:root{--primary:#4f46e5;--primary-hover:#4338ca;--secondary:#f3f4f6;--text:#111827;--text-light:#6b7280;--border:#bdc9e1;--bg-light:#f9fafb;--error:#ef4444;--success:#10b981;--warning:#f59e0b;--card-shadow:0 4px 6px #0000000d;--page-shadow:0 2px 4px #0000001a}
.home-icon{width:36px;height:36px;transition:transform .3s ease-in-out,filter .3s ease-in-out;padding:5px;border:2px solid #3C6AF2;border-radius:5px}
.home-icon:hover{transform:scale(1.2);filter:drop-shadow(2px 2px 4px #0003)}
.sp1{text-transform:none}
.containert{max-width:1200px;margin:100px auto;background:#fff;border-radius:16px;box-shadow:var(--page-shadow);overflow:hidden}
.main-content{padding:6px}
.upload-section{text-align:center;padding:48px;border:2px dashed var(--border);border-radius:12px;background-color:var(--bg-light);transition:all .3s ease;margin-bottom:24px;position:relative}
.upload-section.active{border-color:var(--primary);background-color:#4f46e50d}
.upload-icon{font-size:56px;color:var(--primary);margin-bottom:20px}
.upload-text{font-size:18px;color:var(--text);margin-bottom:12px;font-weight:500}
.upload-hint{font-size:14px;color:var(--text-light);margin-bottom:24px}
.main-content .btn-upload{display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s ease;background-color:var(--primary);color:#fff;border:none;outline:none;font-size:15px;gap:10px}
.main-content .btn-upload:hover{background-color:var(--primary-hover)}
#pdf-upload{display:none}
#fileInfo{width:100%;border: solid 1px #e5e5ea;}
.file-info{display:none;background:#fff;border-radius:12px;padding:20px;margin-bottom:24px;border:1px solid var(--border);align-items:center;gap:20px}
.file-details{flex:1}
.file-name{font-weight:600;margin-bottom:5px;word-break:break-all}
.file-size{color:var(--text-light);font-size:14px}
.file-remove{background:none;border:none;color:var(--error);cursor:pointer;font-size:17px}
.options-section{display:none;background:#fff;border-radius:12px;padding:24px;margin-bottom:24px;border:1px solid var(--border)}
.options-title{font-size:17px;font-weight:600;margin-bottom:20px;color:var(--text);display:flex;align-items:center;gap:10px}
.options-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.option-group{margin-bottom:15px}
.option-label{display:block;margin-bottom:8px;font-weight:500;color:var(--text)}
.option-select,.option-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;background-color:#fff;transition:all .2s ease}
.option-select:focus,.option-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}
.option-range{width:100%;margin-top:10px}
.range-value{display:inline-block;margin-left:10px;font-size:13px;color:var(--text-light)}
.option-checkbox{display:flex;align-items:center;gap:8px;margin-top:10px}
.option-checkbox input{width:16px;height:16px}
.preview-section{display:none;margin-bottom:24px;border-left: solid 1px #ddd;padding-left: 50px;}
.preview-container{display:flex;gap:20px;margin-top:20px}
.preview-nav{display:flex;flex-direction:column;gap:10px;min-width:200px}
.preview-nav-item{padding:10px 15px;border-radius:6px;cursor:pointer;transition:all .2s ease;border:1px solid var(--border);background:#fff}
.preview-nav-item:hover{border-color:var(--primary)}
.preview-nav-item.active{background-color:var(--primary);color:#fff;border-color:var(--primary)}
.preview-image-container{flex:1;border:1px solid var(--border);border-radius:8px;background:#fff;padding:20px;display:flex;align-items:center;justify-content:center;min-height:500px}
.preview-image{max-width:100%;max-height:100%;box-shadow:0 2px 10px #0000001a}
.action-buttons{display:none;justify-content:center;gap:20px;margin-top:32px;flex-wrap:wrap}
.main-content .btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;outline:none;font-size:15px;gap:5px;min-width: 225px;}
.main-content .btn-primary{background-color:var(--primary);color:#fff}
.main-content .btn-primary:hover{background-color:var(--primary-hover)}
.main-content .btn-secondary{background-color:#495057;color:#fff}
.main-content .btn-secondary:hover{background-color:#757575}
.main-content .btn-success{background-color:#1eb740;color:#fff}
.main-content .btn-success:hover{background-color:#0d9f6e}
.main-content .btn-warning{background-color:#d7a100;color:#fff}
.main-content .btn-warning:hover{background-color:#e67e22}
.loading{display:none;margin:24px 0;text-align:center;color:var(--primary)}
.loading-spinner{animation:spin 1s linear infinite;font-size:22px}
.error-message{display:none;padding:16px;background-color:#fee2e2;color:var(--error);border-radius:8px;margin-bottom:24px;text-align:center;font-weight:500}
.toast{position:fixed;bottom:20px;right:20px;padding:16px 24px;border-radius:8px;background-color:var(--primary);color:#fff;font-weight:500;box-shadow:0 4px 12px #00000026;transform:translateY(100px);opacity:0;transition:all .3s ease;z-index:1000}
.toast.show{transform:translateY(0);opacity:1}
.toast.error{background-color:var(--error)}
.toast.success{background-color:var(--success)}
@keyframes spin {
0%{transform:rotate(0deg)}
100%{transform:rotate(360deg)}
}
@media (max-width: 768px) {
.container{margin:20px auto;border-radius:0}
.main-content{padding:20px}
.upload-section{padding:30px 20px}
.options-grid{grid-template-columns:1fr}
.preview-container{flex-direction:column}
.preview-nav{flex-direction:row;overflow-x:auto;padding-bottom:10px;min-width:auto}
.preview-nav-item{min-width:60px;text-align:center}
}
.section-header{text-align:center;margin-bottom:20px}
.section-header h2{font-size:28px;font-weight:700;color:blue;font-family:"Noto Sans",sans-serif;margin-bottom:15px;line-height:1.3}
@media (max-width: 992px) {
.section-header h2{font-size:26px}
}
@media (max-width: 768px) {
.section-header h2{font-size:24px}
}
@media (max-width: 480px) {
.section-header h2{font-size:22px}
}