:root{--color-primary:#193c76;--color-primary-light:#2a5494;--color-accent:#2b9f6f;--color-accent-light:#3bb983;--color-yellow:#edd25f;--color-bg:#ffffff;--color-fg:#1a1a2e;--color-muted:#6b7280;--color-border:#e5e7eb;--color-card:#ffffff;--shadow-popup:0 20px 60px -10px rgba(25, 60, 118, 0.3);--transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);--gradient-primary:linear-gradient(135deg, #193c76, #2a5494);--gradient-accent:linear-gradient(135deg, #2b9f6f, #3bb983);}  *{margin:0;padding:0;box-sizing:border-box;} body{font-family:'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;background:linear-gradient(135deg, #f5f7fa 0%, #e8eef5 100%);color:var(--color-fg);line-height:1.6;min-height:100vh;}  .container{width:100%;max-width:1200px;margin:0 auto;padding:4rem 1rem;} .content-wrapper{max-width:1000px;margin:0 auto;}  .header{text-align:center;margin-bottom:3rem;} .header h1{font-size:3.5rem;font-weight:800;color:var(--color-primary);margin-bottom:1rem;} .subtitle{font-size:1.25rem;color:var(--color-muted);max-width:700px;margin:0 auto;}  .button-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));gap:1.5rem;margin-bottom:4rem;} .demo-card{position:relative;background:var(--color-card);border:2px solid var(--color-border);border-radius:1rem;padding:2rem;cursor:pointer;overflow:hidden;transition:var(--transition);text-align:center;} .demo-card:hover{transform:scale(1.02);box-shadow:var(--shadow-popup);} .demo-card:active{transform:scale(0.98);} .card-gradient{position:absolute;inset:0;background:var(--gradient-primary);opacity:0;transition:var(--transition);} .accent-gradient{background:var(--gradient-accent);} .login-gradient{background:linear-gradient(135deg, rgba(237, 210, 95, 0.1), rgba(25, 60, 118, 0.1));} .demo-card:hover .card-gradient{opacity:0.1;} .card-content{position:relative;z-index:1;} .card-icon{width:4rem;height:4rem;margin:0 auto 1rem;background:rgba(25, 60, 118, 0.1);border-radius:1rem;display:flex;align-items:center;justify-content:center;color:var(--color-primary);transition:var(--transition);} .accent-icon{background:rgba(43, 159, 111, 0.1);color:var(--color-accent);} .login-icon{background:rgba(237, 210, 95, 0.1);color:var(--color-yellow);} .demo-card:hover .card-icon{transform:scale(1.1);} .card-content h3{font-size:1.5rem;font-weight:700;margin-bottom:0.5rem;color:var(--color-fg);} .card-desc{color:var(--color-muted);margin-bottom:1rem;} .card-cta{display:inline-block;padding:0.5rem 1rem;background:rgba(25, 60, 118, 0.1);color:var(--color-primary);font-weight:600;border-radius:0.5rem;transition:var(--transition);} .accent-cta{background:rgba(43, 159, 111, 0.1);color:var(--color-accent);} .login-cta{background:rgba(237, 210, 95, 0.1);color:var(--color-yellow);} .demo-card:hover .card-cta{background:var(--color-primary);color:white;} .demo-card:hover .accent-cta{background:var(--color-accent);color:white;} .demo-card:hover .login-cta{background:var(--color-yellow);color:white;}  .features-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));gap:1.5rem;margin-top:4rem;} .feature-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:0.75rem;padding:1.5rem;text-align:center;transition:var(--transition);} .feature-card:hover{border-color:rgba(25, 60, 118, 0.3);} .feature-icon{font-size:2.5rem;margin-bottom:0.5rem;} .feature-card h4{font-weight:700;margin-bottom:0.25rem;} .feature-card p{font-size:0.875rem;color:var(--color-muted);}  .popup-overlay{position:fixed;inset:0;background:rgba(0, 0, 0, 