/* ============================================
   SymSpell C99 Blog Post - Professional Styling
   Author: Suman Pokhrel
   ============================================ */

/* ============================================
   CSS Variables (Theme Colors)
   ============================================ */
/* ============================================
   CSS Variables (Theme Colors) - Customized
   ============================================ */
:root {
    /* Your Original Color Palette */
    --blue: #79A9F5;
    --indigo: #C45F90;
    --purple: #A16AE8;
    --pink: #FC8BC0;
    --red: #F85C70;
    --orange: #FF8882;
    --yellow: #FAD02C;
    --green: #A3C14A;
    --teal: #20c997;
    --cyan: #47D8E0;
    --white: #fff;
    --gray: #6c757d;
    --gray-dark: #343a40;
    
    /* Primary Colors (using your palette) */
    --primary-color: #ff7a57;        /* Your primary orange */
    --primary-dark: #e5653f;         /* Darker shade */
    --primary-light: #FF8882;        /* Your orange */
    --secondary-color: #A3C14A;      /* Your success/green */
    --accent-color: #47D8E0;         /* Your cyan/info */
    
    /* Text Colors */
    --text-primary: #343a40;         /* Your gray-dark */
    --text-secondary: #495057;       /* Slightly lighter */
    --text-light: #6c757d;           /* Your gray */
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;         /* Your light */
    --bg-tertiary: #e9ecef;
    --bg-code: #343a40;              /* Your dark */
    --bg-highlight: #FFF8DC;         /* Light yellow tint */
    
    /* Border Colors */
    --border-color: #dee2e6;
    --border-dark: #adb5bd;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    --font-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Layout */
    --max-width: 800px;
    --max-width-wide: 1200px;
    --line-height: 1.5;
}

/* ============================================
   Dark Mode Support (Optional)
   ============================================ */
/* @media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --text-light: #9ca3af;
        --bg-primary: #111827;
        --bg-secondary: #1f2937;
        --bg-tertiary: #374151;
        --bg-code: #0f172a;
        --border-color: #374151;
        --border-dark: #4b5563;
    }
} */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: var(--line-height);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Article Layout
   ============================================ */
article {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

@media (max-width: 768px) {
    article {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/* ============================================
   Typography
   ============================================ */

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

h1 {
    font-size: 2.5rem;
    margin-top: 0;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2rem;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
    margin-top: var(--spacing-2xl);
}

h3 {
    font-size: 1.5rem;
color: #ff7a57;
}

h4 {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

h5 {
    font-size: 1.1rem;
}

h6 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.35rem; }
    h4 { font-size: 1.15rem; }
}

/* Paragraphs */
p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--primary-dark);
    border-bottom-color: var(--primary-color);
}

/* Strong & Emphasis */
strong, b {
    font-weight: 600;
    color: var(--text-primary);
}

em, i {
    font-style: italic;
}

/* Lists */
ul, ol {
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

ul {
    list-style-type: disc;
}

li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

li::marker {
    color: #ff7a57;
}

/* Nested Lists */
ul ul, ol ol, ul ol, ol ul {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   Header Section
   ============================================ */
header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 3px solid var(--primary-color);
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.meta span {
    display: flex;
    align-items: center;
}

.meta span::before {
    content: '•';
    margin-right: var(--spacing-sm);
    color: #ff7a57;
}

.meta span:first-child::before {
    content: none;
}

/* Tags */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.tag:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   Table of Contents
   ============================================ */
.toc {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
}

.toc h2 {
    font-size: 1.25rem;
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid #ff7a57;
}

.toc ol {
    margin-left: var(--spacing-lg);
    margin-bottom: 0;
}

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

.toc a {
    color: var(--text-secondary);
    border-bottom: none;
    transition: all 0.2s ease;
}

.toc a:hover {
    color: var(--primary-color);
    padding-left: var(--spacing-xs);
}

/* ============================================
   Content Sections
   ============================================ */
section {
    margin-bottom: var(--spacing-2xl);
}

section:last-of-type {
    margin-bottom: 0;
}

/* ============================================
   Special Boxes & Callouts
   ============================================ */

/* Highlight Box */
.highlight-box {
    background: linear-gradient(135deg, #ff7a57 0%, #FF8882 100%);
    color: white;
    padding: var(--spacing-xl);
    border-radius: 8px;
    margin: var(--spacing-xl) 0;
    box-shadow: var(--shadow-lg);
}

.highlight-box p {
    color: white;
    margin-bottom: var(--spacing-md);
}

.highlight-box strong {
    color: white;
    font-size: 1.1rem;
}

.highlight-box ul {
    margin-left: var(--spacing-lg);
    margin-bottom: 0;
}

.highlight-box li {
    color: white;
}

/* Blockquotes */
blockquote {
    position: relative;
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-lg) var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--text-secondary);
}

