/* Modern Kitap Evi Tema - CSS Variables */
:root {
    /* Ana Renk Paleti */
    --primary-color: #2c3e50;
    --primary-light: #34495e;
    --primary-dark: #1a252f;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --info-color: #17a2b8;
    
    /* Nötr Renkler */
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Gradyanlar */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), #5dade2);
    --gradient-accent: linear-gradient(135deg, var(--accent-color), #f1948a);
    
    /* Gölgeler */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --shadow-xl: 0 2rem 4rem rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Genel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-100);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.1rem; }

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

/* Main Content */
.main-content {
    padding-top: 120px; /* Navbar yüksekliği + daha fazla boşluk */
    min-height: 100vh;
}

/* Ana sayfa için özel padding - normal olsun */
body.home .main-content {
    padding-top: 0; /* Ana sayfa için padding yok */
    margin-top: 0;
}

/* Ana sayfa hero section */
body.home .hero-section,
body.home .hero-slider {
    margin-top: 0;
    padding-top: 0;
}

/* Page Content Spacing */
.page-content {
    padding-top: 3rem; /* Daha fazla üst boşluk */
    padding-bottom: 2rem;
}

/* Ana sayfa için page-content padding'i azalt */
body.home .page-content {
    padding-top: 1rem; /* Ana sayfa için daha az padding */
}

/* Section Spacing */
section {
    padding: 4rem 0; /* Daha fazla section boşluğu */
}

/* Ana sayfa için section padding'i azalt */
body.home section {
    padding: 2rem 0; /* Ana sayfa için daha az section boşluğu */
}

/* Card Content Spacing */
.card-body {
    padding: 2.5rem; /* Daha fazla card içi boşluk */
}

/* Terms and Privacy Pages */
.terms-content, .privacy-content {
    padding: 3rem 0; /* Daha fazla içerik boşluğu */
    line-height: 1.8;
}

/* Quantity Input Styling */
.quantity-input-group {
    display: flex;
    align-items: center;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    overflow: hidden;
    background: white;
}

.quantity-input-group .btn {
    border: none;
    background: #f8f9fa;
    color: #495057;
    font-weight: bold;
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

.quantity-input-group .btn:hover {
    background: #e9ecef;
    color: #007bff;
}

.quantity-input-group .btn:focus {
    box-shadow: none;
    outline: none;
}

.quantity-input-group .form-control {
    border: none;
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: #495057;
    background: white;
    padding: 0.5rem 0.75rem;
    min-width: 60px;
}

.quantity-input-group .form-control:focus {
    box-shadow: none;
    border: none;
    outline: none;
}

/* Stok durumu badge */
.stock-badge {
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
}

/* Navigation */
.navbar {
    background: var(--gradient-primary) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    transition: var(--transition);
}

.navbar-brand:hover {
    transform: translateY(-2px);
}

.navbar-brand img {
    transition: var(--transition);
    border-radius: var(--border-radius);
}

.navbar-brand:hover img {
    transform: scale(1.05);
    box-shadow: var(--shadow);
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.75rem 1rem !important;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover::before {
    left: 100%;
}

.navbar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Badge */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
    border-radius: var(--border-radius);
    font-size: 0.75rem;
}

/* Cards */
.card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: var(--white);
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: var(--gradient-primary);
    color: var(--white) !important;
    border: none;
    padding: 1.25rem;
    font-weight: 600;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.card-header h5,
.card-header h6,
.card-header .mb-0 {
    color: var(--white) !important;
    font-weight: 600;
}

.card-header i {
    color: var(--white) !important;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background: var(--gray-100);
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* Buttons */
.btn {
    font-weight: 500;
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
    text-transform: none;
    letter-spacing: 0.025em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: var(--transition);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-outline-secondary {
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--secondary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Forms */
.form-control, .form-select {
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.25);
    background: var(--white);
}

.form-label {
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.input-group .form-control:focus {
    z-index: 3;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.alert::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: currentColor;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1, #bee5eb);
    color: #0c5460;
    border-left: 4px solid var(--info-color);
}

/* Tables */
.table {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th {
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    font-weight: 600;
    padding: 1rem;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.table td {
    padding: 1rem;
    border-color: var(--gray-200);
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background-color: var(--gray-100);
    transform: scale(1.01);
    transition: var(--transition);
}

/* Hero Section */
.hero-slider {
    position: relative;
    overflow: hidden;
    border-radius: 0 0 var(--border-radius-xl) var(--border-radius-xl);
    margin-top: 0;
}

.hero-slide {
    color: var(--white);
    padding: 6rem 0;
    position: relative;
    min-height: 80vh;
    margin-top: 0;
    display: flex;
    align-items: center;
    background: var(--gradient-primary);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: var(--white);
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.8);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--white);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
    line-height: 1.6;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    text-shadow: none;
    font-weight: 600;
    border-radius: var(--border-radius);
    padding: 12px 24px;
    font-size: 1.1rem;
}

