:root {
    /* Colors */
    --color-background: #ffffff;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-accent: #0066FF;
    --color-border: #e5e5e5;
    --color-hover: #f5f5f5;
    
    /* Typography */
    --font-primary: 'Space Grotesk', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Container */
    --container-width: 1200px;
    --container-padding: 2rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: var(--spacing-lg) 0;
    margin-top: 80px;
    text-align: center;
}

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

.hero-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero-text h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.hero-image {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    margin-bottom: var(--spacing-md);
    border-radius: 50%;
    overflow: hidden;
}

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

.profile-image:hover {
    filter: none;
}

/* Experience Section */
.experience-content {
    max-width: 800px;
    margin: 0 auto;
}

.experience-section {
    padding-top: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.experience-section h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    font-weight: 600;
}

.experience-list {
    list-style: none;
}

.experience-list li {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    padding-left: 1.5rem;
    position: relative;
}

.experience-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.2rem;
}

.experience-list a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.experience-list a:hover {
    text-decoration: underline;
}

/* Section Styles */
.section {
    padding: var(--spacing-sm) 0;
}

.section-header {
    margin-bottom: var(--spacing-md);
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text);
}

/* Bio Section */
.bio {
    max-width: 800px;
    margin: 0 auto;
}

.bio p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
    text-align: left;
}

.bio p:last-child {
    margin-bottom: 0;
}

/* Timeline Section */
.timeline {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.timeline-section h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.timeline-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.timeline-item {
    padding: var(--spacing-md);
    background: var(--color-hover);
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.timeline-item:hover {
    transform: translateY(-4px);
}

.timeline-item .year {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.timeline-item .position {
    font-size: 1.1rem;
    color: var(--color-text);
}

/* Services Section */
.services {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.service-item {
    padding: var(--spacing-md);
    background: var(--color-hover);
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.service-item:hover {
    transform: translateY(-4px);
}

.service-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.service-item p {
    color: var(--color-text-light);
}

/* Footer */
footer {
    padding: var(--spacing-lg) 0;
    background: var(--color-hover);
    text-align: center;
    color: var(--color-text-light);
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --container-padding: 1.5rem;
    }

    .hero-text h1 {
        font-size: 3rem;
    }

    .timeline {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .services {
        grid-template-columns: 1fr;
    }

    .nav-content {
        height: 60px;
    }

    .nav-links {
        gap: var(--spacing-sm);
    }

    .hero-text h2 {
        font-size: 1.25rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-image {
        width: 150px;
        height: 150px;
        margin-bottom: var(--spacing-md);
    }

    .experience-section h3 {
        font-size: 1.5rem;
    }

    .experience-list li {
        font-size: 1rem;
    }

    .bio p {
        font-size: 1rem;
        margin-bottom: var(--spacing-xs);
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Tab Content */
.tab-content {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tab-content.active {
    display: block;
    opacity: 1;
}

/* Contact Section */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

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

.contact-section h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-weight: 600;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text);
    transition: color 0.2s ease;
}

.contact-item:hover {
    color: var(--color-accent);
}

.contact-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.contact-item span {
    font-size: 1.1rem;
}

/* Services List */
.services-list {
    list-style: none;
}

.services-list li {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    padding-left: 1.5rem;
    position: relative;
}

.services-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.2rem;
}

.services-list li strong {
    display: block;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .contact-section h3 {
        font-size: 1.5rem;
    }

    .services-list li,
    .contact-item span {
        font-size: 1rem;
    }
}

/* Slideshow Styles */
.slideshow-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto 40px;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    background-color: var(--color-background);
}

.slide {
    display: none;
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background-color: var(--color-background);
}

.slide.active {
    display: block;
}

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

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
}

.slide-content h3 {
    margin: 0 0 10px;
    font-size: 24px;
    font-weight: 600;
}

.slide-content p {
    margin: 0;
    font-size: 16px;
    line-height: 1.5;
    opacity: 0.9;
}

.dot-navigation {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.dot.active {
    background-color: white;
}

/* Fade Animation */
.fade {
    animation-name: fade;
    animation-duration: 1s;
}

@keyframes fade {
    from {
        opacity: 0.4;
    }
    to {
        opacity: 1;
    }
}

.slide-content h3 a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.slide-content h3 a:hover {
    color: var(--color-accent);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.project-image {
    height: 220px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.project-content p {
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.project-tech span {
    background-color: #f5f5f5;
    color: var(--color-text);
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    border-radius: 50px;
    font-weight: 500;
}

.project-actions {
    display: flex;
    gap: 1rem;
}

.project-link {
    display: inline-block;
    color: white;
    background-color: var(--color-accent);
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.project-link:hover {
    background-color: #0052cc;
}

.learn-more-btn {
    display: inline-block;
    color: var(--color-accent);
    background-color: transparent;
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    border: 1px solid var(--color-accent);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.learn-more-btn:hover {
    background-color: var(--color-accent);
    color: white;
}

/* Project Modals */
.project-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    overflow-y: auto;
    padding: 2rem 0;
}

.project-modal.active {
    display: block;
}

.modal-content {
    background-color: white;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    color: white;
    cursor: pointer;
    z-index: 10;
    text-shadow: 0 0 3px rgba(0, 0, 0, 0.5);
}

.modal-gallery {
    width: 100%;
    height: 400px;
    overflow: hidden;
    position: relative;
}

.modal-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-details {
    padding: 2rem;
    overflow-y: auto;
}

.modal-details h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.project-description {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.project-features {
    margin-bottom: 1.5rem;
}

.project-features h3, 
.project-tech-stack h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.project-features ul {
    list-style-type: disc;
    padding-left: 1.5rem;
}

.project-features li {
    margin-bottom: 0.5rem;
    color: var(--color-text-light);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tags span {
    background-color: #f5f5f5;
    color: var(--color-text);
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
    border-radius: 50px;
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

.primary-btn:hover {
    background-color: #0052cc;
}

.secondary-btn {
    background-color: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

.secondary-btn:hover {
    background-color: var(--color-accent);
    color: white;
}

/* Responsive adjustments for projects */
@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-image {
        height: 200px;
    }
    
    .modal-content {
        width: 95%;
    }
    
    .modal-gallery {
        height: 250px;
    }
    
    .project-actions {
        flex-direction: column;
    }
    
    .project-links {
        flex-direction: column;
    }
}