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

:root {
    --primary-color: #60a5fa;
    --primary-hover: #3b82f6;
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --header-bg: #1e293b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-color);
    font-size: 16px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
}

.site-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.site-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Main Content */
.main-content {
    padding: 60px 0 100px;
    min-height: calc(100vh - 250px);
}

/* Category Sections */
.category-section {
    max-width: 800px;
    margin: 0 auto;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

/* Search Bar */
.search-container {
    margin-bottom: 24px;
}

.search-bar {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.search-bar:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-bar::placeholder {
    color: var(--text-secondary);
}

/* Links List */
.links-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.link-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.link-item:hover {
    background-color: var(--bg-secondary);
}

.link-title {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: color 0.2s;
}

.link-title:hover {
    color: var(--primary-hover);
}

.link-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 32px 0;
    text-align: center;
}

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

.footer a {
    color: var(--text-secondary);
    text-decoration: underline dashed;
    text-underline-offset: 3px;
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .site-title {
        font-size: 1.5rem;
    }

    .category-title {
        font-size: 1.5rem;
    }

    .link-item {
        padding: 10px 12px;
    }
}