:root{--primary: #c0362c;--primary-dark: #a02d24;--secondary: #f97316;--background: #ffffff;--surface: #f8fafc;--border: #e2e8f0;--text-primary: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--background);color:var(--text-primary);line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;font-family:inherit}input,select,textarea{font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:var(--background);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-content{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1200px;margin:0 auto;padding:0 20px}.logo{display:flex;align-items:center;gap:8px;font-size:24px;font-weight:700;color:var(--primary)}.logo-icon{width:32px;height:32px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}.nav{display:flex;align-items:center;gap:32px}.nav-link{font-size:14px;font-weight:500;color:var(--text-secondary);transition:color .2s}.nav-link:hover{color:var(--primary)}.hero{background:linear-gradient(135deg,#fef2f2,#fff7ed);padding:80px 20px;text-align:center}.hero h1{font-size:48px;font-weight:800;color:var(--text-primary);margin-bottom:16px}.hero p{font-size:18px;color:var(--text-secondary);max-width:600px;margin:0 auto}.privacy-banner{display:inline-flex;align-items:center;gap:10px;margin-top:28px;padding:14px 24px;background:#fff;border:2px solid var(--primary);border-radius:12px;box-shadow:0 4px 16px #00000014;color:var(--primary);font-size:16px;font-weight:600;max-width:720px;text-align:left;line-height:1.6}.privacy-banner svg{flex-shrink:0}.tools-section{padding:60px 20px;max-width:1200px;margin:0 auto}.section-title{font-size:14px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:24px}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}.tool-card{background:var(--background);border:1px solid var(--border);border-radius:12px;padding:24px;text-align:center;transition:all .2s;cursor:pointer}.tool-card:hover{border-color:var(--primary);box-shadow:0 4px 20px #c0362c1a;transform:translateY(-2px)}.tool-icon{width:64px;height:64px;margin:0 auto 16px;background:#fef2f2;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--primary)}.tool-card h3{font-size:16px;font-weight:600;margin-bottom:8px}.tool-card p{font-size:13px;color:var(--text-secondary)}.tool-page{max-width:900px;margin:0 auto;padding:40px 20px}.tool-page-header{text-align:center;margin-bottom:40px}.tool-page-header h1{font-size:32px;font-weight:700;margin-bottom:8px}.tool-page-header p{color:var(--text-secondary)}.dropzone{border:2px dashed var(--border);border-radius:16px;padding:60px 40px;text-align:center;background:var(--surface);transition:all .2s;cursor:pointer}.dropzone:hover,.dropzone.active{border-color:var(--primary);background:#fef2f2}.dropzone-icon{width:80px;height:80px;margin:0 auto 20px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);box-shadow:0 2px 10px #0000001a}.dropzone h3{font-size:20px;margin-bottom:8px}.dropzone p{color:var(--text-secondary);margin-bottom:16px}.dropzone-btn{display:inline-block;background:var(--primary);color:#fff;padding:12px 32px;border-radius:8px;font-weight:600;transition:background .2s}.dropzone-btn:hover{background:var(--primary-dark)}.file-list{margin-top:24px}.file-item{display:flex;align-items:center;gap:16px;padding:16px;background:var(--surface);border-radius:8px;margin-bottom:12px}.file-icon{width:48px;height:48px;background:#fef2f2;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--primary)}.file-info{flex:1}.file-name{font-weight:600;margin-bottom:4px}.file-size{font-size:13px;color:var(--text-secondary)}.file-remove{width:32px;height:32px;border-radius:50%;background:transparent;color:var(--text-muted);display:flex;align-items:center;justify-content:center;transition:all .2s}.file-remove:hover{background:#fee2e2;color:var(--primary)}.action-bar{display:flex;justify-content:center;gap:16px;margin-top:32px}.btn{padding:14px 32px;border-radius:8px;font-size:16px;font-weight:600;transition:all .2s;display:inline-flex;align-items:center;gap:8px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:disabled{background:#fca5a5;cursor:not-allowed}.btn-secondary{background:var(--surface);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.result-card{background:#f0fdf4;border:1px solid #86efac;border-radius:12px;padding:24px;text-align:center;margin-top:24px}.result-card h3{color:#166534;margin-bottom:8px}.result-card p{color:#15803d;margin-bottom:16px}.preview-container{margin-top:24px;background:var(--surface);border-radius:12px;padding:20px;max-height:400px;overflow:auto}.preview-controls{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.preview-controls h3{font-size:14px;color:var(--text-secondary)}.rotate-btn{width:40px;height:40px;border-radius:8px;background:#fff;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all .2s}.rotate-btn:hover{border-color:var(--primary);color:var(--primary)}.options-panel{background:var(--surface);border-radius:12px;padding:24px;margin-top:24px}.options-panel h3{font-size:14px;font-weight:600;margin-bottom:16px}.option-group{margin-bottom:16px}.option-group label{display:block;font-size:14px;font-weight:500;margin-bottom:8px}.option-group input[type=text],.option-group input[type=password],.option-group select{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px}.option-group input[type=range]{width:100%}.footer{background:var(--surface);border-top:1px solid var(--border);padding:40px 20px;margin-top:80px}.footer-content{max-width:1200px;margin:0 auto;text-align:center}.footer p{color:var(--text-secondary);font-size:14px}.loading{display:flex;flex-direction:column;align-items:center;gap:16px;padding:40px}.spinner{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}