:root {
    --bg-color: #0d0d12;
    --card-bg: rgba(255, 255, 255, 0.05);
    --accent-color: #6366f1;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

.app {
    padding: 16px;
    max-width: 600px;
    margin: 0 auto;
    padding-bottom: 40px;
}

/* Header/Filters */
.filters {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--card-bg);
    padding: 4px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.filter-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn.active {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Categories */
.categories {
    display: flex;
    overflow-x: auto;
    gap: 8px;
    margin-bottom: 24px;
    padding-bottom: 8px;
    scrollbar-width: none;
}

.categories::-webkit-scrollbar {
    display: none;
}

.category-btn {
    white-space: nowrap;
    padding: 8px 16px;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.category-btn.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

/* Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(8px);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-image-wrapper {
    position: relative;
    aspect-ratio: 2/3;
    overflow: hidden;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.card:active {
    transform: scale(0.97);
}

.card-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--accent-gradient);
    color: white;
    font-size: 10px;
    font-weight: 800;
    padding: 4px 8px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.card-body {
    padding: 12px;
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-btn {
    width: 100%;
    padding: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 10px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.card-btn:active {
    background: var(--accent-gradient);
}

/* States */
.loading,
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    margin: 0 auto 16px;
    animation: spin 1s linear infinite;
}

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

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