/* 
* Main Stylesheet for Sasindu's DevOps Portfolio
* Author: Sasindu Jayashma
* Version: 1.0
*/

/* ---------- Table of Contents ----------
1. Variables
2. Base Styles
3. Typography
4. Layout & Container
5. Header & Navigation
6. Buttons & Badges
7. Hero Section
8. Services Section
9. About Section
10. Experience Section
11. Portfolio Section
12. Blog Section
13. Contact Section
14. Footer
15. Utility Classes
16. Responsive Styles
---------------------------------------- */

/* ---------- 1. Variables ---------- */
:root {
    /* Colors */
    --primary-color: #6366f1; /* Indigo */
    --primary-light: #a5b4fc;
    --primary-dark: #4f46e5;
    --secondary-color: #f97316; /* Orange */
    --secondary-light: #fdba74;
    --secondary-dark: #ea580c;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Poppins', var(--font-sans);
    --font-mono: 'Fira Code', 'Roboto Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 2.5rem;
    --space-3xl: 3rem;
    --space-4xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Layout */
    --header-height: 80px;
    --max-width: 1200px;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --primary-color: #818cf8; /* Lighter Indigo for dark mode */
    --primary-light: #a7affb;
    --primary-dark: #6366f1; /* Original primary, good for accents */
    --secondary-color: #fb923c; /* Lighter Orange */
    --secondary-light: #fcd34d;
    --secondary-dark: #f97316; /* Original secondary */
    --dark-color: #f8fafc; /* Light color for text in dark mode */
    --light-color: #1e293b; /* Dark color for background in dark mode */
    --gray-50: #1f2937;
    --gray-100: #334155;
    --gray-200: #475569;
    --gray-300: #64748b;
    --gray-400: #94a3b8;
    --gray-500: #cbd5e1;
    --gray-600: #e2e8f0;
    --gray-700: #f1f5f9;
    --gray-800: #f8fafc;
    --gray-900: #ffffff;

    /* Specific dark theme adjustments */
    --header-bg-color: rgba(30, 41, 59, 0.95); /* Dark with slight transparency */
    --card-bg-color: var(--gray-100); /* Slightly lighter than main bg */
    --text-color: var(--gray-700); /* Primary text in dark mode */
    --heading-color: var(--gray-800); /* Headings in dark mode */
    --border-color: var(--gray-200); /* Borders in dark mode */
    --shadow-color-hsl: 0deg 0% 5%; /* For box shadows, dark version */
    --shadow-sm: 0 1px 2px 0 rgba(var(--shadow-color-hsl), 0.15);
    --shadow-md: 0 4px 6px -1px rgba(var(--shadow-color-hsl), 0.20), 0 2px 4px -1px rgba(var(--shadow-color-hsl), 0.16);
    --shadow-lg: 0 10px 15px -3px rgba(var(--shadow-color-hsl), 0.20), 0 4px 6px -2px rgba(var(--shadow-color-hsl), 0.15);
    --shadow-xl: 0 20px 25px -5px rgba(var(--shadow-color-hsl), 0.20), 0 10px 10px -5px rgba(var(--shadow-color-hsl), 0.14);
}

/* ---------- 2. Base Styles ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-color, var(--gray-700)); /* Fallback to original */
    background-color: var(--light-color, #f8fafc); /* Fallback to original */
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

ul, ol {
    list-style-position: inside;
}

section {
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--heading-color, var(--gray-800)); /* Fallback to original */
    margin-bottom: var(--space-md);
    transition: color var(--transition-normal);
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.025em;
}

h2 {
    font-size: 2.25rem;
    letter-spacing: -0.015em;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

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

.text-center {
    text-align: center;
}

.text-gradient {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ---------- 4. Layout & Container ---------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section-header {
    max-width: 800px;
    margin-bottom: var(--space-3xl);
}

.section-header.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* ---------- 5. Header & Navigation ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--header-bg-color, rgba(255, 255, 255, 0.95));
    backdrop-filter: blur(5px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal);
}

