:root{--bg: #f9fafb;--surface: #ffffff;--border: #e5e7eb;--border-focus: #4f46e5;--primary: #4f46e5;--primary-hover: #4338ca;--primary-light: #eef2ff;--text: #111827;--text-muted: #6b7280;--success: #10b981;--success-bg: #ecfdf5;--success-border:#a7f3d0;--error: #ef4444;--error-bg: #fef2f2;--error-border: #fecaca;--warn-bg: #fffbeb;--warn-border: #fde68a;--warn-text: #92400e;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.5;color:var(--text);background:var(--bg);min-height:100vh}#app{display:flex;flex-direction:column;min-height:100vh}header{padding:14px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:10}.logo{font-weight:700;font-size:17px;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:8px}.logo svg{color:var(--primary)}.privacy-badge{font-size:11px;font-weight:600;letter-spacing:.05em;color:var(--success);background:var(--success-bg);border:1px solid var(--success-border);padding:2px 10px;border-radius:100px}main{flex:1;max-width:640px;width:100%;margin:0 auto;padding:48px 24px 64px}.hero{text-align:center;margin-bottom:32px}.hero h1{font-size:26px;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}.hero p{color:var(--text-muted)}#dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:52px 24px;text-align:center;cursor:pointer;background:var(--surface);transition:border-color .15s,background .15s,transform .1s;-webkit-user-select:none;user-select:none}#dropzone:hover,#dropzone:focus-visible{border-color:var(--primary);background:var(--primary-light);outline:none}#dropzone.drag-over{border-color:var(--primary);border-style:solid;background:var(--primary-light);transform:scale(1.01)}.dropzone-icon{font-size:44px;margin-bottom:14px;display:block}#dropzone p{color:var(--text-muted);margin-bottom:4px}#dropzone p strong{color:var(--text)}.dropzone-browse{color:var(--primary);font-weight:600;cursor:pointer;background:none;border:none;font-size:inherit;padding:0;text-decoration:underline;text-underline-offset:2px}.dropzone-formats{font-size:13px;color:var(--text-muted);margin-top:10px}.file-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;display:flex;align-items:center;gap:12px;box-shadow:var(--shadow)}.file-icon{font-size:30px;flex-shrink:0}.file-meta{flex:1;min-width:0}.file-name{font-weight:500;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-size{font-size:13px;color:var(--text-muted)}.file-remove{background:none;border:none;cursor:pointer;color:var(--text-muted);font-size:18px;padding:4px 8px;border-radius:var(--radius-sm);line-height:1;flex-shrink:0;transition:background .1s,color .1s}.file-remove:hover{background:var(--border);color:var(--text)}.format-picker{margin-top:20px}.format-picker-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted);margin-bottom:10px}.format-buttons{display:flex;gap:8px;flex-wrap:wrap}.format-btn{padding:8px 18px;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:border-color .1s,color .1s,background .1s}.format-btn:hover{border-color:var(--primary);color:var(--primary)}.format-btn.selected{border-color:var(--primary);background:var(--primary);color:#fff}.convert-btn{display:block;width:100%;margin-top:20px;padding:14px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:16px;font-weight:600;cursor:pointer;transition:background .15s}.convert-btn:hover{background:var(--primary-hover)}.convert-btn:active{transform:scale(.99)}#progress-panel{margin-top:24px}.progress-bar{height:6px;background:var(--border);border-radius:100px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:100px;transition:width .2s ease;width:0%}.progress-label{font-size:13px;color:var(--text-muted);margin-top:8px;text-align:center}#result-panel{margin-top:24px;text-align:center}#result-preview{max-width:100%;max-height:220px;object-fit:contain;border-radius:var(--radius);border:1px solid var(--border);margin-bottom:20px;box-shadow:var(--shadow)}.result-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.download-btn{display:inline-block;padding:12px 28px;background:var(--success);color:#fff;border-radius:var(--radius);font-weight:600;text-decoration:none;font-size:15px;transition:opacity .15s}.download-btn:hover{opacity:.9}.convert-another-btn{background:var(--surface);border:1.5px solid var(--border);padding:12px 24px;border-radius:var(--radius);font-size:15px;cursor:pointer;color:var(--text);font-weight:500;transition:border-color .15s}.convert-another-btn:hover{border-color:var(--text)}.result-label{margin-top:12px;font-size:13px;color:var(--text-muted)}.error-card{background:var(--error-bg);border:1px solid var(--error-border);border-radius:var(--radius);padding:14px 16px;color:var(--error)}.warn-card{background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:var(--radius-sm);padding:12px 14px;color:var(--warn-text);font-size:13px;margin-top:12px}.coming-soon-panel{text-align:center;padding:48px 24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.coming-soon-panel h2{font-size:20px;font-weight:700;margin-bottom:8px}.coming-soon-panel p{color:var(--text-muted);margin-bottom:16px}.coming-soon-panel a{color:var(--primary);font-weight:500;text-decoration:none}.coming-soon-panel a:hover{text-decoration:underline}#home-grid{margin-top:32px}.converters-section{margin-bottom:24px}.section-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:10px}.converter-links{display:flex;flex-wrap:wrap;gap:8px}.converter-link{padding:7px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;text-decoration:none;color:var(--text);background:var(--surface);font-weight:500;transition:border-color .1s,color .1s}.converter-link:hover{border-color:var(--primary);color:var(--primary)}.converter-link.soon{color:var(--text-muted);pointer-events:none}footer{padding:24px;text-align:center;border-top:1px solid var(--border);background:var(--surface);color:var(--text-muted);font-size:13px}.hidden{display:none!important}@media(max-width:480px){main{padding:32px 16px 48px}.hero h1{font-size:22px}#dropzone{padding:36px 16px}}