*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}:root{--bg: #0b0f1a;--surface: #111827;--border: #1f2937;--border-dim: #374151;--text: #f1f5f9;--text-muted: #6b7280;--text-dim: #9ca3af;--accent: #3b82f6;--accent-hover:#2563eb;--accent-dim: rgba(59, 130, 246, .12);--success: #4ade80;--success-dim: rgba(74, 222, 128, .1);--error: #f87171;--error-dim: rgba(248, 113, 113, .1);--radius: 14px;--shadow: 0 0 0 1px var(--border), 0 4px 24px rgba(0,0,0,.45)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:1.5rem}code{font-family:SF Mono,Fira Code,Consolas,monospace;font-size:.85em;background:var(--border);padding:.1em .35em;border-radius:4px}.page{width:min(480px,100%);display:flex;flex-direction:column;gap:1.5rem}.header{text-align:center}.header-badge{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:var(--accent-dim);border:1px solid rgba(59,130,246,.3);padding:.2rem .65rem;border-radius:999px;margin-bottom:.75rem}.header-title{font-size:1.75rem;font-weight:800;letter-spacing:-.02em;color:var(--text);margin-bottom:.4rem}.header-subtitle{font-size:.9rem;color:var(--text-dim);line-height:1.55}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.75rem;display:flex;flex-direction:column;gap:1rem}.drop-zone{border:2px dashed var(--border-dim);border-radius:calc(var(--radius) - 2px);padding:3rem 1.5rem;cursor:pointer;transition:border-color .2s,background .2s,transform .15s;-webkit-user-select:none;user-select:none;outline:none}.drop-zone:hover,.drop-zone:focus-visible{border-color:var(--accent);background:var(--accent-dim)}.drop-zone.is-dragging{border-color:var(--accent);background:var(--accent-dim);transform:scale(1.015)}.drop-zone-inner{display:flex;flex-direction:column;align-items:center;gap:.6rem;pointer-events:none}.drop-icon{width:3rem;height:3rem;color:var(--text-muted);transition:color .2s}.drop-zone:hover .drop-icon,.drop-zone.is-dragging .drop-icon{color:var(--accent)}.drop-label{font-size:1rem;color:var(--text)}.drop-hint{font-size:.8rem;color:var(--text-muted)}.drop-icon--file{color:var(--accent)}.drop-file-name{font-size:.95rem;font-weight:600;color:var(--text);word-break:break-all;text-align:center;max-width:100%}.status{min-height:2.5rem;font-size:.875rem;border-radius:8px;padding:.6rem .9rem;display:flex;align-items:center;gap:.6rem;transition:opacity .2s}.status:empty{opacity:0}.status.is-loading{color:var(--text-dim);background:#ffffff0a}.status.is-success{color:var(--success);background:var(--success-dim)}.status.is-warning{color:#fbbf24;background:#fbbf241a}.status.is-error{color:var(--error);background:var(--error-dim)}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:1rem;height:1rem;border:2px solid var(--border-dim);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}.btn-download{display:flex;align-items:center;justify-content:center;gap:.6rem;background:var(--accent);color:#fff;font-size:.95rem;font-weight:600;border:none;border-radius:8px;padding:.85rem 1.5rem;cursor:pointer;width:100%;transition:background .18s,transform .1s}.btn-download:hover:not(:disabled){background:var(--accent-hover)}.btn-download:active:not(:disabled){transform:scale(.98)}.btn-download:disabled{background:var(--border-dim);color:var(--text-muted);cursor:not-allowed}.footer{text-align:center}.footer-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.4rem .5rem;margin-bottom:.5rem}.footer-links a{font-size:.82rem;color:var(--accent);text-decoration:none;transition:color .15s}.footer-links a:hover{color:#93c5fd;text-decoration:underline}.footer-sep{color:var(--border-dim)}.footer-note{font-size:.74rem;color:var(--text-muted)}