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

:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #0f1535;
    --bg-tertiary: #151d42;
    --bg-glass: rgba(15, 21, 53, 0.7);
    --text-primary: #e0f2ff;
    --text-secondary: #7fb3d5;
    --accent-neon: #00d9ff;
    --accent-blue: #0088ff;
    --accent-purple: #6600ff;
    --accent-pink: #ff00ff;
    --accent-green: #00ff88;
    --border-color: rgba(0, 217, 255, 0.2);
    --shadow: 0 8px 32px rgba(0, 217, 255, 0.1);
    --glow: 0 0 20px rgba(0, 217, 255, 0.3);
}

html, body {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #0d0a20 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 217, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(102, 0, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.nav-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.3rem;
}

.logo-icon {
    font-size: 1.8rem;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
    }
    50% {
        text-shadow: 0 0 20px rgba(0, 217, 255, 0.8);
    }
}

.logo-text {
    background: linear-gradient(90deg, var(--accent-neon), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-tabs {
    display: flex;
    gap: 8px;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(0, 88, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
}

.nav-tab:hover {
    background: rgba(0, 217, 255, 0.15);
    border-color: var(--accent-neon);
    color: var(--accent-neon);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.2);
}

.nav-tab.active {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(0, 136, 255, 0.2));
    border-color: var(--accent-neon);
    color: var(--accent-neon);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

.tab-icon {
    font-size: 1.2rem;
}

/* ==================== TAB CONTENT ==================== */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== HEADER ==================== */
.header {
    max-width: 1600px;
    margin: 0 auto;
    padding: 40px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.header-content h1 {
    font-size: 2.5rem;
    background: linear-gradient(90deg, var(--accent-neon), var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.search-container {
    position: relative;
    width: 400px;
}

#searchInput {
    width: 100%;
    padding: 14px 20px;
    background: rgba(15, 21, 53, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Space Grotesk', sans-serif;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

#searchInput::placeholder {
    color: var(--text-secondary);
}

#searchInput:focus {
    outline: none;
    border-color: var(--accent-neon);
    background: rgba(0, 217, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 21, 53, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-top: 8px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    box-shadow: var(--shadow);
}

.search-results.active {
    display: block;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.search-result-item:hover {
    background: rgba(0, 217, 255, 0.15);
    padding-left: 20px;
}

.search-result-item img {
    width: 32px;
    height: 32px;
    image-rendering: pixelated;
}

/* ==================== STATS ==================== */
.stats-overview {
    max-width: 1600px;
    margin: 0 auto 40px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.stat-card {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 217, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-neon);
    box-shadow: var(--glow);
}

.stat-card:hover::before {
    left: 100%;
}

.stat-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    display: block;
    background: linear-gradient(90deg, var(--accent-neon), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ==================== MAIN CONTENT ==================== */
.main-content, .auctions-container, .merchant-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px 40px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 20px;
}

.merchant-container {
    grid-template-columns: 1fr;
}

/* ==================== SIDEBAR ==================== */
.sidebar {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar h2 {
    font-size: 1.2rem;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.categories-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(0, 88, 255, 0.1);
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category-item:hover {
    background: rgba(0, 217, 255, 0.15);
    border-color: var(--accent-neon);
    transform: translateX(4px);
}

.category-item.active {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.25), rgba(0, 136, 255, 0.25));
    border-color: var(--accent-neon);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.2);
}

.category-item img {
    width: 32px;
    height: 32px;
    image-rendering: pixelated;
}

/* ==================== ITEMS SECTION ==================== */
.items-section {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.section-header h2 {
    font-size: 1.3rem;
    background: linear-gradient(90deg, var(--accent-neon), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#sortSelect {
    padding: 10px 16px;
    background: rgba(0, 88, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: 'Space Grotesk', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
}

#sortSelect:hover {
    border-color: var(--accent-neon);
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.2);
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    max-height: 70vh;
    overflow-y: auto;
    padding-right: 10px;
}

.items-grid::-webkit-scrollbar {
    width: 8px;
}

.items-grid::-webkit-scrollbar-track {
    background: rgba(0, 217, 255, 0.1);
    border-radius: 4px;
}

.items-grid::-webkit-scrollbar-thumb {
    background: var(--accent-neon);
    border-radius: 4px;
}

.items-grid::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* ==================== ITEM CARD ==================== */
.item-card, .auction-card, .merchant-card {
    background: rgba(15, 21, 53, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.item-card::before, .auction-card::before, .merchant-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(102, 0, 255, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.item-card:hover, .auction-card:hover, .merchant-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-neon);
    box-shadow: 0 12px 30px rgba(0, 217, 255, 0.2);
}

.item-card:hover::before, .auction-card:hover::before, .merchant-card:hover::before {
    opacity: 1;
}

.item-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.item-header img {
    width: 40px;
    height: 40px;
    image-rendering: pixelated;
    border-radius: 8px;
}

.item-name {
    font-weight: 600;
    font-size: 0.95rem;
    word-break: break-word;
}

.item-prices {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.price-row.buy .price-amount {
    color: var(--accent-green);
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.price-row.sell .price-amount {
    color: var(--accent-pink);
    font-weight: 600;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.3);
}

.price-row .label {
    color: var(--text-secondary);
}

.spread-indicator {
    margin-top: 8px;
    padding: 6px 10px;
    background: rgba(0, 217, 255, 0.15);
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--accent-neon);
    text-align: center;
    font-weight: 600;
}

