:root{--primary-color: #4cd9f4;--primary-hover: #2bc5e0;--secondary-color: #ff2592;--secondary-hover: #e0206e;--accent-color: #4cd9f4;--accent-hover: #2bc5e0;--success-color: #28a745;--warning-color: #ffc107;--error-color: #dc3545;--info-color: var(--secondary-color);--text-color: #333;--text-light: #777;--text-muted: #999;--white: #fff;--bg-light: #f8f9fa;--bg-gray: #e9ecef;--bg-dark: #343a40;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .15);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .2);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-xxl: 3rem;--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 12px;--transition-fast: .2s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--white);font-size:16px}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2;margin-bottom:var(--spacing-md)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.1rem}h6{font-size:1rem}p{margin-bottom:var(--spacing-md)}a{color:var(--primary-color);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-hover)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-primary{color:var(--primary-color)}.text-secondary{color:var(--secondary-color)}.text-accent{color:var(--accent-color)}.text-muted{color:var(--text-muted)}.text-white{color:var(--white)}.bg-primary{background-color:var(--primary-color)}.bg-secondary{background-color:var(--secondary-color)}.bg-accent{background-color:var(--accent-color)}.bg-light{background-color:var(--bg-light)}.bg-white{background-color:var(--white)}.mb-0{margin-bottom:0}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.mb-5{margin-bottom:var(--spacing-xl)}.mt-0{margin-top:0}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}.mt-5{margin-top:var(--spacing-xl)}.p-0{padding:0}.p-1{padding:var(--spacing-xs)}.p-2{padding:var(--spacing-sm)}.p-3{padding:var(--spacing-md)}.p-4{padding:var(--spacing-lg)}.p-5{padding:var(--spacing-xl)}.d-none{display:none}.d-block{display:block}.d-flex{display:flex}.d-grid{display:grid}.flex-column{flex-direction:column}.flex-row{flex-direction:row}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-around{justify-content:space-around}.align-center{align-items:center}.align-start{align-items:flex-start}.align-end{align-items:flex-end}.w-100{width:100%}.h-100{height:100%}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--border-radius-md);font-size:1rem;font-weight:500;text-decoration:none;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none;box-shadow:var(--shadow-sm)}.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:var(--shadow-sm)}.btn-primary{background-color:var(--primary-color);color:var(--white)}.btn-primary:hover{background-color:var(--primary-hover);color:var(--white)}.btn-accent{background-color:var(--accent-color);color:var(--white)}.btn-accent:hover{background-color:var(--accent-hover);color:var(--white)}.btn-secondary{background-color:var(--white);color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background-color:var(--primary-color);color:var(--white)}.btn-sm{padding:var(--spacing-xs) var(--spacing-md);font-size:.875rem}.btn-lg{padding:var(--spacing-md) var(--spacing-xl);font-size:1.125rem}.form-control{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:2px solid var(--bg-gray);border-radius:var(--border-radius-md);font-size:1rem;transition:border-color var(--transition-fast)}.form-control:focus{outline:none;border-color:var(--secondary-color);box-shadow:0 0 0 3px #6eb5ff1a}.form-control::placeholder{color:var(--text-muted)}.card{background-color:var(--white);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow var(--transition-fast)}.card:hover{box-shadow:var(--shadow-md)}.card-header{padding:var(--spacing-lg);border-bottom:1px solid var(--bg-gray)}.card-body{padding:var(--spacing-lg)}.card-footer{padding:var(--spacing-lg);border-top:1px solid var(--bg-gray);background-color:var(--bg-light)}.grid{display:grid;gap:var(--spacing-lg)}.grid-cols-1{grid-template-columns:repeat(1,1fr)}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-4{grid-template-columns:repeat(4,1fr)}@media (max-width: 768px){.container{padding:0 var(--spacing-sm)}.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:repeat(1,1fr)}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.25rem}}@media (min-width: 769px) and (max-width: 1024px){.grid-cols-3,.grid-cols-4{grid-template-columns:repeat(2,1fr)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.fade-in{animation:fadeIn .6s ease-out}.pulse{animation:pulse 2s infinite}.loader{width:40px;height:40px;border:4px solid var(--bg-gray);border-top:4px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}