:root{--primary:#4361ee;--primary-dark:#3a56d4;--primary-light:#eef2ff;--secondary:#f8f9fa;--text:#2b2d42;--text-light:#8d99ae;--border:#e9ecef;--success:#10b981;--success-hover:#0d9488;--error:#ef4444;--error-hover:#dc2626;--shadow:0 4px 20px rgba(0,0,0,0.08);--shadow-hover:0 8px 30px rgba(0,0,0,0.12);--radius:12px;--radius-lg:16px;--transition:all .3s ease}*{box-sizing:border-box;margin:0;padding:0}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;background-color:#f5f5f5}.containert{max-width:85%;margin:100px auto;background:white;padding:40px;border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}.header-t{text-align:center;margin-bottom:32px;padding-bottom:20px;border-bottom:2px solid var(--border)}.header-t h1{font-size:2rem;font-weight:700;line-height:1.3;margin-bottom:12px;color:var(--primary);display:flex;align-items:center;justify-content:center;gap:10px;font-family:"Noto Sans",sans-serif;text-align:center}.header-t p{color:var(--text-light);font-size:1rem;font-family:"Noto Sans",sans-serif;text-align:center;max-width:80%;margin-left:auto;margin-right:auto}.main-content{padding:0}.upload-section{border:2px dashed var(--border);padding:60px 40px;cursor:pointer;margin-bottom:24px;border-radius:var(--radius);background:var(--secondary);text-align:center;transition:var(--transition);position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center}.upload-section:hover{border-color:var(--primary);background:rgba(67,97,238,0.03);transform:translateY(-2px)}.upload-section.drag-over{border-color:var(--primary);background:rgba(67,97,238,0.05);transform:scale(1.01)}.upload-icon{font-size:64px;color:var(--primary);margin-bottom:20px;display:block}.upload-text{font-size:1.25rem;font-weight:600;margin-bottom:8px;color:var(--text);text-align:center}.upload-hint{color:var(--text-light);font-size:.9rem;margin-bottom:24px;text-align:center}.btn-upload{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;background:var(--primary);color:white;border:0;border-radius:var(--radius);font-weight:600;cursor:pointer;transition:var(--transition);gap:10px;font-size:1rem}.btn-upload:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px rgba(67,97,238,0.3)}#pdfInput{display:none}.controls-section{background:var(--secondary);padding:28px;border-radius:var(--radius);margin-bottom:24px;animation:fadeIn .3s ease}.slider-container{margin-bottom:0}.slider-header{display:flex;justify-content:space-between;margin-bottom:12px}.slider-label{font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px}.slider-label i{color:var(--primary)}.slider-value{font-weight:700;color:var(--primary);background:white;padding:4px 12px;border-radius:20px;font-size:.9rem}.slider{width:100%;height:8px;-webkit-appearance:none;appearance:none;background:var(--border);border-radius:4px;outline:0;margin:16px 0}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:var(--primary);border-radius:50%;cursor:pointer;transition:var(--transition)}.slider::-webkit-slider-thumb:hover{transform:scale(1.2);background:var(--primary-dark)}.slider-labels{display:flex;justify-content:space-between;margin-top:8px;font-size:.75rem;color:var(--text-light)}.action-buttons{margin-bottom:24px}.btn{width:100%;padding:16px;border:0;border-radius:var(--radius);cursor:pointer;font-weight:600;font-size:1rem;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:10px}.btn-primary{background:var(--primary);color:white}.btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px rgba(67,97,238,0.3)}.btn-success{background:var(--success);color:white}.btn-success:hover{background:var(--success-hover);transform:translateY(-2px);box-shadow:0 4px 12px rgba(16,185,129,0.3)}.btn:disabled{background:#adb5bd;cursor:not-allowed;transform:none;box-shadow:none}.btn:active:not(:disabled){transform:translateY(0)}.results-section{background:linear-gradient(135deg,var(--secondary) 0,white 100%);padding:28px;border-radius:var(--radius);margin-top:24px;animation:fadeIn .3s ease}.results-title{font-weight:700;font-size:1.1rem;margin-bottom:20px;display:flex;align-items:center;gap:10px;color:var(--primary);padding-bottom:12px;border-bottom:2px solid var(--border)}.results-title i{font-size:1.2rem}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:24px}.result-card{background:white;padding:20px;border-radius:var(--radius);text-align:center;box-shadow:0 2px 8px rgba(0,0,0,0.05);transition:var(--transition)}.result-card:hover{transform:translateY(-3px);box-shadow:0 4px 12px rgba(0,0,0,0.1)}.result-card.success{border-left:3px solid