/* ================================================
   AdamCThompson Personal Website - Dark Modern Theme
   ================================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Source+Sans+3:wght@300;400;500;600;700&display=swap');

/* ================================================
   CSS Custom Properties (Design Tokens)
   ================================================ */
:root {
    /* Background Colors */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-card: #1c2128;
    --bg-card-hover: #262c36;
    
    /* Text Colors */
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-tertiary: #6e7681;
    --text-link: #58a6ff;
    --text-link-hover: #79b8ff;
    
    /* Accent Colors */
    --accent-blue: #58a6ff;
    --accent-teal: #39d353;
    --accent-purple: #a371f7;
    --accent-orange: #d29922;
    --accent-red: #f85149;
    
    /* Border Colors */
    --border-primary: #30363d;
    --border-secondary: #21262d;
    --border-accent: #58a6ff;
    
    /* Gradient Overlays */
    --gradient-hero: linear-gradient(135deg, rgba(88, 166, 255, 0.1) 0%, rgba(163, 113, 247, 0.1) 50%, rgba(57, 211, 83, 0.05) 100%);
    --gradient-card: linear-gradient(180deg, rgba(88, 166, 255, 0.02) 0%, transparent 100%);
    
    /* Typography */
    --font-heading: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(88, 166, 255, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Layout */
    --header-height: 64px;
    --sidebar-width: 280px;
    --content-max-width: 1200px;
}

/* ================================================
   Base Styles
   ================================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================================================
   Typography
   ================================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-top: 0;
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.1rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* ================================================
   Links
   ================================================ */
a {
    color: var(--text-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

/* ================================================
   Buttons
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    color: var(--bg-primary);
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn-primary:hover {
    background-color: var(--text-link-hover);
    border-color: var(--text-link-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    color: var(--text-primary);
    background-color: transparent;
    border-color: var(--border-primary);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-accent);
    color: var(--accent-blue);
}

.btn-ghost {
    color: var(--text-secondary);
    background-color: transparent;
    border-color: transparent;
}

.btn-ghost:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.btn-link {
    color: var(--text-link);
    background: none;
    border: none;
    padding: 0;
}

.btn-link:hover {
    color: var(--text-link-hover);
}

/* ================================================
   Cards
   ================================================ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
}

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

.card-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card-meta {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

/* ================================================
   Tags / Badges
   ================================================ */
.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 500;
    font-family: var(--font-heading);
    color: var(--accent-blue);
    background-color: rgba(88, 166, 255, 0.1);
    border: 1px solid rgba(88, 166, 255, 0.2);
    border-radius: var(--radius-sm);
}

.tag-teal {
    color: var(--accent-teal);
    background-color: rgba(57, 211, 83, 0.1);
    border-color: rgba(57, 211, 83, 0.2);
}

.tag-purple {
    color: var(--accent-purple);
    background-color: rgba(163, 113, 247, 0.1);
    border-color: rgba(163, 113, 247, 0.2);
}

.tag-orange {
    color: var(--accent-orange);
    background-color: rgba(210, 153, 34, 0.1);
    border-color: rgba(210, 153, 34, 0.2);
}

/* ================================================
   Forms
   ================================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

.form-control::placeholder {
    color: var(--text-tertiary);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Validation States */
.valid.modified:not([type=checkbox]) {
    outline: none;
    border-color: var(--accent-teal);
}

.invalid {
    outline: none;
    border-color: var(--accent-red);
}

.validation-message {
    color: var(--accent-red);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* ================================================
   Section Layouts
   ================================================ */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ================================================
   Grid System
   ================================================ */
.container {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ================================================
   Hero Section
   ================================================ */
.hero {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(88, 166, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(163, 113, 247, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 40% 80%, rgba(57, 211, 83, 0.04) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ================================================
   Code Blocks
   ================================================ */
code {
    font-family: var(--font-heading);
    font-size: 0.875em;
    padding: 0.2em 0.4em;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--accent-orange);
}

pre {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    line-height: 1.5;
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

pre code {
    padding: 0;
    background: none;
    color: var(--text-primary);
}

/* ================================================
   Content Styles (Markdown Rendered)
   ================================================ */
.content {
    padding-top: var(--spacing-md);
}

.content h1:focus {
    outline: none;
}

.markdown-content {
    max-width: 800px;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.markdown-content h1:first-child,
.markdown-content h2:first-child,
.markdown-content h3:first-child {
    margin-top: 0;
}

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

.markdown-content ul,
.markdown-content ol {
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.markdown-content li {
    margin-bottom: var(--spacing-sm);
}

.markdown-content blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 4px solid var(--accent-blue);
    background-color: var(--bg-secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-secondary);
}

.markdown-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
}

.markdown-content th,
.markdown-content td {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-primary);
    text-align: left;
}

.markdown-content th {
    background-color: var(--bg-secondary);
    font-weight: 600;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid var(--border-primary);
    margin: var(--spacing-2xl) 0;
}

/* ================================================
   Category Navigation
   ================================================ */
.category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.category-nav-item {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.category-nav-item:hover,
.category-nav-item.active {
    color: var(--accent-blue);
    background-color: rgba(88, 166, 255, 0.1);
    border-color: var(--accent-blue);
    text-decoration: none;
}

/* ================================================
   Search Box
   ================================================ */
.search-box {
    position: relative;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 2.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    opacity: 0.5;
}

/* ================================================
   Breadcrumbs
   ================================================ */
.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-lg);
}

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

.breadcrumbs a:hover {
    color: var(--accent-blue);
}

.breadcrumbs-separator {
    color: var(--text-tertiary);
}

/* ================================================
   Loading States
   ================================================ */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

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

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

/* ================================================
   Error Boundary
   ================================================ */
.blazor-error-boundary {
    background: var(--accent-red);
    padding: var(--spacing-md) var(--spacing-lg);
    color: white;
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

#blazor-error-ui {
    color-scheme: dark only;
    background: var(--bg-secondary);
    border-top: 1px solid var(--accent-red);
    bottom: 0;
    box-shadow: var(--shadow-lg);
    display: none;
    left: 0;
    padding: var(--spacing-md) var(--spacing-lg);
    position: fixed;
    width: 100%;
    z-index: 1000;
    color: var(--text-primary);
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

/* ================================================
   Utilities
   ================================================ */
.text-center {
    text-align: center;
}

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.hidden {
    display: none !important;
}

/* ================================================
   Responsive Adjustments
   ================================================ */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
}

/* ================================================
   Print Styles
   ================================================ */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .sidebar,
    .navbar,
    #blazor-error-ui {
        display: none !important;
    }
}