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

:root {
    --base-size: 1rem;
    --scale-ratio: 1.618;

    /* Modular scale steps (golden ratio) */
    --step-0: 1rem;        /* 16px - body */
    --step-1: 1.125rem;    /* 18px - small headings */
    --step-2: 1.25rem;     /* 20px - card titles */
    --step-3: 1.5rem;      /* 24px - h4 */
    --step-4: 2rem;        /* 32px - h3 */
    --step-5: 3rem;        /* 48px - h2 */
    --step-6: 5rem;        /* 80px - h1 max */
}

body {
    font-family: "chaparral-pro-1", "chaparral-pro-2", Georgia, serif;
    font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    line-height: 1.5;
    letter-spacing: 0;
    color: #000;
    background: #fff;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
}

h1 {
    font-family: "cronos-pro-1", "cronos-pro-2", Helvetica, Arial, sans-serif;
    font-size: clamp(var(--step-4), 3rem + 3vw, var(--step-6));
    font-weight: 900;
    letter-spacing: 0.1em;
    line-height: 1;
    text-transform: uppercase;
    color: #7f0000;
    background: #fff;
    margin-top: 0;
    margin-bottom: 0.5rem;
    padding: 10px 0;
    text-rendering: geometricPrecision;
    max-width: 25em;
}

h2 {
    font-family: "cronos-pro-1", "cronos-pro-2", Helvetica, Arial, sans-serif;
    font-size: clamp(var(--step-3), 1.5rem + 1.5vw, var(--step-5));
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.2;
    text-transform: none;
    color: #7f0000;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    max-width: 25em;
}

h3 {
    font-family: "cronos-pro-1", "cronos-pro-2", Helvetica, Arial, sans-serif;
    font-size: clamp(var(--step-2), 1.25rem + 0.75vw, var(--step-4));
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.2;
    text-transform: none;
    color: #000;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    max-width: 25em;
}

h4 {
    font-family: "cronos-pro-1", "cronos-pro-2", Helvetica, Arial, sans-serif;
    font-size: clamp(1.25rem, 1.125rem + 0.625vw, 1.75rem);
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.3;
    text-transform: none;
    font-variant-caps: normal;
    color: #7f0000;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    max-width: 25em;
}

a {
    color: #000;
    text-decoration: none;
}

a:hover {
    color: #7f0000;
}

.hero {
    text-align: center;
    padding: 0.875rem 0 0 0;
    margin-top: 0.875rem;
    margin-bottom: 0;
    font-size: 1.2rem;
    color: #000;
    border-top: 2px solid #7f0000;
}

.cloudflare-link {
    color: #ff6633;
    text-decoration: none;
    font-weight: 600;
}

.cloudflare-link:hover {
    color: #ff6633;
    text-decoration: underline;
}

.content {
    margin: 0 0 1.5rem 0;
}

.content p {
    margin-bottom: 0.75rem;
    color: #000;
}

/* River of boxes layout */
.widget-river {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.widget-box {
    background: #fff;
    padding: 1.5rem;
    min-height: 300px;
    display: flex;
    flex-direction: column;
}

.widget-box h3 {
    color: #000;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.widget-content {
    color: #000;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Card Grid Layouts */
.repo-grid,
.presentation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
}

.card {
    background: #fff;
    border: none;
    padding: 1rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 160px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.card-title {
    font-size: var(--step-2);
    font-weight: 700;
    color: #000;
    margin-bottom: 10px;
    text-decoration: none;
    display: block;
    transition: color 0.2s ease;
}

.card-title:hover {
    color: #7f0000;
}

.card-description {
    flex-grow: 1;
    color: #666;
    font-size: 0.9em;
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 0.85em;
    color: #666;
    margin-top: auto;
}

/* Language indicators */
.language-indicator {
    display: flex;
    align-items: center;
    gap: 5px;
}

.language-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.language-dot.python { background-color: #3572A5; }
.language-dot.go { background-color: #00ADD8; }
.language-dot.html { background-color: #e34c26; }
.language-dot.javascript { background-color: #f1e05a; }

/* Stars indicator */
.stars-indicator {
    display: flex;
    align-items: center;
    gap: 5px;
}

.stars-indicator svg {
    color: #7f0000;
}

/* Presentation card specific styles */
.presentation-card {
    position: relative;
}

.presentation-thumbnail {
    width: 100%;
    height: 140px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.presentation-thumbnail iframe {
    width: 100%;
    height: 200px;
    transform: scale(0.7);
    pointer-events: none;
}

.view-all-container {
    margin-top: 1.5rem;
    text-align: center;
}

.view-all-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: 2px solid #7f0000;
    color: #000;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.view-all-link:hover {
    background: #7f0000;
    color: #fff;
}

footer {
    margin-top: 3rem;
    padding-top: 1rem;
    text-align: center;
    color: #000;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .widget-river {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .repo-grid,
    .presentation-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .container {
        padding: 10px;
    }
}