/* Steele.Red - Mechanical Minimalist Design */

:root {
    /* Typography */
    --font-serif: 'Crimson Text', 'Georgia', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Colors - Industrial Dark Theme */
    --color-bg: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-header: #050505;
    --color-text: #e8e8e8;
    --color-text-secondary: #999999;
    --color-text-dim: #666666;
    --color-accent: #ff4444;
    --color-accent-hover: #ff6666;
    --color-link: #4a9eff;
    --color-link-hover: #66b3ff;
    --color-border: #2a2a2a;
    --color-border-light: #3a3a3a;
    --color-code-bg: #1a1a1a;
    --color-code-border: #2a2a2a;
    
    /* Industrial Accents */
    --color-warning: #ffb700;
    --color-danger: #ff6600;
    --color-metal: #4a4a4a;
    --color-steel: #5a6a7a;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
    
    /* Layout */
    --content-width: 48rem;
    --sidebar-width: 12rem;
    --gap: 2rem;
}

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

/* Base Typography */
html {
    font-size: 18px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-serif);
    color: var(--color-text);
    background: var(--color-bg);
    margin: 0;
    padding: 0;
}

/* Header */
.site-header {
    background: var(--color-bg-header);
    border-bottom: 2px solid var(--color-border);
    padding: var(--space-lg) 0;
    margin-bottom: var(--space-xxl);
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    position: relative;
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-metal) 20%, var(--color-metal) 80%, transparent);
}

.header-container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-decoration: none;
    text-transform: uppercase;
    font-family: var(--font-sans);
    display: inline-block;
    position: relative;
}

.site-title .white {
    color: var(--color-text);
    text-shadow: 0 0 10px rgba(255,255,255,0.1);
}

.site-title .red {
    color: var(--color-accent);
    text-shadow: 0 0 10px rgba(255,68,68,0.3);
}

.site-title:hover .red {
    color: var(--color-accent-hover);
    text-shadow: 0 0 15px rgba(255,68,68,0.5);
}

.site-nav {
    display: flex;
    gap: var(--space-xl);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.site-nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 2px;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

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

.site-nav a:hover::after {
    width: 100%;
}

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

/* Main Content */
.main-content {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-lg) var(--space-xxl);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.3;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-text);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2rem;
    margin-top: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    padding-bottom: var(--space-md);
}

h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 3rem;
    height: 3px;
    background: var(--color-accent);
}

h2 {
    font-size: 1.5rem;
    margin-top: var(--space-xxl);
    color: var(--color-text);
}

h3 {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
}

p {
    margin-bottom: var(--space-lg);
}

/* Links */
a {
    color: var(--color-link);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--color-link-hover);
    border-bottom-color: var(--color-link-hover);
    text-shadow: 0 0 8px rgba(74, 158, 255, 0.3);
}

/* Lists */
ul, ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

li {
    margin-bottom: var(--space-sm);
}

/* Code */
code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--color-code-bg);
    padding: 0.1em 0.3em;
    border-radius: 2px;
    border: 1px solid var(--color-code-border);
    color: var(--color-accent);
}

pre {
    background: var(--color-code-bg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    overflow-x: auto;
    border-radius: 4px;
    font-size: 0.85rem;
    line-height: 1.4;
    border: 1px solid var(--color-code-border);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
}

pre code {
    background: none;
    padding: 0;
    font-size: inherit;
}

/* Article List */
.article-list {
    list-style: none;
    padding: 0;
}

.article-item {
    margin-bottom: var(--space-xxl);
    padding-bottom: var(--space-xxl);
    border-bottom: 2px solid var(--color-border);
    position: relative;
}

.article-item::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--color-metal);
}

.article-item:last-child {
    border-bottom: none;
}

.article-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.article-title {
    font-size: 1.3rem;
    margin: 0 0 var(--space-sm) 0;
}

.article-title a {
    color: var(--color-text);
    border-bottom: none;
    transition: all 0.3s ease;
}

.article-title a:hover {
    color: var(--color-accent);
    text-shadow: 0 0 10px rgba(255, 68, 68, 0.3);
}

.article-excerpt {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.article-meta {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.article-tags {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-dim);
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: 2px;
    background: var(--color-bg-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
}

.tag:hover {
    color: var(--color-text);
    border-color: var(--color-accent);
    background: rgba(255, 68, 68, 0.1);
}

/* Footer */
.site-footer {
    border-top: 2px solid var(--color-border);
    padding: var(--space-xl) 0;
    margin-top: var(--space-xxl);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-dim);
    text-align: center;
    background: var(--color-bg-header);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-metal) 20%, var(--color-metal) 80%, transparent);
}

/* Utility Classes */
.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.text-muted {
    color: var(--color-text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    html {
        font-size: 16px;
    }
    
    .header-container {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .site-nav {
        gap: var(--space-lg);
    }
}

/* Remove separate dark mode since we're always dark */

/* Print Styles */
@media print {
    .site-header,
    .site-nav,
    .site-footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    a {
        color: var(--color-text);
        border-bottom: none;
    }
}

/* Industrial Enhancements */
body {
    background: var(--color-bg);
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255,255,255,0.01) 2px,
            rgba(255,255,255,0.01) 4px
        );
}

/* Loading Animation */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--color-text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Selection */
::selection {
    background: var(--color-accent);
    color: var(--color-bg);
}

::-moz-selection {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-metal);
    border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-steel);
}

/* Industrial accents for blockquotes */
blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--space-lg);
    margin: var(--space-lg) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

/* Error states */
.error-message {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: 4px;
    padding: var(--space-xl);
    text-align: center;
    margin: var(--space-xxl) 0;
}

.error-message h2 {
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

/* Make images industrial */
img {
    max-width: 100%;
    height: auto;
    filter: contrast(1.1) brightness(0.9);
}