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

:root {
    --color-bg: #0d1117;
    --color-text: #c9d1d9;
    --color-text-muted: #8b949e;
    --color-link: #58a6ff;
    --color-link-hover: #79c0ff;
    --color-border: #30363d;
    --color-accent: #1f6feb;
    --font-main: 'Fira Code', 'Monaco', 'Menlo', monospace;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    line-height: 1.6;
    font-size: 16px;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(88, 166, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(31, 111, 235, 0.05) 0%, transparent 50%);
}

.container {
    max-width: 700px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 20px;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-link);
    text-transform: lowercase;
}

.social-links {
    display: flex;
    gap: 20px;
    list-style: none;
}

.social-links a {
    color: var(--color-link);
    text-decoration: none;
    font-size: 12px;
    transition: all 0.2s;
    text-transform: lowercase;
    font-weight: 500;
}

.social-links a::before {
    content: '[ ';
}

.social-links a::after {
    content: ' ]';
}

.social-links a:hover {
    color: var(--color-link-hover);
    text-shadow: 0 0 8px rgba(88, 166, 255, 0.5);
}

/* Intro */
.intro {
    margin-bottom: 40px;
    line-height: 1.8;
    font-size: 15px;
    background: rgba(30, 30, 30, 0.5);
    border-left: 2px solid var(--color-accent);
    padding: 16px;
    border-radius: 2px;
}

.intro p {
    color: var(--color-text);
}

.intro p::before {
    content: '// ';
    color: var(--color-text-muted);
    margin-right: 4px;
}

/* Filters */
.filters {
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    align-items: center;
    font-size: 14px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-link);
    cursor: pointer;
    padding: 5px 8px;
    font-family: var(--font-main);
    font-size: 12px;
    transition: all 0.2s;
    text-transform: lowercase;
    border-radius: 2px;
}

.filter-btn:hover {
    color: var(--color-link-hover);
    border-color: var(--color-link-hover);
    background: rgba(88, 166, 255, 0.1);
}

.filter-btn.active {
    color: var(--color-text);
    background: var(--color-accent);
    border-color: var(--color-accent);
    font-weight: 600;
}

.filter-count {
    color: var(--color-text-muted);
    font-size: 13px;
}

/* Content List */
.content-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.content-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 20px;
    align-items: start;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--color-border);
    transition: opacity 0.2s;
}

.content-item.hidden {
    display: none;
}

.item-date {
    font-size: 12px;
    color: var(--color-text-muted);
    white-space: nowrap;
    text-transform: lowercase;
}

.item-date::before {
    content: '[ ';
    color: var(--color-accent);
}

.item-date::after {
    content: ' ]';
    color: var(--color-accent);
}

.item-title {
    font-size: 16px;
    margin-bottom: 8px;
}

.item-title a {
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s;
    position: relative;
}

.item-title a::before {
    content: '> ';
    color: var(--color-link);
    margin-right: 4px;
}

.item-title a:hover {
    color: var(--color-link-hover);
    text-shadow: 0 0 10px rgba(88, 166, 255, 0.3);
}

.item-tags {
    font-size: 12px;
    color: var(--color-text-muted);
    text-transform: lowercase;
    font-weight: 500;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 30px 15px;
    }

    .header {
        flex-direction: column;
        gap: 15px;
        margin-bottom: 30px;
    }

    .social-links {
        width: 100%;
        justify-content: flex-start;
    }

    .content-item {
        grid-template-columns: 1fr;
        gap: 5px;
    }

    .item-date {
        order: 2;
    }

    .item-title {
        order: 1;
    }

    .item-tags {
        order: 3;
    }
}