/* Apple-inspired color scheme */
:root {
    --color-primary: #5e7ce2;
    --color-secondary: #bf5af2;
    --color-success: #30d158;
    --color-warning: #ffd60a;
    --color-danger: #ff453a;
    --color-info: #64d2ff;
    --color-background: #f5f5f7;
    --color-card: #ffffff;
    --color-text: #1d1d1f;
    --color-text-secondary: #86868b;
    --color-border: #d2d2d7;
}

/* Base styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.5;
}

/* Utility classes for scrolling */
.scrollbar-hide {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

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

/* Category navigation buttons */
.category-button {
    display: inline-block;
    padding: 0.5rem 1rem;
    white-space: nowrap;
    font-weight: 500;
    border-radius: 9999px;
    transition: all 0.2s;
    color: var(--color-text);
}

.category-button:hover {
    background-color: var(--color-background);
    color: var(--color-primary);
}

/* Section headings */
.section-heading {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-heading::after {
    content: "";
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 4rem;
    height: 0.25rem;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    border-radius: 0.25rem;
}

.section-description {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

/* Tool cards */
.tool-card {
    background-color: var(--color-card);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.07), 0 4px 6px rgba(0, 0, 0, 0.05);
}

.tool-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.tool-card-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.popularity-badge {
    font-size: 0.875rem;
    background-color: var(--color-success);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-weight: 500;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    margin-bottom: auto;
}

.tag {
    font-size: 0.75rem;
    background-color: var(--color-background);
    color: var(--color-text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
}

.tool-link {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-primary);
    color: white;
    border-radius: 0.5rem;
    font-weight: 500;
    text-align: center;
    transition: background-color 0.2s;
}

.tool-link:hover {
    background-color: #4a6cd4;
}

/* Dark mode styles */
@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #1d1d1f;
        --color-card: #2c2c2e;
        --color-text: #f5f5f7;
        --color-text-secondary: #aeaeb2;
        --color-border: #3a3a3c;
    }

    .tag {
        background-color: #3a3a3c;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .section-heading {
        font-size: 1.5rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .tool-card {
        padding: 1.25rem;
    }
}

/* Chinese language specific styles */
.chinese-font {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}