:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --border-width: 3px;
    --spacing: 20px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    border: var(--border-width) solid var(--text-color);
    padding: 40px;
    box-shadow: 10px 10px 0px 0px var(--text-color);
}

header {
    text-align: center;
    border-bottom: var(--border-width) solid var(--text-color);
    padding-bottom: var(--spacing);
    margin-bottom: var(--spacing);
}

h1 {
    text-transform: uppercase;
    font-size: 3rem;
    margin: 0;
    letter-spacing: -2px;
}

h2 {
    border-bottom: var(--border-width) solid var(--text-color);
    padding-bottom: 10px;
    margin-top: 40px;
    text-transform: uppercase;
}

.hero {
    text-align: center;
    margin-bottom: 40px;
}

.video-placeholder {
    width: 100%;
    height: 400px;
    background-color: #eee;
    border: var(--border-width) solid var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing);
    font-weight: bold;
    background-image: linear-gradient(45deg, #000 25%, transparent 25%, transparent 75%, #000 75%, #000), 
                      linear-gradient(45deg, #000 25%, transparent 25%, transparent 75%, #000 75%, #000);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    opacity: 0.1;
}
.video-content {
    background: white;
    border: var(--border-width) solid var(--text-color);
    padding: 20px;
    z-index: 1;
}

.tagline {
    font-size: 1.2rem;
    font-weight: bold;
    margin: 20px 0;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing);
}

.feature-card {
    border: var(--border-width) solid var(--text-color);
    padding: 15px;
    text-align: center;
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 0 var(--text-color);
}

.install-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing);
}

.install-option {
    border: var(--border-width) solid var(--text-color);
    padding: 15px;
}

.code-block {
    background: #f0f0f0;
    padding: 10px;
    border: 1px solid #000;
    display: block;
    margin-top: 10px;
    font-family: monospace;
    overflow-x: auto;
}

.btn {
    display: inline-flex;
    background: #000;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    font-weight: bold;
    border: var(--border-width) solid #000;
    transition: all 0.2s;
    align-items: center;
    justify-content: center;
}

.btn:hover {
    background: #fff;
    color: #000;
}

.changelog-item {
    border-left: var(--border-width) solid var(--text-color);
    padding-left: 20px;
    margin-bottom: 20px;
}

.meta-date {
    font-weight: bold;
    text-decoration: underline;
}

.links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
}

footer {
    margin-top: 60px;
    text-align: center;
    border-top: var(--border-width) solid var(--text-color);
    padding-top: 20px;
    font-size: 0.9rem;
}

a {
    color: #000;
}

.blink {
    animation: blinker 1s linear infinite;
}

@keyframes blinker {
    50% {
        opacity: 0;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 15px;
        box-shadow: 5px 5px 0px 0px var(--text-color);
    }
    h1 {
        font-size: 2rem;
    }
}