0.6);backdrop-filter:blur(8px);display:none;align-items:center;justify-content:center;padding:1rem;z-index:1000;animation:fadeIn 0.3s ease-out;} .popup-overlay.active{display:flex;} .popup-container{position:relative;background:var(--color-bg);border-radius:1.5rem;box-shadow:var(--shadow-popup);max-width:900px;width:100%;max-height:90vh;overflow-y:auto;animation:scaleIn 0.3s ease-out;} .login-container{max-width:400px;} .close-btn{position:absolute;top:1rem;right:1rem;width:2.5rem;height:2.5rem;border-radius:50%;border:1px solid var(--color-border);background:rgba(255, 255, 255, 0.9);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition);z-index:10;} .close-btn:hover{background:var(--color-border);transform:scale(1.1) rotate(90deg);} .popup-content{padding:2rem;}  .product-content{display:grid;grid-template-columns:1fr;gap:2rem;} @media (min-width:768px){.product-content{grid-template-columns:1fr 1fr;}} .product-gallery{display:flex;flex-direction:column;} .main-image{position:relative;aspect-ratio:1;height:auto;width:100%;max-height:400px;border-radius:0.75rem;overflow:hidden;border:4px solid rgba(25, 60, 118, 0.2);} .main-image img{width:100%;height:100%;object-fit:contain;transition:transform 0.5s ease;} .main-image:hover img{transform:scale(1.1);} .thumbnails{display:grid;grid-template-columns:repeat(auto-fill, minmax(60px, 1fr));gap:0.5rem;margin-top:1rem;max-width:100%;} .thumbnail{aspect-ratio:1;border-radius:0.5rem;overflow:hidden;border:2px solid var(--color-border);cursor:pointer;transition:var(--transition);padding:0;background:none;} .thumbnail:hover{transform:scale(1.05);} .thumbnail.active{border-color:var(--color-primary);box-shadow:0 4px 12px rgba(25, 60, 118, 0.3);} .thumbnail img{width:100%;height:100%;object-fit:cover;} .product-details{display:flex;flex-direction:column;justify-content:center;} .product-details h2{font-size:1.5rem;line-height:1.4;margin-bottom:1rem;} .product-features{margin-bottom:1.5rem;color:var(--color-muted);} .product-features p{margin-bottom:0.5rem;} .add-to-cart-btn{width:100%;padding:1rem 1.5rem;background:var(--gradient-primary);color:white;font-weight:600;border:none;border-radius:0.75rem;cursor:pointer;transition:var(--transition);} .add-to-cart-btn:hover{transform:scale(1.02);box-shadow:0 8px 20px rgba(25, 60, 118, 0.3);} .add-to-cart-btn:active{transform:scale(0.98);}  .image-title{text-align:center;font-size:1.75rem;margin-bottom:1.5rem;} .image-wrapper{border-radius:0.75rem;overflow:hidden;} .image-wrapper img{width:100%;height:auto;max-height:75vh;object-fit:contain;transition:transform 0.5s ease;} .image-wrapper:hover img{transform:scale(1.05);}  .login-content{position:relative;background-repeat:no-repeat;background-position:center;background-size:contain;} .login-content::before{content:'';position:absolute;inset:0;background:inherit;opacity:0.05;pointer-events:none;} .login-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.5rem;} .login-header h2{font-size:1.25rem;font-weight:700;margin-bottom:0.25rem;} .login-hint{font-size:0.875rem;color:var(--color-muted);} .register-link{color:var(--color-yellow);text-decoration:none;font-weight:500;font-size:0.9rem;margin-left:0.5rem;white-space:nowrap;} .register-link:hover{text-decoration:underline;}  .form-group{margin-bottom:1rem;} .input-wrapper{position:relative;} .form-input{width:100%;padding:0.875rem 1rem;border:1px solid var(--color-border);border-radius:0.5rem;font-family:inherit;font-size:1rem;transition:var(--transition);} .form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(25, 