.site-header.scrolled {
    background-color: var(--header-bg-color, rgba(255, 255, 255, 0.98)); /* Ensure scrolled header also uses theme variable */
    box-shadow: var(--shadow-md); /* Use themed shadow */
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--space-md); /* Add some gap if not present */
}

.logo a {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color, var(--gray-800)); /* Use heading color */
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
}

.main-nav a {
    color: var(--text-color, var(--gray-600));
    font-weight: 500;
    position: relative;
    padding: var(--space-sm) 0;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-color, var(--gray-700)); /* Use text color */
    transition: all var(--transition-fast);
}

/* ---------- 6. Buttons & Badges ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
}

.primary-btn:hover {
    background-color: var(--primary-dark);
    color: white;
}

.secondary-btn {
    background-color: transparent; /* Make background transparent */
    color: var(--primary-color);
    border: 1px solid var(--border-color, var(--gray-200)); /* Use themed border */
    box-shadow: var(--shadow-sm);
}

.secondary-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary-dark);
    box-shadow: var(--shadow-md);
    background-color: rgba(var(--primary-color), 0.1); /* Optional: slight bg on hover */
}

.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

/* ---------- 7. Hero Section ---------- */
.hero-section {
    padding-top: calc(var(--header-height) + var(--space-4xl));
    padding-bottom: var(--space-4xl);
    background-color: var(--card-bg-color, var(--gray-50));
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3xl);
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    margin-bottom: var(--space-lg);
}

.hero-text p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    max-width: 90%;
}

.hero-image {
    flex: 1;
    position: relative;
}

.background-shape {
    position: absolute;
    top: -10%;
    right: -10%;
    width: 120%;
    height: 120%;
    background-color: var(--primary-light);
    border-radius: var(--radius-lg);
    z-index: -1;
}

/* ---------- 8. Services Section ---------- */
.services-section {
    background-color: var(--light-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.service-card {
    padding: var(--space-xl);
    background-color: var(--card-bg-color, var(--gray-50)); /* Themed card background */
    border-radius: var(--radius-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
    box-shadow: var(--shadow-sm); /* Add default shadow */
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg); /* Use themed shadow */
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.service-icon img {
    width: 30px;
    height: 30px;
}

.service-card h3 {
    margin-bottom: var(--space-sm);
}

.cta-container {
    display: flex;
    justify-content: center;
    margin-top: var(--space-xl);
}

/* ---------- 9. About Section ---------- */
.about-section {
    background-color: var(--card-bg-color, var(--gray-50));
}

.about-content {
    display: flex;
    align-items: center;
    gap: var(--space-3xl);
}

.about-image {
    flex: 1;
    position: relative;
}

.about-text {
    flex: 1;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.experience-badge span:first-child {
    font-size: 1.5rem;
}

.about-details {
    margin-top: var(--space-xl);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.skills-container {
    margin-top: var(--space-xl);
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.skill-tag, .tech-tag {
    padding: var(--space-xs) var(--space-sm);
    background-color: var(--gray-200); /* Use a theme-aware gray */
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--heading-color); /* Text color for tags */
}

/* ---------- 10. Experience Section ---------- */
.experience-section {
    background-color: var(--light-color);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 120px;
    height: 100%;
    width: 2px;
    background-color: var(--border-color, var(--gray-200));
}

.timeline-item {
    display: flex;
    margin-bottom: var(--space-3xl);
    position: relative;
}

.timeline-meta {
    width: 120px;
    flex-shrink: 0;
    text-align: right;
    padding-right: var(--space-xl);
}

.timeline-meta .year {
    display: block;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--space-xs);
}

.timeline-meta .company {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.timeline-content {
    position: relative;
    padding-left: var(--space-xl);
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 8px;
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background-color: var(--primary-color); /* This should adapt */
}

.experience-list {
    list-style: none;
    margin-top: var(--space-md);
}

.experience-list li {
    margin-bottom: var(--space-md);
    position: relative;
    padding-left: var(--space-xl);
}

.experience-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background-color: var(--primary-color); /* This should adapt */
}

