:root {
    --color-primary: #6a0dad; /* A deep purple for primary accents */
    --color-secondary: #007bff; /* A vibrant blue for secondary accents */
    --color-text-light: #333333;
    --color-text-muted-light: #6c6c6c; /* muted text for meta and small info */
    --color-text-dark: #e0e0e0;
    --color-background-light: #ffffff;
    --color-background-dark: #1a1a2e; /* Darker background for dark mode */
    --color-surface-light: #f8f9fa;
    --color-surface-dark: #2e2e4a; /* Darker surface for dark mode */
    --color-border-light: #e0e0e0;
    --color-border-dark: #4a4a6a;
    --color-shadow: rgba(0, 0, 0, 0.1);
    --color-hover-light: #f0f0f0;
    --color-hover-dark: #3a3a5a;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Theme Specific Styles */
body.light-mode {
    background-color: var(--color-background-light);
    color: var(--color-text-light);
}

body.dark-mode {
    background-color: var(--color-background-dark);
    color: var(--color-text-dark);
}

body.assisted-reading-mode {
    background-color: #f5eeda;
    color: #3a3a3a;
    font-family: 'Georgia', serif;
    font-size: 1.2rem;
}

/* Container for content */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Section Styling */
.content-section {
    padding: 80px 0;
    border-bottom: 1px solid var(--color-border-light);
}

body.dark-mode .content-section {
    border-bottom: 1px solid var(--color-border-dark);
}

.content-section:last-of-type {
    border-bottom: none;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--color-primary);
    border-radius: 2px;
}

/* Navigation */
.main-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
    box-shadow: 0 2px 10px var(--color-shadow);
}

body.light-mode .main-nav {
    background: var(--color-background-light);
    border-bottom: 1px solid var(--color-border-light);
}

body.dark-mode .main-nav {
    background: var(--color-background-dark);
    border-bottom: 1px solid var(--color-border-dark);
}

body.assisted-reading-mode .main-nav {
    background: #f5eeda;
    border-bottom: 1px solid #3a3a3a;
}

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--color-primary);
    font-weight: 700;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    font-family: 'Roboto', sans-serif;
    font-weight: 500;
    transition: color 0.3s ease;
    color: var(--color-text-light);
}

body.dark-mode .nav-links a {
    color: var(--color-text-dark);
}

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

/* Theme Switcher */
.theme-switcher {
    display: flex;
    gap: 10px;
}

.theme-switcher button {
    background: none;
    border: 1px solid var(--color-border-light);
    padding: 8px 15px;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    border-radius: 5px;
    font-size: 0.9rem;
}

body.dark-mode .theme-switcher button {
    border-color: var(--color-border-dark);
    color: var(--color-text-dark);
}

body.light-mode .theme-switcher button {
    color: var(--color-text-light);
}

.theme-switcher button.active {
    background-color: var(--color-primary);
    color: var(--color-background-light);
    border-color: var(--color-primary);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--color-background-light) 0%, var(--color-surface-light) 100%);
}

body.dark-mode .hero {
    background: linear-gradient(135deg, var(--color-background-dark) 0%, var(--color-surface-dark) 100%);
}

.hero-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 30px;
    font-weight: 300;
}

.hero p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.btn {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-background-light);
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.2s ease;
    font-weight: 500;
}

.btn:hover {
    background-color: var(--color-secondary);
    transform: translateY(-2px);
}

/* About Me Section */
.about-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.about-image {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--color-primary);
    box-shadow: 0 8px 20px var(--color-shadow);
}

.about-text {
    max-width: 800px;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 20px;
}

/* Projects Section */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* Blog Section */
.post-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    max-width: 800px;
    margin: 0 auto;
}

.post-item-link {
    display: block;
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: 25px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.dark-mode .post-item-link {
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-dark);
}

.post-item-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--color-shadow);
}

.post-item-link .title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.post-item-link .meta {
    font-size: 0.9rem;
    color: var(--color-text-muted-light);
}

body.dark-mode .post-item-link .meta {
    color: var(--color-text-dark);
}

.view-all-posts-container {
    text-align: center;
    margin-top: 50px;
}


.card {
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border-light);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px var(--color-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

body.dark-mode .card {
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-dark);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--color-primary);
}

.card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.card p {
    font-size: 1rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* Competencies Section */
.competencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.competency-category {
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border-light);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px var(--color-shadow);
}

body.dark-mode .competency-category {
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-dark);
}

.competency-category h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.competency-category ul {
    list-style: none;
    padding: 0;
}