60, 118, 0.1);} .form-input:disabled{background:rgba(0, 0, 0, 0.03);cursor:not-allowed;} .input-hint{font-size:0.75rem;color:var(--color-muted);margin-top:0.25rem;} .edit-icon, .toggle-password{position:absolute;right:0.75rem;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--color-muted);cursor:pointer;padding:0.25rem;transition:var(--transition);} .edit-icon:hover, .toggle-password:hover{color:var(--color-primary);}  .btn-next{width:100%;padding:0.875rem 1.5rem;background:linear-gradient(180deg, #e9eef7, #dee7f3);color:rgba(0, 0, 0, 0.45);border:none;border-radius:0.75rem;font-weight:700;font-size:1rem;cursor:pointer;transition:var(--transition);margin-bottom:1rem;} .btn-next:disabled{opacity:0.5;cursor:not-allowed;} .btn-next:not(:disabled):hover{background:linear-gradient(180deg, #dee7f3, #d5dfe9);} .btn-login{width:100%;padding:0.875rem 1.5rem;background:var(--gradient-primary);color:white;border:none;border-radius:0.75rem;font-weight:700;font-size:1rem;cursor:pointer;transition:var(--transition);margin-bottom:1rem;} .btn-login:hover{opacity:0.9;transform:translateY(-1px);} .forgot-password{text-align:right;margin-bottom:1rem;} .forgot-password a{color:var(--color-yellow);text-decoration:none;font-size:0.875rem;} .forgot-password a:hover{text-decoration:underline;} .separator{display:flex;align-items:center;gap:0.75rem;margin:1.5rem 0;color:var(--color-muted);font-size:0.875rem;} .separator::before, .separator::after{content:'';flex:1;height:1px;background:var(--color-border);} .separator span{transition:var(--transition);} .separator:hover span{color:var(--color-primary);} .google-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:0.75rem;padding:0.75rem 1rem;border:1px solid var(--color-border);border-radius:0.5rem;background:white;font-weight:600;cursor:pointer;transition:var(--transition);} .google-btn:hover{background:rgba(0, 0, 0, 0.02);} .google-icon{width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;background:rgba(0, 0, 0, 0.03);border-radius:0.375rem;} .google-icon img{width:1.25rem;height:1.25rem;} .google-text span{transition:color 0.3s ease;} .google-btn:hover .google-text span:nth-child(1){color:#4285f4;} .google-btn:hover .google-text span:nth-child(2){color:#ea4335;} .google-btn:hover .google-text span:nth-child(3){color:#fbbc05;} .google-btn:hover .google-text span:nth-child(4){color:#4285f4;} .google-btn:hover .google-text span:nth-child(5){color:#34a853;} .google-btn:hover .google-text span:nth-child(6){color:#ea4335;} .card-decor{position:absolute;left:50%;transform:translateX(-50%);bottom:-1.75rem;width:16rem;height:2.5rem;background:radial-gradient(closest-side, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.01));filter:blur(12px);border-radius:50%;z-index:-1;}  .skeleton-loader{animation:fadeIn 0.3s ease-out;} .skeleton-main, .skeleton-thumb, .skeleton-image, .skeleton-line, .skeleton-input{background:linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);background-size:200% 100%;animation:shimmer 2s infinite;border-radius:0.75rem;}  .skeleton-main{aspect-ratio:1;margin-bottom:1rem;} .skeleton-thumbnails{display:grid;grid-template-columns:repeat(5, 1fr);gap:0.5rem;} .skeleton-thumb{aspect-ratio:1;}  .skeleton-image{width:100%;height:70vh;}  .skeleton-line{height:2rem;margin-bottom:0.5rem;} .skeleton-line.short{width:75%;height:1rem;margin-bottom:1.5rem;} .skeleton-input{height:3rem;margin-bottom:1rem;}  @keyframes