/* ===== Reusable Components ===== */

/* Auth Page Styles */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.auth-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
    overflow: hidden;
}

.auth-header {
    text-align: center;
    padding: 32px 32px 24px;
}

.auth-logo {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
}

.auth-tabs {
    display: flex;
    border-bottom: 2px solid #E5E7EB;
}

.auth-tab {
    flex: 1;
    padding: 16px;
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.auth-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.auth-body {
    padding: 32px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input {
    padding: 12px 16px;
    border: 2px solid #E5E7EB;
    border-radius: var(--radius);
    font-size: 15px;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-error {
    background: #FEE2E2;
    color: var(--error);
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    display: none;
}

.form-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 8px 0;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #E5E7EB;
}

.form-divider span {
    color: var(--text-secondary);
    font-size: 14px;
}

.google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 12px 24px;
    border: 2px solid #E5E7EB;
    border-radius: var(--radius);
    font-weight: 600;
    transition: var(--transition);
    background: white;
}

.google-btn:hover {
    border-color: var(--primary);
    background: var(--bg-hover);
}

.forgot-password {
    text-align: right;
    font-size: 14px;
    color: var(--primary);
    cursor: pointer;
}

.forgot-password:hover {
    text-decoration: underline;
}

/* Cart Page Styles */
.cart-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px;
}

.cart-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 32px;
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cart-item {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    display: grid;
    grid-template-columns: 100px 1fr auto auto auto;
    gap: 20px;
    align-items: center;
    box-shadow: var(--shadow);
}

.cart-item-image {
    width: 100px;
    height: 140px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.cart-item-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cart-item-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.cart-item-author {
    font-size: 14px;
    color: var(--text-secondary);
}

.cart-item-price {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-hover);
    padding: 8px;
    border-radius: var(--radius);
}

.quantity-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.quantity-btn:hover {
    background: var(--primary);
    color: white;
}

.quantity-value {
    font-weight: 600;
    min-width: 24px;
    text-align: center;
}

.cart-item-total {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.cart-item-remove {
    padding: 8px;
    color: var(--error);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.cart-item-remove:hover {
    background: #FEE2E2;
}

#cart-summary {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 100px;
}

#cart-summary h2 {
    font-size: 20px;
    margin-bottom: 20px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #E5E7EB;
}

.summary-total {
    font-size: 18px;
    font-weight: 700;
    border-bottom: none;
    padding-top: 16px;
}

.free-shipping-notice {
    font-size: 13px;
    color: var(--success);
    margin: 8px 0;
}

.empty-cart {
    text-align: center;
    padding: 80px 24px;
}

.empty-cart svg {
    margin: 0 auto 24px;
    color: var(--text-light);
}

.empty-cart h2 {
    font-size: 24px;
    margin-bottom: 12px;
}

.empty-cart p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Book Detail Page */
.book-detail-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px;
}

.book-detail-layout {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 48px;
}

.book-detail-image {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.book-detail-info h1 {
    font-family: var(--font-display);
    font-size: 36px;
    margin-bottom: 12px;
}

.book-detail-author {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.book-detail-price {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 24px;
}

.book-detail-description {
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.book-detail-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--bg-hover);
    border-radius: var(--radius);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-value {
    font-weight: 600;
}

.book-actions {
    display: flex;
    gap: 16px;
}

/* Checkout Page */
.checkout-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px;
}

.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 32px;
}

.checkout-section {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}

.checkout-section h2 {
    font-size: 24px;
    margin-bottom: 24px;
}

#card-element {
    padding: 16px;
    border: 2px solid #E5E7EB;
    border-radius: var(--radius);
    background: white;
}

#card-errors {
    color: var(--error);
    font-size: 14px;
    margin-top: 8px;
}

.order-summary {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.summary-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
    max-height: 400px;
    overflow-y: auto;
}

.summary-item {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: 12px;
    align-items: center;
}

.summary-item img {
    width: 60px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.summary-item-info h4 {
    font-size: 14px;
    margin-bottom: 4px;
}

.summary-item-info p {
    font-size: 12px;
    color: var(--text-secondary);
}

.summary-item-price {
    font-weight: 700;
}

.summary-totals {
    border-top: 2px solid #E5E7EB;
    padding-top: 16px;
}

/* Admin Panel */
.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 48px 24px;
}

