:root {
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --text-color: #1f2937;
    --background-color: #ffffff;
    --card-background: #f3f4f6;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --primary-text: #1f2937;
    --secondary-text: #4b5563;
    --accent-color: #e5e7eb;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
}

[data-theme="dark"] {
    --text-color: #f3f4f6;
    --background-color: #1f2937;
    --card-background: #374151;
    --primary-text: #f3f4f6;
    --secondary-text: #d1d5db;
    --accent-color: #4b5563;
    --box-shadow: 0 4px 6px -1px rgb(255 255 255 / 0.1);
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: background-color 0.3s ease;
    position: relative;
    overflow-x: hidden;
}

/* Add theme-specific colors for static graph */
[data-theme="dark"] .node {
    fill: var(--primary-color);
    stroke: var(--background-color);
}

/* Network Graph Background */
.network-graph {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.node {
    transition: transform 0.3s ease, fill 0.3s ease;
    fill: var(--primary-color);
    stroke: var(--background-color);
    stroke-width: 2;
}

.node:hover {
    transform: scale(1.2);
    fill: var(--secondary-color);
}

.connection {
    stroke: var(--primary-color);
    stroke-width: 1;
    stroke-linecap: round;
    stroke-dasharray: 4;
    animation: dash 3s linear infinite;
    opacity: 0.5;
}

@keyframes dash {
    0% {
        stroke-dashoffset: 4;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

/* Add theme-specific colors for network graph */
[data-theme="dark"] .node {
    fill: var(--primary-color);
    stroke: var(--background-color);
}

[data-theme="dark"] .connection {
    stroke: var(--primary-color);
}

.graph-svg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.graph-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: draw 20s linear infinite;
    stroke: var(--primary-color);
}

@keyframes draw {
    0% {
        stroke-dashoffset: 1000;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

/* Add theme-specific colors for graph */
[data-theme="dark"] .graph-line {
    stroke: var(--primary-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background-color: var(--background-color);
    box-shadow: var(--box-shadow);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--background-color) 100%);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
    font-weight: 800;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero-content p {
    margin-bottom: 2rem;
    color: var(--secondary-text);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.2s ease;
    margin: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
}

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

.btn.secondary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

/* Sections */
section {
    padding: 6rem 2rem;
}

section h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: var(--text-color);
}

/* Experience Section */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.experience-item {
    background: var(--card-background);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.experience-item:hover {
    transform: translateY(-5px);
}

.experience-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.location {
    display: block;
    color: var(--secondary-text);
    font-size: 0.9rem;
    opacity: 0.8;
}

.experience-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.experience-item li {
    margin-bottom: 0.75rem;
    color: var(--secondary-text);
    padding-left: 1.5rem;
    position: relative;
}

.experience-item li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.experience-details {
    list-style: none;
    padding: 0;
    margin: 0;
}

.experience-details li {
    margin-bottom: 0.75rem;
    color: var(--secondary-text);
    padding-left: 1.5rem;
    position: relative;
}

.experience-details li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* About Section */
.about-content {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.contact-content {
    display: flex;
    gap: 2rem;
    align-items: center;
    flex-direction: column;
}

.email-link {
    margin-bottom: 2rem;
}

.email-link a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

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

.email-link a i {
    font-size: 1.2rem;
}

.skills {
    margin-top: 2rem;
}

.skill-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.skill-category {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.skill-category h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tags span {
    background: var(--background-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    color: var(--secondary-text);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.skill-tags span:hover {
    background: var(--primary-color);
    color: var(--text-color);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

/* Projects Section */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* Contact Section */
.contact-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

#contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#contact-form input,
#contact-form textarea {
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-family: inherit;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-icon {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-icon:hover {
    color: var(--primary-color);
}

/* Footer */
footer {
    padding: 2rem;
    text-align: center;
    background-color: var(--background-color);
}

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

section {
    animation: fadeIn 0.8s ease forwards;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .about-content {
        flex-direction: column;
    }
}