:root{--primary-color: #e6f7ff;--secondary-color: #fa8c16;--text-color: #333;--bg-color: #fff;--border-color: #e8e8e8;--shadow: 0 2px 8px rgba(0, 0, 0, .15)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;color:var(--text-color);background-color:var(--bg-color)}#root{width:100%;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 20px}@media (max-width: 768px){.container{padding:0 10px}}.btn-primary{background-color:var(--secondary-color)!important;border-color:var(--secondary-color)!important;color:#fff!important}.btn-primary:hover{background-color:#ff7a45!important;border-color:#ff7a45!important}.card{transition:all .3s ease}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.navbar{background-color:var(--primary-color);box-shadow:0 2px 8px #0000001a}.carousel,.category-section,.books-section{margin-bottom:40px}.footer{background-color:var(--primary-color);padding:40px 0;margin-top:60px}