var(--success)}.result-icon{font-size:32px;color:var(--primary);margin-bottom:12px}.result-label{font-size:.85rem;color:var(--text-light);margin-bottom:8px}.result-value{font-size:1.3rem;font-weight:700;color:var(--text)}.compression-ratio{color:var(--success);font-size:1.5rem}.loading{display:none;text-align:center;padding:40px;background:rgba(255,255,255,0.95);border-radius:var(--radius);margin:20px 0;flex-direction:column;align-items:center;gap:16px}.spinner{width:50px;height:50px;border:4px solid rgba(67,97,238,0.1);border-radius:50%;border-top-color:var(--primary);animation:spin 1s ease-in-out infinite;margin:0 auto}.loading p{color:var(--text);font-size:.95rem;font-weight:500}.error-message{display:none;padding:16px 20px;background:#fee2e2;color:var(--error);border-radius:var(--radius);margin-bottom:24px;text-align:center;font-weight:500;border-left:4px solid var(--error);animation:fadeIn .3s ease}.toast{position:fixed;bottom:30px;right:30px;padding:16px 24px;border-radius:var(--radius);display:flex;align-items:center;gap:12px;z-index:1000;box-shadow:0 4px 20px rgba(0,0,0,0.15);animation:slideIn .3s ease forwards;max-width:400px;transform:translateX(100%);opacity:0}.toast.show{transform:translateX(0);opacity:1}.toast.success{background:linear-gradient(135deg,var(--success) 0,var(--success-hover) 100%);color:white}.toast.error{background:linear-gradient(135deg,var(--error) 0,var(--error-hover) 100%);color:white}.toast.info{background:linear-gradient(135deg,var(--primary) 0,var(--primary-dark) 100%);color:white}.toast-icon{font-size:1.2rem;font-weight:bold}.toast-message{font-size:.9rem;font-weight:500}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}.how-to-section-wrapper{max-width:1200px;margin:60px auto;padding:0 20px}.how-to-section-wrapper h2{font-family:'Space Grotesk',sans-serif;text-align:center;font-size:2rem;color:#333;margin-bottom:40px}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.step-card{background-color:#fff;padding:30px;border-radius:12px;border:1px solid #e9ecef;text-align:left;box-shadow:0 5px 15px rgba(0,0,0,0.05);transition:transform .3s ease,box-shadow .3s ease}.step-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,0.1)}.step-card .step-number{font-size:1.5rem;font-weight:700;color:#fff;background-color:#0d47a1;width:45px;height:45px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:20px}.step-card h3{font-family:'Space Grotesk',sans-serif;font-size:1.3rem;margin-bottom:10px;color:#222}.step-card p{color:#666;line-height:1.6;font-size:1rem;margin:0}.content-wrapper{max-width:1200px;margin:60px auto;padding:40px;background-color:#f8f9fa;border-radius:16px;border:1px solid #e9ecef;line-height:1.7;color:#333}.content-wrapper h2{font-size:1.8rem;font-weight:700;color:var(--primary);margin-top:40px;margin-bottom:20px;border-bottom:2px solid var(--border);padding-bottom:10px}.content-wrapper h2:first-child{margin-top:0}.content-wrapper h3{font-size:1.3rem;font-weight:600;color:var(--primary);margin-top:30px;margin-bottom:15px}.content-wrapper p{font-size:1rem;margin-bottom:1.5em;line-height:1.7;color:#555}.content-wrapper ul{list-style:none;padding-left:0;margin-bottom:2em}.content-wrapper ul li{position:relative;padding-left:28px;margin-bottom:15px;font-size:1rem;color:#444}.content-wrapper ul li i{position:absolute;left:0;top:4px;color:var(--success);font-size:1rem}.content-wrapper a{color:var(--primary);text-decoration:underline;font-weight:500;transition:color .2s ease}.content-wrapper a:hover{color:var(--primary-dark)}@media(max-width:1024px){.containert{max-width:95%;margin:80px auto;padding:30px}}@media(max-width:768px){.containert{max-width:100%;margin:60px 16px;padding:24px;border-radius:var(--radius)}.header-t h1{font-size:1.5rem}.header-t p{max-width:95%}.upload-section{padding:40px 24px}.upload-icon{font-size:48px}.upload-text{font-size:1.1rem}.upload-hint{font-size:.85rem}.btn-upload,.btn{padding:12px 24px;font-size:.9rem}.controls-section{padding:20px}.results-grid{grid-template-columns:1fr;gap:15px}.steps-grid{grid-template-columns:1fr;gap:20px}.how-to-section-wrapper h2{font-size:1.5rem}.content-wrapper{margin:40px 16px;padding:24px}.content-wrapper h2{font-size:1.5rem}.content-wrapper h3{font-size:1.2rem}.toast{left:20px;right:20px;bottom:20px;max-width:calc(100% - 40px)}}@media(max-width:480px){.containert{margin:40px 16px;padding:20px}.header-t h1{font-size:1.3rem}.upload-section{padding:32px 16px}.upload-icon{font-size:40px}.upload-text{font-size:1rem}.btn-upload,.btn{padding:10px 20px;font-size:.85rem}.step-card{padding:20px}.step-card h3{font-size:1.1rem}.step-card p{font-size:.9rem}.content-wrapper{padding:20px}}.text-center{text-align:center}.mt-20{margin-top:20px}.mb-20{margin-bottom:20px}.hidden{display:none}