.admin-header {
    margin-bottom: 32px;
}

.admin-header h1 {
    font-size: 32px;
    margin-bottom: 8px;
}

#dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 16px;
    align-items: center;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-content h3 {
    font-size: 28px;
    margin-bottom: 4px;
}

.stat-content p {
    font-size: 14px;
    color: var(--text-secondary);
}

.orders-section {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}

.orders-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.filter-buttons {
    display: flex;
    gap: 8px;
}

.filter-btn {
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    background: var(--bg-hover);
    transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary);
    color: white;
}

.orders-table {
    width: 100%;
    border-collapse: collapse;
}

.orders-table th {
    text-align: left;
    padding: 12px;
    border-bottom: 2px solid #E5E7EB;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
}

.orders-table td {
    padding: 16px 12px;
    border-bottom: 1px solid #E5E7EB;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 600;
}

.btn-icon {
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--bg-hover);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    opacity: 1;
}

.modal-content {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid #E5E7EB;
}

.modal-header h2 {
    font-size: 24px;
}

.modal-close {
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-hover);
}

.modal-body {
    padding: 24px;
}

.order-detail-section {
    margin-bottom: 24px;
}

.order-detail-section h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.order-detail-section p {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.order-items-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.order-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-hover);
    border-radius: var(--radius);
}

.order-item img {
    width: 60px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.order-item-info h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.order-item-info p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
    .cart-layout,
    .checkout-layout,
    .book-detail-layout {
        grid-template-columns: 1fr;
    }
    
    #cart-summary,
    .order-summary {
        position: static;
    }
}

@media (max-width: 768px) {
    .cart-item {
        grid-template-columns: 80px 1fr;
        gap: 12px;
    }
    
    .cart-item-quantity,
    .cart-item-total {
        grid-column: 2;
    }
    
    .cart-item-remove {
        grid-column: 2;
        justify-self: end;
    }
}

/* Payment Methods */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.payment-method-card {
    cursor: pointer;
}

.payment-method-card input {
    display: none;
}

.payment-method-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.payment-method-card input:checked + .payment-method-content {
    border-color: var(--primary);
    background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
}

.payment-icon {
    flex-shrink: 0;
}

.payment-details {
    display: flex;
    flex-direction: column;
}

.payment-name {
    font-weight: 600;
    color: var(--text-primary);
}

.payment-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.payment-note {
    background: #FEF3C7;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    color: #92400E;
    margin-bottom: 1rem;
}

.secure-checkout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.75rem;
    background: #D1FAE5;
    border-radius: 8px;
    color: #065F46;
    font-weight: 500;
}

/* Demo Warning */
.demo-warning {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: #FEF2F2;
    border: 2px solid #EF4444;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    color: #991B1B;
    font-size: 0.875rem;
    line-height: 1.5;
}

.demo-warning svg {
    flex-shrink: 0;
    color: #EF4444;
}

/* Payment Tabs */
.payment-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.payment-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.payment-tab input {
    display: none;
}

.payment-tab.active {
    border-color: var(--primary);
    background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
}

.tab-icon {
    font-size: 1.5rem;
}

.tab-text {
    font-weight: 500;
    font-size: 0.875rem;
}

.card-brands {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.brand-badge {
    padding: 0.25rem 0.75rem;
    background: #f3f4f6;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.stripe-element-wrapper {
    margin-bottom: 1rem;
}

.stripe-element-wrapper label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

#card-element {
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    background: white;
}

.card-error {
    color: #EF4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.security-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    padding: 1rem;
    background: #F0FDF4;
    border-radius: 8px;
    font-size: 0.75rem;
    color: #166534;
    margin-top: 1rem;
}

.paypal-info, .cod-info {
    text-align: center;
    padding: 2rem;
    background: #f9fafb;
    border-radius: 12px;
}

.cod-info ul {
    list-style: none;
    padding: 0;
    text-align: left;
    margin-top: 1rem;
}

.cod-info li {
    padding: 0.5rem 0;
    color: #374151;
}

.trust-badges {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #6B7280;
}

/* Login Required */
.login-required {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-required-content {
    text-align: center;
    max-width: 400px;
    animation: fadeInUp 0.5s ease;
}

.login-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 2s infinite;
}

.login-required h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.login-required p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.login-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}