap:8px}
.btn-clear{background:none;border:1px solid var(--border);color:var(--text-muted);padding:5px 12px;border-radius:6px;font-family:var(--font-head);font-size:0.78rem;cursor:pointer;transition:all .2s}
.btn-clear:hover{border-color:var(--border-hover);color:var(--text)}
.btn-upload{background:var(--accent);border:none;color:white;padding:5px 16px;border-radius:6px;font-family:var(--font-head);font-size:0.82rem;font-weight:700;cursor:pointer;transition:all .2s}
.btn-upload:hover{background:#8b83ff}
.queue-list{list-style:none}
.queue-item{display:flex;align-items:center;gap:10px;padding:9px 18px;border-bottom:1px solid var(--border);font-size:0.82rem}
.queue-item:last-child{border-bottom:none}
.queue-item .file-icon{font-size:1.1rem;flex-shrink:0}
.queue-item .file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.queue-item .file-size{color:var(--text-muted);font-family:var(--font-mono);font-size:0.72rem;flex-shrink:0}
.queue-item .remove-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:0.9rem;padding:0 4px;transition:color .15s}
.queue-item .remove-btn:hover{color:var(--danger)}
.progress-wrap{margin-top:16px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px}
.progress-label{display:flex;justify-content:space-between;font-size:0.8rem;color:var(--text-dim);margin-bottom:10px;font-family:var(--font-mono)}
.progress-bar{height:6px;background:var(--bg);border-radius:99px;overflow:hidden}
.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:99px;transition:width .3s ease}
.toolbar{display:flex;align-items:center;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.search-input{flex:1;min-width:160px;background:var(--bg2);border:1px solid var(--border);color:var(--text);font-family:var(--font-head);font-size:0.86rem;padding:9px 14px;border-radius:8px;outline:none;transition:border-color .2s}
.search-input::placeholder{color:var(--text-muted)}
.search-input:focus{border-color:var(--accent)}
.filter-tabs{display:flex;gap:6px;flex-wrap:wrap}
.tab{background:var(--bg2);border:1px solid var(--border);color:var(--text-muted);padding:6px 12px;border-radius:99px;font-family:var(--font-head);font-size:0.76rem;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}
.tab:hover{border-color:var(--border-hover);color:var(--text)}
.tab.active{background:var(--accent);border-color:var(--accent);color:white}
.files-grid{display:grid;gap:10px}
.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted);font-size:0.88rem;grid-column:1/-1}
.file-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;display:flex;align-items:center;gap:14px;transition:border-color .2s,background .2s,transform .2s;animation:card-in .3s ease both}
@keyframes card-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.file-card:hover{border-color:var(--border-hover);background:var(--bg3);transform:translateY(-1px)}
.card-icon{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0;background:var(--bg3)}
.card-info{flex:1;min-width:0}
.card-name{font-size:0.9rem;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:4px}
.card-meta{display:flex;gap:10px;font-family:var(--font-mono);font-size:0.7rem;color:var(--text-muted)}
.card-actions{display:flex;gap:6px;flex-shrink:0}
.action-btn{background:var(--bg3);border:1px solid var(--border);color:var(--text-muted);width:32px;height:32px;border-radius:8px;cursor:pointer;font-size:0.95rem;display:flex;align-items:center;justify-content:center;transition:all .2s}
.action-btn:hover{border-color:var(--border-hover);color:var(--text)}
.action-btn.danger:hover{border-color:var(--danger);color:var(--danger)}
.action-btn.primary:hover{border-color:var(--accent);color:var(--accent)}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--bg3);border:1px solid var(--border);color:var(--text);padding:11px 22px;border-radius:99px;font-size:0.83rem;font-weight:600;z-index:1000;transition:transform .3s ease,opacity .3s ease;opacity:0;pointer-events:none;white-space:nowrap;box-shadow:var(--shadow)}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}
.toast.success{border-color:#00d4aa;color:#00d4aa}
.toast.error{border-color:var(--danger);color:var(--danger)}
@media(max-width:600px){header{padding:12px 16px}main{padding:20px 14px 60px}.drop-zone{padding:36px 16px}}