/* Terminal Minimalism Design System - January 2026 Build */
:root {
    /* Color Palette - Deep Blues with Vibrant Accents */
    --color-primary: #0a1628;
    --color-secondary: #1a2942;
    --color-accent: #00d9ff;
    --color-accent-alt: #ff006e;
    --color-text: #e8edf4;
    --color-text-muted: #8b9bb8;
    --color-background: #0d1b2a;
    --color-background-alt: #15263f;
    --color-card-bg: rgba(26, 41, 66, 0.6);
    --color-border: #2a4365;

    /* Typography - Modern Sans with Subtle Serif Accents */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;
    --font-accent: 'Crimson Pro', Georgia, serif;

    /* Spacing - Generous and Organic */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Layout */
    --max-width: 1400px;
    --border-radius: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

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

body {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text);
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-primary) 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

a:hover {
    color: var(--color-accent-alt);
}

/* Navigation */
.main-nav {
    background: rgba(10, 22, 40, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

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

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: -0.03em;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) 0;
}

.nav-link.active {
    color: var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

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

.hero-title {
    font-size: 4.5rem;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-family: var(--font-accent);
    font-size: 1.5rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Content Sections */
.content-section {
    padding: var(--spacing-lg) 0;
}

.content-intro {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl) auto;
    font-size: 1.125rem;
    line-height: 1.9;
}

.content-intro p {
    margin-bottom: var(--spacing-md);
}

.content-intro strong {
    color: var(--color-accent);
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.content-card {
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.content-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.content-card:hover::before {
    transform: scaleX(1);
}

.content-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.content-card h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.content-card p {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.card-link {
    display: inline-block;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--color-accent);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.card-link:hover {
    background: var(--color-accent);
    color: var(--color-background);
}

/* Newsletter Section */
.newsletter-section {
    max-width: 700px;
    margin: var(--spacing-xl) auto;
    padding: var(--spacing-lg);
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    text-align: center;
}

.newsletter-section h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: var(--spacing-md) auto;
}

.newsletter-form input[type="email"] {
    flex: 1;
    font-family: var(--font-primary);
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    background-color: var(--color-background-alt);
    color: var(--color-text);
    transition: all 0.3s ease;
}

.newsletter-form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.newsletter-form input[type="submit"] {
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    background-color: var(--color-accent);
    color: var(--color-background);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}

.newsletter-form input[type="submit"]:hover {
    background-color: transparent;
    color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.newsletter-note {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
}

/* Footer */
.main-footer {
    background: var(--color-primary);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

.footer-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.kofi-button {
    display: inline-block;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-alt) 100%);
    color: var(--color-background);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}

.kofi-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.3);
}

.footer-date {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* 404 Page */
.error-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.error-content h1 {
    font-size: 8rem;
    margin-bottom: var(--spacing-sm);
}

.error-content h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.error-content p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.error-content a {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}

.error-content a:hover {
    background: var(--color-accent);
    color: var(--color-background);
}

/* Responsive Design */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }

    .hero-title {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

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

    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form input[type="submit"] {
        width: 100%;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

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

/* Build Log Specific Styles */
.build-log-timeline {
    margin: var(--spacing-xl) 0;
}

.build-log-entry {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.build-log-entry:last-child {
    border-bottom: none;
}

.log-date-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    height: fit-content;
    position: sticky;
    top: calc(var(--spacing-xl) + 60px);
}

.log-date-badge .day {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-accent);
    line-height: 1;
}

.log-date-badge .month {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    letter-spacing: 0.1em;
}

.log-date-badge .year {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.log-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

.log-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.log-content ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.log-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.log-time {
    font-size: 0.95rem;
    font-style: italic;
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
}

/* Build Log Images */
.log-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.log-images figure {
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all 0.3s ease;
}

.log-images figure:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.log-images img {
    width: 100%;
    height: auto;
    display: block;
}

.log-images figcaption {
    padding: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Build Statistics */
.build-stats {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.build-stats h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(0, 217, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--color-accent);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Next Steps Section */
.next-steps {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-accent);
}

.next-steps h2 {
    margin-bottom: var(--spacing-md);
}

.next-steps ul {
    list-style: none;
    padding: 0;
}

.next-steps li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    line-height: 1.7;
}

.next-steps li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

/* Responsive Build Log */
@media (max-width: 768px) {
    .build-log-entry {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .log-date-badge {
        position: static;
        flex-direction: row;
        justify-content: space-around;
    }

    .log-date-badge .day {
        font-size: 2rem;
    }

    .log-images {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tech Page Specific Styles */
.tech-content {
    max-width: 900px;
    margin: 0 auto;
}

.tech-image-feature {
    margin: var(--spacing-xl) 0;
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.tech-image-feature img {
    width: 100%;
    height: auto;
    display: block;
}

.tech-image-feature .image-caption {
    padding: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin: 0;
    text-align: center;
}

.content-types {
    margin: var(--spacing-lg) 0;
    padding-left: var(--spacing-lg);
}

.content-types li {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.no-ai-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: rgba(255, 0, 110, 0.05);
    border-left: 4px solid var(--color-accent-alt);
    border-radius: var(--border-radius);
}

.no-ai-section p {
    margin: 0;
    font-style: italic;
}

.deployment-steps {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.deployment-steps li {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.tech-content code {
    background: rgba(0, 217, 255, 0.1);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--color-accent);
}

.tech-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.tech-content ol {
    margin: var(--spacing-md) 0;
}

/* Responsive Tech Page */
@media (max-width: 768px) {
    .tech-content {
        max-width: 100%;
    }

    .content-types,
    .deployment-steps {
        padding-left: var(--spacing-md);
    }
}