fadeIn{from{opacity:0;} to{opacity:1;}} @keyframes scaleIn{from{opacity:0;transform:scale(0.95);} to{opacity:1;transform:scale(1);}} @keyframes shimmer{0%{background-position:-200% 0;} 100%{background-position:200% 0;}} .fade-in{animation:fadeIn 0.5s ease-out;} .slide-up{animation:slideUp 0.6s ease-out;} @keyframes slideUp{from{opacity:0;transform:translateY(20px);} to{opacity:1;transform:translateY(0);}}   @media (max-width:1024px){.popup-container{max-width:95%;} .main-image{max-height:350px;}}  @media (max-width:768px){.header h1{font-size:2.5rem;} .subtitle{font-size:1rem;} .button-grid{grid-template-columns:1fr;gap:1rem;} .popup-overlay{padding:0.5rem;} .popup-container{border-radius:1rem;max-height:95vh;} .popup-content{padding:1.5rem;} .close-btn{top:0.75rem;right:0.75rem;width:2rem;height:2rem;} .close-btn svg{width:16px;height:16px;}  .product-content{gap:1.5rem;} .main-image{max-height:300px;border-width:2px;} .thumbnails{grid-template-columns:repeat(auto-fill, minmax(50px, 1fr));gap:0.375rem;} .product-details h2{font-size:1.25rem;}  .login-header{flex-direction:column;gap:0.5rem;} .login-header h2{font-size:1.125rem;} .register-link{margin-left:0;} .form-input{font-size:0.9375rem;padding:0.75rem 0.875rem;}}  @media (max-width:600px){.container{padding:2rem 0.75rem;} .header h1{font-size:2rem;} .demo-card{padding:1.5rem;} .card-icon{width:3rem;height:3rem;} .popup-overlay{padding:0.25rem;align-items:flex-start;padding-top:1rem;} .popup-container{margin:auto 0;} .popup-content{padding:1.25rem;} .close-btn{top:0.5rem;right:0.5rem;}  .main-image{max-height:250px;} .main-image:hover img{transform:none;} .thumbnails{grid-template-columns:repeat(4, 1fr);} .thumbnail:hover{transform:none;} .product-details h2{font-size:1.125rem;} .product-features{font-size:0.875rem;} .add-to-cart-btn{padding:0.875rem 1.25rem;font-size:0.9375rem;}  .image-title{font-size:1.25rem;} .image-wrapper img{max-height:60vh;} .image-wrapper:hover img{transform:none;}  .login-container{max-width:100%;} .btn-next, .btn-login{padding:0.75rem 1.25rem;font-size:0.9375rem;} .google-btn{padding:0.625rem 0.875rem;font-size:0.9375rem;} .google-icon{width:1.75rem;height:1.75rem;} .separator{margin:1.25rem 0;font-size:0.8125rem;}}  @media (max-width:480px){.header h1{font-size:1.75rem;} .subtitle{font-size:0.9375rem;} .features-grid{grid-template-columns:1fr;gap:1rem;} .popup-container{border-radius:0.75rem;} .popup-content{padding:1rem;}  .main-image{max-height:220px;border-radius:0.5rem;} .thumbnails{grid-template-columns:repeat(3, 1fr);margin-top:0.75rem;} .thumbnail{border-radius:0.375rem;} .skeleton-thumbnails{grid-template-columns:repeat(3, 1fr);}  .login-header h2{font-size:1rem;} .login-hint{font-size:0.8125rem;} .form-input{padding:0.625rem 0.75rem;font-size:0.875rem;} .input-hint{font-size:0.6875rem;} .card-decor{width:12rem;height:2rem;}}  @media (max-width:360px){.header h1{font-size:1.5rem;} .popup-overlay{padding:0;} .popup-container{border-radius:0;max-height:100vh;} .close-btn{width:1.75rem;height:1.75rem;} .main-image{max-height:200px;} .thumbnails{grid-template-columns:repeat(3, 1fr);gap:0.25rem;} .product-details h2{font-size:1rem;} .login-container{border-radius:0;}}  @media (max-height:600px) and (orientation:landscape){.popup-overlay{align-items:flex-start;padding:0.5rem;} .popup-container{margin:0 auto;max-height:95vh;} .popup-content{padding:1rem;} .main-image{max-height:200px;} .product-content{gap:1rem;} .skeleton-main{max-height:200px;}}