/* Layout - Grid, Containers, Flex Utilities */

.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-main {
    flex: 1;
    padding-top: 20px;
    padding-bottom: 40px;
}

/* Content area with sidebar */
.content-area {
    display: flex;
    gap: 30px;
}

.content-main {
    flex: 1;
    min-width: 0;
}

.sidebar {
    width: 280px;
    flex-shrink: 0;
}

/* Flex grid system */
.row {
    display: flex;
    flex-wrap: wrap;
    margin-left: -15px;
    margin-right: -15px;
}

.col {
    padding-left: 15px;
    padding-right: 15px;
    flex: 1;
}

/* Listing grid */
.listing-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

@media (min-width: 544px) {
    .listing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .listing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .listing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .listing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Listing detail layout */
.listing-detail {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 768px) {
    .listing-detail {
        grid-template-columns: 1fr 300px;
        grid-template-rows: auto 1fr;
    }

    .listing-gallery {
        grid-column: 1;
        grid-row: 1;
    }

    .listing-info {
        grid-column: 1;
        grid-row: 2;
    }

    .listing-seller-sidebar {
        grid-column: 2;
        grid-row: 1 / -1;
    }
}

/* Listing browse */
.listing-browse {
    margin-top: 10px;
}

/* Chat CTA banner */
.listing-chat-cta {
    background: #f0f7ff;
    border: 1px solid #d0e3f7;
    border-radius: 6px;
    padding: 12px 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.chat-cta-icon {
    font-size: 1.2rem;
}

.chat-cta-link {
    color: #c73e3a;
    font-weight: 600;
    text-decoration: none;
}

.chat-cta-link:hover {
    text-decoration: underline;
}

/* Filter form */
.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 150px;
}

.filter-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: #666;
}

.filter-group input,
.filter-group select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
}

.filter-submit {
    display: flex;
    gap: 8px;
    flex: 0 0 auto;
}

/* Responsive sidebar collapse */
@media (max-width: 767px) {
    .content-area {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }
}

/* Home section spacing */
.home-listings {
    margin: 40px 0;
}

.home-listings-more {
    text-align: center;
    margin-top: 30px;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: 20px;
    text-align: center;
}

/* Error 404 */
.error-404 {
    text-align: center;
    padding: 80px 20px;
}

.error-404 h1 {
    font-size: 3rem;
    margin-bottom: 15px;
}

.error-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 25px;
}