/* Base Variables */
:root {
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --text-primary: #333333;
    --text-secondary: #717171;
    --border-radius: 20px;
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    --spacing: 1rem;
}

/* Base Styles */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

/* Layout Containers */
.container-fluid {
    padding: 0 1rem;
    max-width: 1440px;
    margin: 0 auto;
}

/* Header Styles */
.site-header {
    padding: 1.5rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.logo-container {
    max-width: 180px;
    transition: var(--transition);
}

.logo-container img {
    max-width: 100%;
    height: auto;
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding-bottom: 5rem;
}

/* Product Cards */
.product-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 1rem;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    background-color: transparent;
    border-bottom: none;
    padding: 0;
}

.seller-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
}

.seller-image {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: contain;
    border: 1px solid #eee;
    padding: 5px;
}

.seller-details {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.seller-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.seller-name {
    font-weight: 600;
    font-size: 0.85rem;
}

.timestamp {
    font-size: 0.75rem;
    color: var(--text-secondary);
    max-width: 100px;
    text-align: end;
}

/* Card Image */
.product-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0.5rem 0 1.5rem;
    height: 180px;
    position: relative;
}

.product-image {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    border-radius: 12px;
    transition: var(--transition);
}

/* Product Details */
.product-title {
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    margin: 0.5rem 0 1rem;
    height: 3rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.5;
}

.product-pricing {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1rem;
}

.price-before {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: line-through;
    margin-bottom: 0.25rem;
}

.price-now-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.price-now {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--default-color);
    margin-bottom: 0.25rem;
}

.payment-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 1rem;
}

/* Coupon Styles */
.coupon-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border: 2px dashed #d4d4d4;
    border-radius: 15px;
    margin-bottom: 1rem;
    width: 100%;
    background: none;
    cursor: pointer;
    transition: var(--transition);
}

.coupon-button:hover {
    border-color: var(--default-color);
    background-color: rgba(255, 98, 1, 0.05);
}

.coupon-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.coupon-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.coupon-code {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.copy-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Action Buttons */
.action-button {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--default-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    margin-top: 0.5rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.action-button:hover {
    background-color: var(--default-color-hover);
    transform: translateY(-2px);
}

.action-icon {
    margin-left: 0.5rem;
}

.alert-message {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 1rem;
}

/* Modal Styles */
.promo-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--card-bg);
    margin: 20% auto 0;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 420px;
    box-shadow: var(--shadow);
    transform: translateY(0);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: none;
    padding: 0;
}

.modal-product {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-image {
    width: 70px;
    height: 70px;
    border-radius: 12px;
    object-fit: contain;
}

.modal-title {
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-secondary);
    transition: var(--transition);
}

.modal-close:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}

.modal-body {
    margin-bottom: 1.5rem;
}

.modal-divider {
    height: 1px;
    background-color: #eee;
    margin: 1rem 0;
}

.modal-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.attention-text {
    font-weight: 600;
    color: var(--default-color);
    text-align: center;
    margin: 0.5rem 0;
}

.modal-instruction {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Utility Classes */
.flex-grow {
    flex-grow: 1;
}

.text-center {
    text-align: center;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 2rem 0;
}

.empty-state-image {
    max-width: 300px;
    width: 100%;
    border-radius: 20px;
    margin: 1rem auto;
}

.empty-state-message {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* Loading Spinner for Infinite Scroll */
.loading-spinner {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 98, 1, 0.1);
    border-radius: 50%;
    border-left-color: var(--default-color);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--default-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 100;
    border: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--default-color-hover);
    transform: translateY(-5px);
}

/* Responsive Media Queries */
@media (min-width: 576px) {
    .container-fluid {
        padding: 0 1.5rem;
    }

    .logo-container {
        max-width: 200px;
    }

    .modal-content {
        margin: 15% auto 0;
    }
}

@media (min-width: 768px) {
    .container-fluid {
        padding: 0 2rem;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 2rem;
    }

    .modal-content {
        margin: 10% auto 0;
    }
}

@media (min-width: 992px) {
    .container-fluid {
        padding: 0 3rem;
    }

    .logo-container {
        max-width: 220px;
    }
}

/* Share Section */
.share-section {
    margin-top: 2rem;
    text-align: center;
}

.share-button {
    background-color: transparent;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.share-button:hover,
.share-button:focus {
    background-color: #f5f5f5;
    border-color: #ccc;
}

.back-link {
    text-decoration: none !important;
}