:root{--primary:#08c;--primary-hover:#0077b5;--bg:#f8f9fa;--card-bg:#fff;--text:#212529;--text-muted:#6c757d;--border:#dee2e6;--success:#28a745;--radius:12px;--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.container{max-width:1120px;margin:0 auto;padding:40px 20px}.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);margin-bottom:24px;padding:24px}h1{letter-spacing:-.025em;margin-bottom:8px;font-size:2rem;font-weight:800}p.description{color:var(--text-muted);margin-bottom:32px}.btn{border-radius:var(--radius);cursor:pointer;border:none;justify-content:center;align-items:center;padding:12px 24px;font-size:1rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{background-color:var(--border);cursor:not-allowed;color:var(--text-muted)}.spin{animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.how-it-works{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-top:16px;display:grid}.step{text-align:center;flex-direction:column;align-items:center;gap:8px;display:flex}.step-icon{width:48px;height:48px;color:var(--primary);background:#e7f3ff;border-radius:50%;justify-content:center;align-items:center;margin-bottom:8px;font-size:1.25rem;display:flex}.step-title{font-size:.9375rem;font-weight:700}.step-desc{color:var(--text-muted);font-size:.8125rem;line-height:1.4}.status-badge{color:var(--text-muted);align-items:center;gap:8px;margin-bottom:16px;font-size:.875rem;font-weight:500;display:inline-flex}.status-dot{background-color:var(--border);border-radius:50%;width:8px;height:8px}.status-dot.active{background-color:var(--success);box-shadow:0 0 0 4px #28a74533}.file-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;margin-top:32px;display:grid}.file-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:12px;padding:16px;transition:transform .2s,box-shadow .2s;display:flex}.file-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.file-info{flex-direction:column;gap:6px;display:flex}.file-badge{color:var(--primary);letter-spacing:.02em;text-transform:uppercase;background:#e7f3ff;border-radius:999px;align-self:flex-start;padding:4px 10px;font-size:.7rem;font-weight:700;display:inline-flex}.file-name{white-space:nowrap;text-overflow:ellipsis;font-size:.9375rem;font-weight:600;overflow:hidden}.file-meta{color:var(--text-muted);font-size:.75rem}.preview-container{aspect-ratio:16/9;border-radius:calc(var(--radius) - 4px);background:#f1f3f5;justify-content:center;align-items:center;width:100%;display:flex;overflow:hidden}.preview-img{object-fit:cover;width:100%;height:100%}.file-actions{flex-wrap:wrap;gap:8px;margin-top:auto;display:flex}.file-actions>*{flex:1 1 0;min-width:120px}.file-organize{grid-template-columns:1fr;gap:10px;display:grid}.file-tags{flex-wrap:wrap;gap:8px;display:flex}.file-tag-pill,.file-tag-empty{border-radius:999px;align-items:center;gap:6px;padding:4px 9px;font-size:.75rem;display:inline-flex}.file-tag-pill{color:var(--primary);background:#f1f7fc;font-weight:600}.file-tag-empty{color:var(--text-muted);background:#f8f9fa}.upload-meta-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.folder-create-row{grid-template-columns:1fr auto;gap:12px;display:grid}.folder-create-row input{border:1px solid var(--border);width:100%;min-height:46px;font:inherit;border-radius:14px;padding:0 14px}.btn-sm{padding:6px 12px;font-size:.8125rem}.empty-state{text-align:center;color:var(--text-muted);border:2px dashed var(--border);border-radius:var(--radius);padding:40px}.dashboard-overview{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:20px;display:grid}.stat-card{border:1px solid var(--border);background:linear-gradient(#fff 0%,#f8fbff 100%);border-radius:16px;flex-direction:column;gap:6px;padding:16px;display:flex}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:.75rem}.stat-card strong{font-size:1.15rem}.section-header{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:14px;display:flex}.section-subtitle{color:var(--text-muted);margin-top:4px;font-size:.875rem}.file-toolbar{grid-template-columns:minmax(220px,1.5fr) minmax(180px,.8fr) minmax(180px,.8fr);gap:12px;margin-bottom:16px;display:grid}.search-box,.select-box{border:1px solid var(--border);background:#fff;border-radius:14px;align-items:center;gap:10px;min-height:46px;padding:0 14px;display:flex}.search-box svg,.select-box svg{color:var(--text-muted);flex-shrink:0}.search-box input,.select-box select{width:100%;font:inherit;color:var(--text);background:0 0;border:none;outline:none}.select-box select{cursor:pointer}.folder-rail{flex-wrap:wrap;gap:10px;margin-bottom:18px;display:flex}.folder-chip{border:1px solid var(--border);color:var(--text);cursor:pointer;background:#fff;border-radius:999px;align-items:center;gap:8px;padding:10px 14px;font-weight:600;transition:all .2s;display:inline-flex}.folder-chip svg{color:var(--primary)}.folder-chip strong{min-width:1.5rem;color:var(--primary);text-align:center;background:#f1f7fc;border-radius:999px;padding:2px 7px;font-size:.75rem;font-weight:700}.folder-chip.active{border-color:var(--primary);background:#e7f3ff;box-shadow:0 0 0 3px #0088cc14}.folder-chip:hover{box-shadow:var(--shadow);transform:translateY(-1px)}@media (width<=900px){.file-toolbar{grid-template-columns:1fr}.section-header{flex-direction:column;align-items:flex-start}.upload-meta-grid,.folder-create-row{grid-template-columns:1fr}}