:root{--bg: #0a0a0a;--bg-card: #111;--bg-hover: #1a1a1a;--border: #222;--text: #fff;--text-muted: #888;--accent: #6366f1;--accent-hover: #818cf8;--success: #4ade80;--error: #ef4444;--warning: #f59e0b}[data-theme=light]{--bg: #f5f5f7;--bg-card: #fff;--bg-hover: #f0f0f2;--border: #e0e0e0;--text: #1a1a1a;--text-muted: #666;--accent: #6366f1;--accent-hover: #4f46e5;--success: #16a34a;--error: #dc2626;--warning: #d97706}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}.container{max-width:640px;margin:0 auto;padding:2rem 1.5rem;min-height:100vh;display:flex;flex-direction:column}.logo{text-align:center;margin-bottom:2rem}.logo h1{font-size:1.8rem;font-weight:700;letter-spacing:-.5px}.logo .brand{font-size:.8rem;color:var(--text-muted);margin-top:.25rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:2rem;margin-bottom:1rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:12px;border:none;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;width:100%}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-outline{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-outline:hover{background:var(--bg-hover);border-color:#444}.dropzone{border:2px dashed var(--border);border-radius:16px;padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .3s;background:var(--bg)}.dropzone:hover,.dropzone.active{border-color:var(--accent);background:#6366f10d}.dropzone-icon{font-size:3rem;margin-bottom:1rem}.dropzone h3{font-size:1.2rem;margin-bottom:.5rem}.dropzone p{color:var(--text-muted);font-size:.85rem}.file-list{list-style:none;margin:1rem 0}.file-item{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;background:var(--bg);border-radius:10px;margin-bottom:.5rem;border:1px solid var(--border)}.file-item .name{font-size:.9rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;margin-right:1rem}.file-item .size{color:var(--text-muted);font-size:.8rem;white-space:nowrap}.file-item .remove{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1.1rem;padding:.25rem;margin-left:.5rem}.file-item .remove:hover{color:var(--error)}.progress-bar{width:100%;height:6px;background:var(--border);border-radius:3px;overflow:hidden;margin:1rem 0}.progress-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .3s}.progress-text{text-align:center;color:var(--text-muted);font-size:.85rem}.badge{display:inline-block;padding:.25rem .75rem;border-radius:20px;font-size:.75rem;font-weight:600}.badge-success{background:#4ade8026;color:var(--success)}.badge-warning{background:#f59e0b26;color:var(--warning)}.badge-error{background:#ef444426;color:var(--error)}.badge-info{background:#6366f126;color:var(--accent)}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.transfer-list{list-style:none}.transfer-item{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:1.25rem;margin-bottom:.75rem;cursor:pointer;transition:all .2s}.transfer-item:hover{border-color:#444}.transfer-meta{display:flex;justify-content:space-between;align-items:center;margin-top:.5rem}.transfer-meta span{color:var(--text-muted);font-size:.8rem}.success-screen{text-align:center;padding:3rem 1rem}.success-icon{font-size:4rem;margin-bottom:1rem}.expired-screen{text-align:center;padding:3rem 1rem}.expired-icon{font-size:4rem;margin-bottom:1rem;opacity:.5}.input{width:100%;padding:.75rem 1rem;background:var(--bg);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:.95rem;outline:none;transition:border-color .2s}.input:focus{border-color:var(--accent)}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:.5rem}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}select.input{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}@media(max-width:480px){.container{padding:1rem}.card{padding:1.25rem}.form-row{grid-template-columns:1fr}}