/* Header Styles */
.main-header {
    background: rgba(13, 16, 24, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    height: 80px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-left {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: #8a8a8a;
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s;
    letter-spacing: 1px;
}

.nav-link:hover, .nav-link.active {
    color: #fff;
}

.nav-link .icon-box::before { content: "📦"; } /* Placeholder icon */
.nav-link .icon-inventory::before { content: "🎒"; } /* Placeholder icon */

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-nick {
    color: #fff;
    font-weight: 600;
    font-size: 14px;
}

.user-avatar img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid #fff136;
}

.balance-btn {
    background: #fff136;
    color: #000;
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: 800;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: transform 0.2s;
}

.balance-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 241, 54, 0.3);
}

.icon-wallet::before { content: "💰"; } /* Placeholder icon */

/* Inventory Styles */
.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.inventory-item-card {
    background: linear-gradient(145deg, #1a1a1c 0%, #121214 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.inventory-item-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 241, 54, 0.2);
}

.card-image {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    position: relative;
}

.card-image img {
    max-width: 100%;
    max-height: 100%;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    transition: transform 0.3s;
}

.inventory-item-card:hover .card-image img {
    transform: scale(1.1) rotate(2deg);
}

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

.card-title {
    color: #e0e0e0;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-price {
    color: #fff136;
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 15px;
}

.claim-btn {
    background: #2a2a2d;
    color: #888;
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.claim-btn:hover {
    background: #353538;
    color: #aaa;
}

.timer-display {
    color: #fff136;
    font-size: 11px;
    font-family: 'Courier New', monospace;
    display: flex;
    align-items: center;
    gap: 4px;
}