/* Global Styles */
:root {
    --primary-color: #ff6000;
    --primary-hover: #e55600;
    --secondary-color: #2d3e50;
    --bg-light: #f8f9fa;
    --text-dark: #333;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--text-dark);
}

footer {
    margin-top: auto;
}

a {
    text-decoration: none;
}

/* Navbar */
.navbar {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.navbar-brand {
    font-size: 1.5rem;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--secondary-color) !important;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Cards & Animations */
.card {
    border: none;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    background: #fff;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1) !important;
}

.book-card img {
    transition: transform 0.5s ease;
}

.book-card:hover img {
    transform: scale(1.05);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 96, 0, 0.3);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    border-radius: 8px;
    font-weight: 600;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* Forms */
.form-control {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(255, 96, 0, 0.15);
}

/* Footer */
.hover-white:hover {
    color: #fff !important;
    padding-left: 5px;
    transition: all 0.3s ease;
}

/* Utilities */
.text-primary {
    color: var(--primary-color) !important;
}

.shadow-sm {
    box-shadow: 0 2px 8px rgba(0,0,0,0.05) !important;
}

.shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.1) !important;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.main-content {
    animation: fadeIn 0.6s ease-out;
}

/* Footer Styles */
.footer-link {
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-color) !important;
    padding-left: 5px;
}

.social-icon-box {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icon-box:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 96, 0, 0.3);
}


/* Tabs */
.nav-pills .nav-link {
    color: var(--secondary-color);
    font-weight: 600;
    margin: 0 5px;
}

.nav-pills .nav-link.active {
    background-color: var(--primary-color);
    color: #fff;
}

/* Fav Button */
.fav-btn {
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    transition: all 0.2s;
    z-index: 10;
}

.fav-btn:hover {
    transform: scale(1.1);
}


/* Category Sidebar */
.category-sidebar .card {
    border: none;
    border-radius: 12px;
    overflow: hidden;
}

.category-sidebar .card-header {
    background-color: #fff;
    border-bottom: 1px solid #eee;
    padding: 1.2rem;
}

.category-sidebar .card-header h5 {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.1rem;
}

.category-sidebar .list-group-item {
    border: none;
    padding: 0.8rem 1.2rem;
    color: #666;
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.category-sidebar .list-group-item:hover {
    background-color: #fff5f0;
    color: var(--primary-color);
    padding-left: 1.5rem;
}

.category-sidebar .list-group-item.active {
    background-color: #fff5f0;
    color: var(--primary-color);
    border-color: transparent;
    border-left-color: var(--primary-color);
    font-weight: 700;
}

/* Search Bar in Books Page */
.search-input {
    border-radius: 20px 0 0 20px;
    border: 1px solid #eee;
    padding-left: 1.5rem;
}

.search-input:focus {
    box-shadow: none;
    border-color: var(--primary-color);
}

.search-btn {
    border-radius: 0 20px 20px 0;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}