.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding-top:80px}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.section{padding:var(--spacing-2xl) 0}.section-title{font-size:2.5rem;font-weight:700;color:var(--color-gray-900);margin-bottom:var(--spacing-lg);text-align:center}.section-subtitle{font-size:1.25rem;color:var(--color-gray-600);text-align:center;margin-bottom:var(--spacing-2xl)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);font-size:1rem;font-weight:600;border-radius:var(--border-radius-md);transition:all .2s 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.highlight{color:var(--color-secondary)}.hero-subtitle{font-size:1.25rem;margin-bottom:var(--spacing-xl);opacity:.95}.hero-actions{display:flex;gap:var(--spacing-md);justify-content:center;flex-wrap:wrap}.hero-actions .btn-hero-primary{background-color:#fff;color:var(--color-primary);border:2px solid #ffffff;font-weight:700;box-shadow:0 4px 12px #00000026}.hero-actions .btn-hero-primary:hover{background-color:#f8f9fa;color:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px #0003}.hero-actions .btn-hero-secondary{background-color:#ff6b35;color:#fff;border:2px solid #ff6b35;font-weight:700;box-shadow:0 4px 12px #ff6b354d}.hero-actions .btn-hero-secondary:hover{background-color:#ff5722;border-color:#ff5722;transform:translateY(-2px);box-shadow:0 6px 20px 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#00000026;transform:translateY(-2px)}.card-image{width:100%;height:200px;object-fit:cover;background:linear-gradient(135deg,#667eea,#764ba2)}.card-body{padding:1.5rem;display:flex;flex-direction:column;flex:1}.card-title{font-size:1.25rem;font-weight:700;color:#1a5490;margin-bottom:.75rem;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-text{font-size:.875rem;color:#666;line-height:1.5;margin-bottom:1rem;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.course-footer{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-top:1rem;border-top:1px solid #e5e7eb}.course-instructor{font-size:.875rem;color:#666}.course-price{font-size:1rem;font-weight:600;color:#1a5490}.course-progress-badge{font-size:.75rem;font-weight:600;color:#10b981;background:#d1fae5;padding:.25rem .75rem;border-radius:9999px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-size:.875rem;font-weight:600;border-radius:.5rem;text-decoration:none;transition:all .2s;border:none;cursor:pointer}.btn-primary{background:#1a5490;color:#fff}.btn-primary:hover{background:#154a7a;transform:translateY(-1px);box-shadow:0 4px 12px #1a54904d}.btn-buy-now{background:#10b981;color:#fff}.btn-buy-now:hover{background:#059669;transform:translateY(-1px);box-shadow:0 4px 12px #10b9814d}.btn-full{width:100%;margin-top:auto}.empty-state p{font-size:1.125rem;margin-bottom:1.5rem}@media (max-width: 768px){.page-title{font-size:2rem}.welcome-message{font-size:1.125rem}.page-subtitle{font-size:1rem}.section-title{font-size:1.5rem}.courses-grid{grid-template-columns:1fr}.section-header{flex-direction:column;align-items:flex-start;gap:1rem}}.my-courses-page{min-height:calc(100vh - 200px)}.my-courses-header{padding:3rem 0;background:linear-gradient(to 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ease}.navbar-link:hover{color:var(--color-primary)}.navbar-user{display:flex;align-items:center;gap:var(--spacing-md)}.user-name{color:var(--color-gray-700);font-weight:500}@media (max-width: 768px){.navbar-menu{gap:var(--spacing-sm)}.navbar-link{font-size:.875rem}.user-name{display:none}}.footer{background-color:var(--color-gray-900);color:var(--color-gray-300);padding:var(--spacing-2xl) 0 var(--spacing-lg);margin-top:auto}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-xl);margin-bottom:var(--spacing-xl)}.footer-section{display:flex;flex-direction:column}.footer-title{font-size:1.5rem;font-weight:700;color:var(--color-white);margin-bottom:var(--spacing-md)}.footer-heading{font-size:1.125rem;font-weight:600;color:var(--color-white);margin-bottom:var(--spacing-md)}.footer-text{color:var(--color-gray-400);line-height:1.6}.footer-links{list-style:none;display:flex;flex-direction:column;gap:var(--spacing-sm)}.footer-links a{color:var(--color-gray-400);transition:color .2s ease}.footer-links a:hover{color:var(--color-primary-light)}.footer-bottom{padding-top:var(--spacing-lg);border-top:1px solid var(--color-gray-800);text-align:center;color:var(--color-gray-500)}:root{--color-primary: #1a5490;--color-primary-dark: #0f3a5f;--color-primary-light: #2d7dd2;--color-secondary: #f39c12;--color-success: #27ae60;--color-error: #e74c3c;--color-warning: #f39c12;--color-info: #3498db;--color-white: #ffffff;--color-gray-50: #f9fafb;--color-gray-100: #f3f4f6;--color-gray-200: #e5e7eb;--color-gray-300: #d1d5db;--color-gray-400: #9ca3af;--color-gray-500: #6b7280;--color-gray-600: #4b5563;--color-gray-700: #374151;--color-gray-800: #1f2937;--color-gray-900: #111827;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--border-radius-sm: .25rem;--border-radius-md: .5rem;--border-radius-lg: .75rem;--border-radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--color-gray-900);background-color:var(--color-white);line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}a{color:var(--color-primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--color-primary-dark)}button{font-family:var(--font-family);cursor:pointer;border:none;outline:none;transition:all .2s ease}input,textarea,select{font-family:var(--font-family);outline:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-gray-100)}::-webkit-scrollbar-thumb{background:var(--color-gray-400);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--color-gray-500)}