/* ---------- 11. Portfolio Section ---------- */
.portfolio-section {
    background-color: var(--card-bg-color, var(--gray-50));
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.portfolio-item {
    background-color: var(--card-bg-color, white); /* Themed card background */
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(99, 102, 241, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.view-project {
    padding: var(--space-sm) var(--space-md);
    background-color: white;
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.portfolio-item h3 {
    padding: var(--space-md) var(--space-md) var(--space-xs);
    font-size: 1.25rem;
}

.portfolio-item p {
    padding: 0 var(--space-md);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md) var(--space-md);
}

/* .tech-tag is handled by .skill-tag rule */

/* ---------- 12. Blog Section ---------- */
.blog-section {
    background-color: var(--light-color);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.blog-card {
    background-color: var(--card-bg-color, var(--gray-50));
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.blog-image {
    position: relative;
    height: 200px;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-date {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-md);
    padding: var(--space-xs) var(--space-sm);
    text-align: center;
    line-height: 1.2;
}

.blog-date .day {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
}

.blog-date .month {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
}

.blog-content {
    padding: var(--space-md);
}

.blog-tags {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.blog-tag {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: var(--radius-full);
}

.blog-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.blog-card p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: var(--space-md);
}

.read-more {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
}

.read-more::after {
    content: '→';
    margin-left: var(--space-xs);
    transition: transform var(--transition-fast);
}

.read-more:hover::after {
    transform: translateX(3px);
}

/* ---------- 13. Contact Section ---------- */
.contact-section {
    background-color: var(--card-bg-color, var(--gray-50));
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-3xl);
    background-color: var(--card-bg-color, white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: background-color var(--transition-normal);
}

.contact-info {
    padding: var(--space-2xl);
    background-color: var(--primary-color);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--space-xl);
}

.info-icon {
    margin-right: var(--space-md);
}

.info-icon img {
    width: 24px;
    height: 24px;
    filter: brightness(0) invert(1);
}

.info-content h3 {
    color: white;
    margin-bottom: var(--space-xs);
    font-size: 1rem;
}

.social-links {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.social-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.social-link img {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.contact-form-container {
    padding: var(--space-2xl);
}

.contact-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    margin-bottom: var(--space-xs);
    font-weight: 500;
    color: var(--text-color, var(--gray-700));
}

.form-group input,
.form-group textarea {
    padding: var(--space-md);
    border: 1px solid var(--border-color, var(--gray-200)); /* Themed border */
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    font-family: var(--font-sans);
    background-color: var(--light-color); /* Input background */
    color: var(--text-color); /* Input text color */
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form button {
    grid-column: span 2;
    margin-top: var(--space-md);
}

/* ---------- 14. Footer ---------- */
.site-footer {
    background-color: var(--gray-900); /* Darkest gray for footer bg */
    color: var(--gray-400); /* Lighter text for footer */
    padding: var(--space-3xl) 0 var(--space-xl);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2xl);
}

.footer-logo a {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-50); /* Ensure logo text is light */
}

.footer-logo p {
    font-size: 0.875rem;
    margin-top: var(--space-xs);
}

.footer-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
}

.footer-nav a {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--gray-50);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--gray-700); /* Use a dark theme gray for border */
    font-size: 0.875rem;
}

/* ---------- 15. Utility Classes ---------- */
.decoration-element {
    position: absolute;
    border-radius: var(--radius-full);
    z-index: -1;
    background-color: var(--primary-light);
    opacity: 0.3;
}

.d1 {
    top: 10%;
    left: 5%;
    width: 100px;
    height: 100px;
}

.d2 {
    bottom: 20%;
    right: 10%;
    width: 150px;
    height: 150px;
}

.d3 {
    top: 30%;
    right: 5%;
    width: 80px;
    height: 80px;
}

.d4 {
    bottom: 10%;
    left: 15%;
    width: 120px;
    height: 120px;
}

.d5 {
    top: 20%;
    right: 20%;
    width: 60px;
    height: 60px;
}

.d6 {
    bottom: 30%;
    right: 15%;
    width: 90px;
    height: 90px;
}

.d7 {
    top: 15%;
    left: 10%;
    width: 70px;
    height: 70px;
}

.d8 {
    bottom: 20%;
    right: 5%;
    width: 120px;
    height: 120px;
}

.d9 {
    top: 20%;
    right: 15%;
    width: 80px;
    height: 80px;
}

.d10 {
    bottom: 15%;
    left: 8%;
    width: 100px;
    height: 100px;
}

.d11 {
    top: 25%;
    right: 10%;
    width: 60px;
    height: 60px;
}

/* ---------- 16. Responsive Styles ---------- */
@media (max-width: 992px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero-content {
        flex-direction: column;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-xl);
        text-align: center;
    }
    
