:root {
    --primary: #405DE6; /* Instagram blue */
    --primary-light: #E6F0FF;
    --secondary: #8E8E8E; /* Instagram gray */
    --background: #FAFAFA; /* Instagram bg */
    --card-bg: #FFFFFF;
    --text: #262626; /* Instagram dark text */
    --text-light: #8E8E8E;
    --border: #DBDBDB; /* Instagram border */
    --danger: #ED4956; /* Instagram red */
    --success: #28a745;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --instagram-gradient: linear-gradient(45deg, #405DE6, #5851DB, #833AB4, #C13584, #E1306C, #FD1D1D);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.5;
    margin: 0;
    padding: 0;
}

.main-container {
    max-width: 935px;
    margin: 0 auto;
    padding: 15px;
}

/* Search Header */
.search-header {
    position: sticky;
    top: 0;
    background-color: var(--background);
    padding: 15px 0;
    z-index: 10;
    border-bottom: 1px solid var(--border);
}

.search-form {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.search-input-container {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 12px 45px 12px 15px;
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
    background-color: var(--card-bg);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(64, 93, 230, 0.2);
}

.search-button {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--secondary);
    cursor: pointer;
}

.search-results-count {
    text-align: center;
    margin: 15px 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Tabs */
.results-tabs {
    display: flex;
    justify-content: center;
    margin: 20px 0;
    border-bottom: 1px solid var(--border);
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-light);
    position: relative;
}

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

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

/* Grid Layout */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

/* Shop Cards */
.shop-card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    text-decoration: none;
    color: var(--text);
}

.shop-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.shop-media {
    width: 100%;
    height: 0;
    padding-bottom: 100%;
    position: relative;
    overflow: hidden;
}

.shop-media img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.shop-info {
    padding: 12px;
}

.shop-name {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shop-location {
    font-size: 0.8rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    margin-bottom: 5px;
}

.shop-location i {
    margin-right: 5px;
    font-size: 0.7rem;
}

/* Item Cards */
.item-card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    aspect-ratio: 1/1;
}

.item-link {
    display: block;
    height: 100%;
    position: relative;
    text-decoration: none;
    color: var(--text);
}

.item-media-container {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.item-media-container img,
.item-media-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    font-size: 0.7rem;
}

.item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 12px;
    opacity: 0;
    transition: var(--transition);
}

.item-card:hover .item-overlay {
    opacity: 1;
}

.item-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    margin: 0 0 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-price {
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
}

/* Categories */
.categories-section {
    margin: 30px 0;
}

.categories-title {
    font-size: 1.2rem;
    text-align: center;
    color: var(--text);
    margin-bottom: 15px;
}

.categories-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text);
    width: 100px;
}

.category-image {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--border);
    transition: var(--transition);
}

.category-item:hover .category-image {
    transform: scale(1.1);
    border-color: var(--primary);
}

.category-name {
    margin-top: 8px;
    font-size: 0.85rem;
    text-align: center;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    background-color: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px dashed var(--border);
    grid-column: 1 / -1;
}

.empty-state i {
    font-size: 2.5rem;
    color: var(--border);
    margin-bottom: 15px;
    opacity: 0.7;
}

.empty-state h3 {
    margin: 0 0 10px;
    font-size: 1.2rem;
    color: var(--text);
}

/* Responsive Design */
@media (min-width: 640px) {
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }

    .category-item {
        width: 120px;
    }

    .category-image {
        width: 90px;
        height: 90px;
    }
}

@media (min-width: 768px) {
    .main-container {
        padding: 20px;
    }
}

@media (min-width: 1024px) {
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

@media (max-width: 639px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}

@media (max-width: 400px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
}