:root{--bg-deep:#1a1b20;--bg-main:#22232a;--bg-surface:#2a2b33;--bg-elevated:#32333d;--border:#3a3b46;--text-primary:#e8e9ed;--text-secondary:#9a9ca8;--text-muted:#6b6d78;--accent:#7c8af6;--accent-dim:rgba(124,138,246,.15);--success:#7ec96a;--warning:#d4a84b;--danger:#d46b6b;--radius-card:14px;--radius-button:8px}*{box-sizing:border-box;margin:0;padding:0}body,html{min-height:100vh;background-color:var(--bg-deep);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}.container{max-width:800px;margin:0 auto;padding:2rem 1.5rem}h1{font-size:2rem;margin-bottom:.5rem}h1,h2{font-weight:600;color:var(--text-primary)}h2{font-size:1.25rem;margin-bottom:.75rem}h3{font-size:1rem;font-weight:500}h3,p{color:var(--text-secondary)}p{margin-bottom:1rem}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:1.5rem;margin-bottom:1.5rem}.card-elevated{background:var(--bg-elevated)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border:none;border-radius:var(--radius-button);cursor:pointer;transition:all .15s ease;min-height:44px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){filter:brightness(1.1)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg-surface)}.btn-success{background:var(--success);color:var(--bg-deep)}.btn-danger{background:var(--danger);color:#fff}.dropzone{border:2px dashed var(--border);border-radius:var(--radius-card);padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .2s ease;background:var(--bg-main)}.dropzone.dragover,.dropzone:hover{border-color:var(--accent);background:var(--accent-dim)}.dropzone-icon{font-size:3rem;margin-bottom:1rem;opacity:.6}.dropzone-text{color:var(--text-secondary);margin-bottom:.5rem}.dropzone-hint{font-size:.875rem;color:var(--text-muted)}.status-badge{display:inline-flex;align-items:center;gap:.375rem;padding:.25rem .75rem;border-radius:100px;font-size:.875rem;font-weight:500}.status-success{background:rgba(126,201,106,.15);color:var(--success)}.status-warning{background:rgba(212,168,75,.15);color:var(--warning)}.status-error{background:hsla(0,55%,63%,.15);color:var(--danger)}.status-info{background:var(--accent-dim);color:var(--accent)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:1rem;gap:1rem;margin:1.5rem 0}.stat-item{background:var(--bg-main);border-radius:var(--radius-button);padding:1rem;text-align:center}.stat-value{font-size:1.5rem;font-weight:600;color:var(--text-primary)}.stat-label{font-size:.875rem;color:var(--text-muted);margin-top:.25rem}.warnings-list{list-style:none;margin:1rem 0}.warning-item{display:flex;gap:.75rem;padding:.75rem;background:var(--bg-main);border-radius:var(--radius-button);margin-bottom:.5rem;font-size:.875rem}.warning-icon{flex-shrink:0;width:1.25rem;height:1.25rem}.warning-content{flex:1 1}.warning-message{color:var(--text-secondary)}.warning-details{color:var(--text-muted);font-size:.8125rem;margin-top:.25rem}.collapsible-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;background:var(--bg-main);border-radius:var(--radius-button);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none}.collapsible-header:hover{background:var(--bg-elevated)}.collapsible-content{padding:1rem;display:none}.collapsible-content.open{display:block}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.5rem}.gap-2{gap:1rem}.header{margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border)}.header-subtitle{color:var(--text-muted);font-size:1rem}.footer{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border);text-align:center;color:var(--text-muted);font-size:.875rem}.footer a{color:var(--text-secondary)}@media (max-width:600px){.container{padding:1.5rem 1rem}h1{font-size:1.5rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.dropzone{padding:2rem 1rem}}