/* Carousel */
.carousel-indicators [data-bs-target] {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    margin: 0 5px;
    transition: var(--transition);
}

.carousel-indicators .active {
    background: var(--white);
    transform: scale(1.2);
}

.carousel-control-prev,
.carousel-control-next {
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    transition: var(--transition);
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    background: rgba(0, 0, 0, 0.5);
    transform: translateY(-50%) scale(1.1);
}

/* Book Cards */
.book-card {
    transition: var(--transition);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow);
}

.book-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.book-card .card-img-top {
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

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

.book-card .card-body {
    padding: 1.5rem;
}

.book-card .card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--dark-color);
}

.book-card .card-text {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.book-card .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.book-card .price .old-price {
    font-size: 1rem;
    color: var(--gray-500);
    text-decoration: line-through;
    margin-right: 0.5rem;
}

/* Footer */
footer {
    background: var(--gradient-primary) !important;
    color: var(--white) !important;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.95), rgba(52, 73, 94, 0.95));
    z-index: 1;
}

footer .container {
    position: relative;
    z-index: 2;
}

footer h5, footer h6 {
    color: var(--white) !important;
    font-weight: 600;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

footer p, footer a {
    color: rgba(255, 255, 255, 0.9) !important;
    text-decoration: none;
    transition: var(--transition);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

footer a:hover {
    color: var(--white) !important;
    transform: translateX(5px);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

footer .social-links a {
    display: inline-block;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    text-align: center;
    line-height: 45px;
    margin-right: 10px;
    margin-bottom: 10px;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

footer .social-links a:hover {
    background: var(--white);
    color: var(--primary-color) !important;
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

footer .contact-info p {
    margin-bottom: 0.75rem;
}

footer .contact-info i {
    color: var(--white);
    width: 20px;
    text-align: center;
}

footer hr {
    border-color: rgba(255, 255, 255, 0.2);
    margin: 2rem 0;
}

footer .list-unstyled li {
    margin-bottom: 0.5rem;
}

footer .list-unstyled a {
    display: block;
    padding: 0.25rem 0;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

footer .list-unstyled a:hover {
    background: rgba(255, 255, 255, 0.1);
    padding-left: 0.5rem;
}

/* Utilities */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: var(--gradient-primary);
}

.bg-gradient-secondary {
    background: var(--gradient-secondary);
}

.bg-gradient-accent {
    background: var(--gradient-accent);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

.slide-up {
    animation: fadeInUp 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-buttons .btn {
        margin-bottom: 0.5rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
    }
    
    .table-responsive {
        border-radius: var(--border-radius-lg);
    }
    
    /* Mobil filtre stilleri */
    .collapse {
        transition: all 0.3s ease;
    }
    
    .collapse.show {
        animation: slideDown 0.3s ease;
    }
    
    .collapse:not(.show) {
        animation: slideUp 0.3s ease;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    @keyframes slideUp {
        from {
            opacity: 1;
            transform: translateY(0);
        }
        to {
            opacity: 0;
            transform: translateY(-10px);
        }
    }
    
    /* Mobil filtre butonu */
    .btn[data-bs-toggle="collapse"] {
        border-radius: var(--border-radius-lg);
        font-weight: 500;
        box-shadow: var(--shadow);
    }
    
    .btn[data-bs-toggle="collapse"]:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }
    
    /* Mobil form stilleri */
    .collapse .form-control,
    .collapse .form-select {
        border-radius: var(--border-radius);
        border: 2px solid var(--gray-300);
    }
    
    .collapse .form-control:focus,
    .collapse .form-select:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.25);
    }
    
    /* Mobil kitap kartları */
    .book-card {
        border-radius: var(--border-radius);
        transition: var(--transition);
    }
    
    .book-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }
    
    .book-card .card-img-top {
        border-radius: var(--border-radius) var(--border-radius) 0 0;
    }
    
    .book-card .badge {
        font-size: 0.65rem !important;
        padding: 0.25em 0.5em;
    }
    
    .book-card .btn-sm {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    /* Mobil grid düzeni */
    @media (max-width: 576px) {
        .book-item {
            padding-left: 0.25rem;
            padding-right: 0.25rem;
        }
        
        .book-card .card-body {
            padding: 0.5rem !important;
        }
        
        .book-card .card-footer {
            padding: 0.5rem !important;
        }
        
        .book-card .card-title {
            font-size: 0.8rem !important;
            line-height: 1.1 !important;
        }
        
        .book-card .card-text {
            font-size: 0.7rem !important;
        }
        
        .book-card .btn-sm {
            font-size: 0.7rem;
            padding: 0.25rem 0.5rem;
        }
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-slide {
        padding: 4rem 0;
        min-height: 60vh;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-200);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Focus States */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.25);
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .btn,
    .carousel-control-prev,
    .carousel-control-next {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
    
    body {
        background: white !important;
    }
}
}