/* Kai Hamil Content Archive — Matching www.kaihamil.com styling */

:root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-secondary: #666666;
    --color-accent: #2563eb;
    --color-border: #e5e5e5;
    --color-card-bg: #fafafa;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: var(--font-primary);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.site-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.site-header {
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-lg);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.site-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.site-nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--color-text);
}

.site-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
}

/* Main Content */
.site-main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xxl) var(--spacing-lg);
    width: 100%;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.hero-tagline {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.content-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}

.content-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.content-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 2px solid var(--color-accent);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.content-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.content-card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex: 1;
}

.card-meta {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--color-accent);
    font-weight: 500;
}

/* Footer */
.site-footer {
    background: #f8fafc;
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-top: auto;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-brand h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
}

.footer-brand h2 strong {
    font-weight: 700;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.footer-nav,
.footer-social {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-nav a,
.footer-social a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

.footer-nav a:hover,
.footer-social a:hover {
    color: var(--color-accent);
}

.footer-copyright {
    max-width: 1200px;
    margin: var(--spacing-lg) auto 0;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

/* Content List (for sub-pages) */
.content-list {
    max-width: 800px;
    margin: 0 auto;
}

.post-preview {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.post-preview h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.post-preview h2 a {
    color: var(--color-text);
    text-decoration: none;
}

.post-preview h2 a:hover {
    color: var(--color-accent);
}

.post-date {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.empty-notice {
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .hero-title,
    .hero-subtitle {
        font-size: 2.5rem;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .content-card.featured {
        grid-column: 1;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}