/* ==========================================
   Font Imports - Must be first!
   ========================================== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ==========================================
   CSS Variables - Dark Terminal Aesthetic
   ========================================== */
:root {
    /* Core Colors - Inspired by Monokai Pro */
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #2e2e2e;
    --bg-code: #1e1e1e;

    /* Accent Colors */
    --accent-primary: #ffd866;
    --accent-secondary: #ff6188;
    --accent-tertiary: #78dce8;
    --accent-muted: #a9dc76;

    /* Text Colors */
    --text-primary: #fcfcfa;
    --text-secondary: #c1c0b8;
    --text-tertiary: #8b8a81;
    --text-code: #ff6188;

    /* Borders & Lines */
    --border-color: #3a3a3a;
    --line-color: rgba(255, 216, 102, 0.1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Typography */
    --font-sans: 'JetBrains Mono', 'Courier New', monospace;
    --font-display: 'Outfit', system-ui, sans-serif;

    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-loose: 1.8;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.6s ease;
}

/* ==========================================
   Reset & Base Styles
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: var(--line-height-loose);
    color: var(--text-secondary);
    background: var(--bg-primary);
    position: relative;
    overflow-x: hidden;
}

/* ==========================================
   Grid Overlay Effect
   ========================================== */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(90deg, var(--line-color) 1px, transparent 1px),
        linear-gradient(0deg, var(--line-color) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

.grid-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        ellipse at top,
        rgba(255, 216, 102, 0.03) 0%,
        transparent 50%
    );
}

/* ==========================================
   Header & Navigation
   ========================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    animation: slideDown 0.6s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
    transition: color var(--transition-fast);
}

.logo:hover {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
    padding-bottom: 2px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* ==========================================
   Container & Layout
   ========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    max-width: 900px;
}

.hero-subtitle {
    font-size: 1.1rem;
    line-height: var(--line-height-normal);
    color: var(--text-tertiary);
    max-width: 700px;
}

/* ==========================================
   Posts Grid
   ========================================== */
.posts-grid {
    display: grid;
    gap: var(--spacing-md);
}

.post-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.post-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
    position: relative;
    animation: fadeInUp 0.6s ease-out backwards;
    overflow: hidden;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--accent-primary);
    transition: height var(--transition-normal);
}

.post-card-link:hover .post-card {
    border-color: var(--accent-primary);
    transform: translateX(4px);
}

.post-card-link:hover .post-card::before {
    height: 100%;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
}

.post-meta time {
    color: var(--text-tertiary);
}

.post-tag {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    background: var(--bg-tertiary);
    color: var(--accent-tertiary);
    border: 1px solid var(--border-color);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.post-title {
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.post-card-link:hover .post-title {
    color: var(--accent-primary);
}

.post-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-normal);
}

.post-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.read-time {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.post-arrow {
    color: var(--accent-primary);
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
}

.post-card-link:hover .post-arrow {
    transform: translateX(4px);
}

/* ==========================================
   About Page
   ========================================== */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.03em;
}

.about-section {
    margin-bottom: var(--spacing-lg);
}

.about-section h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.about-section p {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-loose);
}

.about-section p:last-child {
    margin-bottom: 0;
}

.lead {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: var(--line-height-normal);
    font-weight: 400;
}

.contact-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.contact-link {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.contact-link:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* ==========================================
   Blog Post Full
   ========================================== */
.post-content {
    max-width: 800px;
    margin: 0 auto;
}

.post-header {
    margin-bottom: var(--spacing-xl);
}

.post-header .post-meta {
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.post-title-full {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.post-lead {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: var(--line-height-normal);
    font-weight: 400;
}

/* ==========================================
   Post Body Typography
   ========================================== */
.post-body {
    font-size: 1rem;
    line-height: var(--line-height-loose);
}

.post-body h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.post-body h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.post-body p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.post-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.post-body a {
    color: var(--accent-tertiary);
    text-decoration: none;
    border-bottom: 1px solid var(--accent-tertiary);
    transition: all var(--transition-fast);
}

.post-body a:hover {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

/* ==========================================
   Lists
   ========================================== */
.post-body ul,
.post-body ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
}

.post-body li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.post-body li::marker {
    color: var(--accent-primary);
}

.post-body ol {
    counter-reset: item;
    list-style: none;
}

.post-body ol li {
    counter-increment: item;
    position: relative;
    padding-left: var(--spacing-md);
}

.post-body ol li::before {
    content: counter(item) ".";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 600;
}

/* ==========================================
   Code Blocks
   ========================================== */
.post-body code {
    font-family: var(--font-sans);
    font-size: 0.9em;
    color: var(--text-code);
    background: var(--bg-code);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

.post-body pre {
    background: var(--bg-code);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-primary);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    overflow-x: auto;
    line-height: 1.6;
    position: relative;
}

.post-body pre code {
    display: block;
    padding: 0;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Syntax Highlighting - Monokai-inspired */
.post-body pre code .language-rust,
.post-body pre code .language-text {
    color: var(--text-secondary);
}

/* ==========================================
   Post Footer
   ========================================== */
.post-footer-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border-color);
}

.post-footer-text {
    font-style: italic;
    color: var(--text-tertiary);
}

/* ==========================================
   Footer
   ========================================== */
.site-footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    z-index: 1;
}

.site-footer p {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
    .nav-container {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .container {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .hero {
        padding: var(--spacing-md) 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .post-title a {
        font-size: 1.3rem;
    }

    .post-card {
        padding: var(--spacing-md);
    }

    .contact-links {
        flex-direction: column;
    }

    .post-title-full {
        font-size: 2rem;
    }

    .post-body h2 {
        font-size: 1.6rem;
    }

    .post-body h3 {
        font-size: 1.3rem;
    }

    .post-body pre {
        padding: var(--spacing-sm);
        font-size: 0.85rem;
    }
}

/* ==========================================
   Print Styles
   ========================================== */
@media print {
    .grid-overlay,
    .site-header,
    .site-footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .post-body {
        color: black;
    }
}