/* ==================== AUCTION CARD ==================== */
.auction-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auction-status {
    padding: 4px 10px;
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    border-radius: 6px;
    font-size: 0.75rem;
    color: #ff6b6b;
    font-weight: 600;
}

.auction-bid {
    display: flex;
    justify-content: space-between;
    padding: 8px;
    background: rgba(0, 136, 255, 0.1);
    border-radius: 6px;
}

.auction-bid.current {
    background: rgba(0, 217, 255, 0.15);
    border-left: 3px solid var(--accent-neon);
    padding-left: 5px;
}

.auction-bid-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.auction-bid-value {
    color: var(--accent-neon);
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.3);
}

/* ==================== MERCHANT GRID ==================== */
.merchant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    max-height: 80vh;
    overflow-y: auto;
    padding: 0 20px;
}

.merchant-card {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
}

.exchange-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.exchange-rate {
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-neon), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 12px 0;
}

/* ==================== MODAL ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 2000;
    overflow-y: auto;
    padding: 40px 20px;
    animation: fadeInBg 0.3s ease;
}

@keyframes fadeInBg {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal.active {
    display: block;
}

.modal-content {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    max-width: 900px;
    margin: 0 auto;
    border-radius: 20px;
    padding: 30px;
    position: relative;
    border: 1px solid var(--border-color);
    animation: slideUp 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 217, 255, 0.15);
}

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

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--accent-pink);
    border-color: var(--accent-pink);
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.3);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-icon {
    width: 64px;
    height: 64px;
    image-rendering: pixelated;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.8rem;
    background: linear-gradient(90deg, var(--accent-neon), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ==================== PRICE CARDS ==================== */
.price-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 30px;
}

.price-card {
    background: rgba(0, 88, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.price-card.buy {
    border-color: rgba(0, 255, 136, 0.3);
    background: rgba(0, 255, 136, 0.08);
}

.price-card.sell {
    border-color: rgba(255, 0, 255, 0.3);
    background: rgba(255, 0, 255, 0.08);
}

.price-card.spread {
    border-color: rgba(0, 217, 255, 0.3);
    background: rgba(0, 217, 255, 0.08);
}

.price-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glow);
}

.price-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.price-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
}

.price-card.buy .price-value {
    color: var(--accent-green);
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.4);
}

.price-card.sell .price-value {
    color: var(--accent-pink);
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.4);
}

.price-card.spread .price-value {
    color: var(--accent-neon);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.4);
}

.price-orders {
    display: block;
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 6px;
}

/* ==================== CHARTS ==================== */
.chart-section {
    margin-bottom: 30px;
}

.chart-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.chart-tab {
    padding: 10px 20px;
    background: rgba(0, 88, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
}

.chart-tab:hover {
    border-color: var(--accent-neon);
    background: rgba(0, 217, 255, 0.15);
    color: var(--accent-neon);
}

.chart-tab.active {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(0, 136, 255, 0.2));
    color: var(--accent-neon);
    border-color: var(--accent-neon);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.2);
}

.chart-container {
    background: rgba(0, 88, 255, 0.08);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-color);
    height: 300px;
}

/* ==================== HISTORY STATS ==================== */
.history-stats {
    margin-bottom: 30px;
}

.history-stats h3 {
    margin-bottom: 16px;
    color: var(--accent-neon);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.history-stat {
    background: rgba(0, 88, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 16px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.history-stat:hover {
    border-color: var(--accent-neon);
    background: rgba(0, 217, 255, 0.15);
}

.history-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.history-value {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-neon);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.3);
}

/* ==================== AUCTION DETAILS ==================== */
.auction-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.detail-group {
    background: rgba(0, 88, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.detail-group h3 {
    margin-bottom: 12px;
    color: var(--accent-neon);
    font-size: 1.1rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.detail-value {
    font-weight: 600;
    color: var(--text-primary);
}

.detail-value.highlight {
    color: var(--accent-neon);
    font-size: 1.2rem;
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.3);
}

.countdown {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-neon);
    padding: 20px;
    text-align: center;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.bid-history {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
}

.bid-item {
    padding: 10px;
    background: rgba(0, 136, 255, 0.1);
    border-left: 3px solid var(--accent-blue);
    border-radius: 6px;
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
}

.bid-amount {
    color: var(--accent-neon);
    font-weight: 600;
}

/* ==================== LOADING ==================== */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .main-content, .auctions-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        height: auto;
    }
    
    .categories-list {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .category-item {
        flex: 1 1 auto;
        min-width: 100px;
        justify-content: center;
        padding: 8px;
    }
    
    .price-cards {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .search-container {
        width: 100%;
    }
    
    .header-content h1 {
        font-size: 1.8rem;
    }
    
    .nav-content {
        flex-direction: column;
        gap: 16px;
    }
    
    .nav-tabs {
        width: 100%;
        justify-content: space-between;
    }
    
    .nav-tab {
        flex: 1;
        justify-content: center;
        font-size: 0.85rem;
        padding: 8px 12px;
    }
    
    .tab-text {
        display: none;
    }
    
    .items-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    
    .merchant-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .stats-overview {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .items-grid, .merchant-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        padding: 20px;
    }
    
    .price-cards {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}