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

blockquote p:last-child {
    margin-bottom: 0;
}

blockquote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 10px;
    font-size: 4rem;
    color: var(--primary-light);
    opacity: 0.3;
    font-family: Georgia, serif;
}

/* Info Box / Note */
.info-box, .note-box, .warning-box {
    padding: var(--spacing-lg);
    border-radius: 8px;
    margin: var(--spacing-xl) 0;
    border-left: 4px solid;
}

.info-box {
    background-color: #eff6ff;
    border-color: #3b82f6;
}

.note-box {
    background-color: #f0fdf4;
    border-color: #10b981;
}

.warning-box {
    background-color: #fef3c7;
    border-color: #f59e0b;
}

/* ============================================
   Code Blocks & Syntax Highlighting
   ============================================ */

/* Inline Code */
code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background-color: var(--bg-tertiary);
    color: var(--primary-dark);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-weight: 500;
}

/* Code Blocks */
pre {
    background-color: #f3e5da;
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    overflow-x: auto;
    box-shadow: var(--shadow-md);
}

pre code {
    background: none;
    color: #e2e8f0;
    padding: 0;
    font-size: 0.9rem;
    line-height: 1.6;
    display: block;
}

/* Code Example Container */
.code-example {
    margin: var(--spacing-xl) 0;
}

.code-example p {
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

/* Scrollbar Styling for Code Blocks */
pre::-webkit-scrollbar {
    height: 8px;
}

pre::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

pre::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* ============================================
   Tables
   ============================================ */
table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    border-radius: 8px;
    overflow: hidden;
}

thead {
    background-color: var(--bg-secondary);
}

th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-dark);
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

tbody tr:hover {
    background-color: var(--bg-secondary);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Responsive Tables */
@media (max-width: 768px) {
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: var(--spacing-sm);
    }
}

/* ============================================
   Images & Figures
   ============================================ */
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: var(--spacing-xl) auto;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

figure {
    margin: var(--spacing-2xl) 0;
}

figcaption {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: var(--spacing-sm);
    font-style: italic;
}

/* ============================================
   Horizontal Rule
   ============================================ */
hr {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: var(--spacing-2xl) 0;
}

/* ============================================
   Call-to-Action (CTA) Box
   ============================================ */
.cta-box {
    background: linear-gradient(135deg, #ff7a57 0%, #FF8882 100%);
    color: white;
    padding: var(--spacing-2xl);
    border-radius: 12px;
    text-align: center;
    margin: var(--spacing-2xl) 0;
    box-shadow: var(--shadow-lg);
}

.cta-box h3 {
    color: white;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: 1.75rem;
}

.cta-box p {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-2xl);
    background-color: white;
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: var(--shadow-md);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background-color: #f9fafb;
}

/* ============================================
   Signature
   ============================================ */
.signature {
    text-align: center;
    padding: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    border-top: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-style: italic;
}

/* ============================================
   Related Posts
   ============================================ */
.related-posts {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: 8px;
    margin-top: var(--spacing-2xl);
}

.related-posts h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.related-posts ul {
    list-style: none;
    margin-left: 0;
    margin-bottom: 0;
}

.related-posts li {
    margin-bottom: var(--spacing-md);
}

.related-posts a {
    color: var(--primary-color);
    font-weight: 500;
    display: block;
    padding: var(--spacing-sm);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.related-posts a:hover {
    background-color: var(--bg-tertiary);
    padding-left: var(--spacing-md);
}

/* ============================================
   Comments Section
   ============================================ */
.comments {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--border-color);
}

.comments h3 {
    margin-top: 0;
}

/* ============================================
   Utility Classes
   ============================================ */

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Spacing */
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --max-width: 700px;
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 15px;
    }
    
    article {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .toc {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    
    .highlight-box,
    .cta-box {
        padding: var(--spacing-lg);
    }
    
    pre {
        padding: var(--spacing-md);
        font-size: 0.85rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: black;
        background: white;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
    
    pre, code {
        border: 1px solid #ddd;
        page-break-inside: avoid;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
    }
    
    img {
        max-width: 100%;
        page-break-inside: avoid;
    }
    
    .toc, .related-posts, .comments, .cta-box {
        display: none;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animate sections on load (optional) */
section {
    animation: fadeIn 0.6s ease-out;
}

/* Smooth scrolling for anchor links */
html {
    scroll-padding-top: 2rem;
}

/* ============================================
   Accessibility
   ============================================ */

/* Focus styles */
a:focus, button:focus, input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip to content link (for screen readers) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   Performance Optimizations
   ============================================ */

/* GPU acceleration for animations */
.tag, .cta-button, .related-posts a {
    will-change: transform;
}

/* ============================================
   END OF STYLESHEET
   ============================================ */