.competency-category li {
    margin-bottom: 10px;
    font-size: 1rem;
}

.card .btn {
    align-self: flex-start;
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* Blog Section */
.post-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    max-width: 800px;
    margin: 0 auto;
}

.post-item-link {
    display: block;
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: 25px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.dark-mode .post-item-link {
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-dark);
}

.post-item-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--color-shadow);
}

.post-item-link .title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.post-item-link .meta {
    font-size: 0.9rem;
    color: var(--color-text-muted-light);
}

body.dark-mode .post-item-link .meta {
    color: var(--color-text-dark);
}

.view-all-posts-container {
    text-align: center;
    margin-top: 50px;
}

/* Footer (New Element) */
.site-footer {
    margin-top: auto; /* Pushes footer to the bottom */
    padding: 40px 20px;
    text-align: center;
    background-color: var(--color-surface-light);
    border-top: 1px solid var(--color-border-light);
    font-size: 0.9rem;
}

body.dark-mode .site-footer {
    background-color: var(--color-surface-dark);
    border-top: 1px solid var(--color-border-dark);
}

.site-footer p {
    margin: 0;
}

.site-footer .social-links {
    margin-bottom: 15px;
}

.site-footer .social-links a {
    color: var(--color-text-light);
    margin: 0 15px;
    font-size: 1rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

body.dark-mode .site-footer .social-links a {
    color: var(--color-text-dark);
}

.site-footer .social-links a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.site-footer p {
    margin-top: 15px;
    margin: 0;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .main-nav .container {
        flex-direction: column;
        gap: 15px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-name {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .about-content {
        flex-direction: column;
    }

    .about-image {
        width: 200px;
        height: 200px;
    }

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

    .card {
        padding: 20px;
    }

    .card h3 {
        font-size: 1.5rem;
    }

    .post-item-link .title {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: 15px;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .theme-switcher {
        flex-direction: column;
        gap: 5px;
    }

    .theme-switcher button {
        width: 100%;
    }
}

/* Side Pane Styles */
.side-pane {
    position: fixed;
    top: 0;
    right: -400px; /* Hidden by default */
    width: 400px;
    height: 100%;
    background-color: var(--color-background-light);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    transition: right 0.4s ease-in-out;
    z-index: 1001;
    overflow-y: auto;
    padding: 20px;
    color: var(--color-text-light);
}

body.dark-mode .side-pane {
    background-color: var(--color-background-dark);
    color: var(--color-text-dark);
}

.side-pane.open {
    right: 0; /* Slide in */
}

.close-pane-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-text-light);
}

body.dark-mode .close-pane-btn {
    color: var(--color-text-dark);
}

.close-pane-btn:hover {
    color: var(--color-primary);
}

.pane-content {
    padding-top: 50px; /* Space for close button */
}

.pane-content .section-title {
    margin-bottom: 30px;
    font-size: 2rem;
}

.pane-section {
    margin-bottom: 40px;
    text-align: center;
}

.pane-section h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.pane-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-primary);
    margin-bottom: 20px;
    box-shadow: 0 4px 10px var(--color-shadow);
}

.pane-section p {
    font-size: 1rem;
    line-height: 1.7;
    max-width: 350px;
    margin: 0 auto;
}

/* Accomplishments list styling inside side pane */
.accomplishments-list {
    list-style: disc;
    text-align: left;
    max-width: 420px;
    margin: 0 auto;
    padding-left: 1.2rem;
}
.accomplishments-list li {
    margin-bottom: 12px;
    line-height: 1.5;
}
.accomplishments-list i {
    margin-right: 10px;
}
.accomplishments-list strong {
    color: var(--color-primary);
}

@media (max-width: 480px) {
    .side-pane {
        width: 100%; /* Full width on small screens */
        right: -100%;
    }
    .side-pane.open {
        right: 0;
    }
    .pane-section p {
        max-width: 90%;
    }
}

/* Left side pane variant (slides in from left) */
.side-pane.left {
    left: -400px;
    right: auto;
    box-shadow: 5px 0 15px rgba(0,0,0,0.15);
    transition: left 0.4s ease-in-out;
}

body.dark-mode .side-pane.left {
    background-color: var(--color-background-dark);
}

.side-pane.left.open {
    left: 0;
}

@media (max-width: 480px) {
    .side-pane.left {
        left: -100%;
    }
    .side-pane.left.open {
        left: 0;
    }
}

/* Move close button to left side for left-pane */
.side-pane.left .close-pane-btn {
    right: auto;
    left: 20px;
}