:root {
    /* Pure black and white - no gradients, no glows */
    --bg: #ffffff;
    --card-bg: #ffffff;
    --card-border: #e5e5e5;
    --text-main: #111111;
    --text-muted: #666666;
    --input-bg: #ffffff;
    --tag-bg: #f5f5f5;
    --hover-bg: #f0f0f0;
    --active-bg: #000000;
    --active-text: #ffffff;
    --border-color: #dddddd;
}

/* Dark mode - also minimalist black and white */
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1a1a1a;
        --card-bg: #1a1a1a;
        --card-border: #333333;
        --text-main: #e5e5e5;
        --text-muted: #999999;
        --input-bg: #1a1a1a;
        --tag-bg: #2a2a2a;
        --hover-bg: #2a2a2a;
        --active-bg: #ffffff;
        --active-text: #000000;
        --border-color: #333333;
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.5;
    padding: 2rem 1rem;
}

/* Main container */
.app {
    max-width: 1000px;
    margin: 0 auto;
}

/* Header */
.top {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.top h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.top .sub {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Search Section */
.search-section {
    margin-bottom: 1.5rem;
}

.search-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

#searchInput {
    flex: 1;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0;
    background: var(--input-bg);
    color: var(--text-main);
    font-family: inherit;
    transition: border-color 0.2s ease;
}

#searchInput:focus {
    outline: none;
    border-color: var(--text-main);
}

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

.search-btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    background: var(--text-main);
    color: var(--bg);
    border: 1px solid var(--text-main);
    border-radius: 0;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.2s ease;
}

.search-btn:hover {
    background: var(--active-bg);
    color: var(--active-text);
    border-color: var(--active-bg);
}

/* Filter Sections */
.filter-section {
    margin-bottom: 1.5rem;
}

.filter-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-model, .filter-cat {
    background: var(--tag-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.4rem 0.9rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    border-radius: 0;
}

.filter-model:hover, .filter-cat:hover {
    background: var(--hover-bg);
    border-color: var(--text-main);
}

.filter-model.active, .filter-cat.active {
    background: var(--active-bg);
    color: var(--active-text);
    border-color: var(--active-bg);
}

/* Results count */
.meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 1rem 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

/* Results list */
.list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Result cards */
.result-card {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: background 0.2s ease;
}

.result-card:hover {
    background: var(--hover-bg);
    padding-left: 0.5rem;
}

.result-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.result-card .fru {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.8rem;
    background: var(--tag-bg);
    padding: 0.2rem 0.5rem;
    display: inline-block;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
}

.result-card .desc {
    font-size: 0.85rem;
    margin: 0.5rem 0;
    color: var(--text-muted);
    line-height: 1.4;
}

.result-card .meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.7rem;
    margin: 0.5rem 0 0 0;
    padding: 0;
    border: none;
}

.result-card .meta span {
    background: var(--tag-bg);
    padding: 0.2rem 0.6rem;
    border: 1px solid var(--border-color);
}

/* No results */
.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    background: var(--tag-bg);
}

/* Footer */
footer {
    margin-top: 2.5rem;
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    
    .search-wrapper {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    #searchInput {
        width: 100%;
    }
    
    .search-btn {
        width: 100%;
        padding: 0.7rem;
    }
    
    .filters {
        gap: 0.4rem;
    }
    
    .filter-model, .filter-cat {
        padding: 0.3rem 0.7rem;
        font-size: 0.7rem;
    }
    
    .result-card .meta {
        gap: 0.3rem;
    }
    
    .result-card .meta span {
        padding: 0.15rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .filter-label {
        font-size: 0.65rem;
    }
    
    .result-card h3 {
        font-size: 0.9rem;
    }
    
    .result-card .desc {
        font-size: 0.8rem;
    }
}