    .timeline::before {
        left: 60px;
    }
    
    .timeline-meta {
        width: 60px;
    }
}

@media (max-width: 768px) {
    section {
        padding: var(--space-3xl) 0;
    }
    
    .main-nav {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .services-grid,
    .portfolio-grid,
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .footer-nav ul {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .contact-form button {
        grid-column: span 1;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    .about-details {
        grid-template-columns: 1fr;
    }
    
    .experience-badge {
        width: 80px;
        height: 80px;
        right: -10px;
        bottom: -10px;
    }
    
    .timeline-item {
        flex-direction: column;
    }
    
    .timeline::before {
        display: none;
    }
    
    .timeline-meta {
        width: 100%;
        text-align: left;
        padding-right: 0;
        margin-bottom: var(--space-md);
    }
    
    .timeline-content {
        padding-left: 0;
    }
    
    .timeline-content::before {
        display: none;
    }
}

/* ---------- Blog Post Specific Styles ---------- */
.blog-post-hero {
    padding-top: calc(var(--header-height) + var(--space-3xl));
    padding-bottom: var(--space-2xl);
    background-color: var(--gray-50);
    text-align: center;
}

.blog-post-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.post-categories {
    display: flex;
    gap: var(--space-xs);
}

.post-category {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: var(--radius-full);
}

.post-date {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.blog-post-title {
    max-width: 800px;
    margin: 0 auto var(--space-xl);
}

.blog-post-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.blog-post-author img {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.author-info {
    text-align: left;
}

.author-name {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
}

.author-role {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.blog-post-content {
    padding: var(--space-3xl) 0;
}

.blog-post-image {
    margin-bottom: var(--space-2xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.post-content {
    max-width: 800px;
    margin: 0 auto;
}

.intro-text {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
}

.code-block {
    background-color: var(--gray-800);
    color: var(--gray-100);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: auto;
    margin: var(--space-md) 0 var(--space-xl);
    white-space: pre;
}

.blog-post-share {
    max-width: 800px;
    margin: var(--space-2xl) auto;
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.share-links {
    display: flex;
    gap: var(--space-sm);
}

.share-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
}

.share-link.twitter {
    background-color: #1da1f2;
    color: white;
}

.share-link.linkedin {
    background-color: #0077b5;
    color: white;
}

.share-link.facebook {
    background-color: #4267b2;
    color: white;
}

.blog-post-navigation {
    max-width: 800px;
    margin: var(--space-2xl) auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
}

.prev-post,
.next-post {
    display: flex;
    flex-direction: column;
}

.next-post {
    text-align: right;
}

.nav-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-bottom: var(--space-xs);
}

.post-title {
    font-weight: 600;
    color: var(--gray-700);
}

.related-posts {
    margin-top: var(--space-3xl);
}

.related-posts h3 {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.related-post-card {
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.related-post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.related-post-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.related-post-card h4 {
    padding: var(--space-md);
    font-size: 1rem;
    margin-bottom: 0;
}

.related-post-card a {
    display: block;
    padding: 0 var(--space-md) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .related-posts-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-post-navigation {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .next-post {
        text-align: left;
    }
}

/* Theme Switcher Button */
.theme-switcher {
    background-color: var(--gray-200);
    border: 1px solid var(--border-color, var(--gray-300));
    color: var(--text-color, var(--gray-700));
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.theme-switcher:hover {
    background-color: var(--gray-300);
    border-color: var(--gray-400);
}

.theme-switcher svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}