:root {
    --primary: #2c3e50;
    --secondary: #34495e;
    --accent: #e67e22;
    --background: #f8f9fa;
    --foreground: #333333;
    --card-bg: #ffffff;
    --card-border: #eaeaea;
    --text-light: #f8f9fa;
    --text-dark: #333333;
    --border-radius: 8px;
    --transition-speed: 0.3s;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.dark {
    --primary: #1a2530;
    --secondary: #2c3e50;
    --accent: #f39c12;
    --background: #121212;
    --foreground: #f8f9fa;
    --card-bg: #1e1e1e;
    --card-border: #333333;
    --text-light: #f8f9fa;
    --text-dark: #333333;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--foreground);
    background-color: var(--background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

main {
    flex: 1;
    padding: 40px 0;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.accent-text {
    color: var(--accent);
}

.accent-link {
    color: var(--accent);
    transition: opacity var(--transition-speed);
}

.accent-link:hover {
    opacity: 0.8;
}

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

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    background-color: var(--primary);
    color: var(--text-light);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: background-color var(--transition-speed);
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: var(--text-light);
}

.full-width {
    width: 100%;
}

/* Card */
.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

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

/* Navigation */
.navbar {
    background-color: var(--primary);
    color: var(--text-light);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-link {
    position: relative;
    padding: 5px 0;
    transition: color var(--transition-speed);
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.language-btn {
    background-color: transparent;
    border: 1px solid var(--text-light);
    color: var(--text-light);
    padding: 5px 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.language-btn:hover {
    background-color: var(--text-light);
    color: var(--primary);
}

.theme-btn {
    background-color: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    border-radius: 50%;
    transition: background-color var(--transition-speed);
}

.theme-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.mobile-nav-actions {
    display: none;
    align-items: center;
    gap: 15px;
}

.menu-btn {
    background-color: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 5px;
}

.mobile-menu {
    display: none;
    background-color: var(--primary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px 0;
}

.mobile-nav-link {
    display: block;
    padding: 10px 0;
    color: var(--text-light);
    transition: color var(--transition-speed);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
    color: var(--accent);
}

/* Hero Section */
.hero-section {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 60px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--secondary);
    margin-bottom: 20px;
}

.hero-text {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.profile-image {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--accent);
}

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

/* Section Styles */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50%;
    height: 3px;
    background-color: var(--accent);
}

.about-section, .experience-section, .education-section, .contact-section {
    margin-bottom: 60px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.about-text p {
    margin-bottom: 15px;
}

.skills-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

@media (min-width: 768px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.experience-cards, .education-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.experience-card, .education-card {
    padding: 20px;
}

.experience-header, .education-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 10px;
}

.experience-position, .education-degree {
    font-size: 1.2rem;
    font-weight: 600;
}

.experience-period, .education-period {
    font-weight: 500;
}

.experience-company, .education-institution {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.contact-info p {
    margin-bottom: 20px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-form-container {
    padding: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
    color: var(--foreground);
    transition: border-color var(--transition-speed);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
}

/* Projects Page */
.projects-header {
    margin-bottom: 40px;
}

.projects-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.projects-description {
    font-size: 1.1rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 30px;
}

.project-card {
    height: 100%;
}

.project-link {
    display: block;
    height: 100%;
}

.project-image-container {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-speed);
}

.view-project {
    background-color: var(--accent);
    color: var(--text-light);
    padding: 8px 15px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-card:hover .project-image {
    transform: scale(1.1);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info {
    padding: 20px;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.project-description {
    color: var(--secondary);
    margin-bottom: 15px;
}

.project-meta {
    font-size: 0.9rem;
}

/* Project Detail Page */
.back-link {
    margin-bottom: 30px;
}

.back-to-projects {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    transition: opacity var(--transition-speed);
}

.back-to-projects:hover {
    opacity: 0.8;
}

.project-not-found {
    text-align: center;
    padding: 50px 0;
}

.project-detail-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
}

.project-detail-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.project-detail-text {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.project-detail-info {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: var(--border-radius);
}

.project-detail-subtitle {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.project-detail-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.project-meta-item {
    display: flex;
    flex-direction: column;
}

.meta-label {
    font-weight: 500;
}

.gallery-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.project-gallery {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 15px;
}

.gallery-item {
    position: relative;
    height: 250px;
    overflow: hidden;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.gallery-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-speed);
}

.view-larger {
    background-color: var(--accent);
    color: var(--text-light);
    padding: 5px 10px;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

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

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

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.lightbox.active {
    display: flex;
}

.close-lightbox {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 2010;
}

.lightbox-content {
    position: relative;
    width: 90%;
    max-width: 1000px;
    height: 80vh;
}

.lightbox-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.lightbox-counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: transparent;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    z-index: 2010;
    padding: 10px;
}

.prev-image {
    left: 20px;
}

.next-image {
    right: 20px;
}

/* Footer */
.footer {
    background-color: var(--primary);
    color: var(--text-light);
    padding: 50px 0 20px;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-description {
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: background-color var(--transition-speed);
}

.social-link:hover {
    background-color: var(--accent);
}

.footer-subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.quick-links {
    list-style: none;
}

.quick-links li {
    margin-bottom: 10px;
}

.quick-links a {
    transition: color var(--transition-speed);
}

.quick-links a:hover {
    color: var(--accent);
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* Media Queries */
@media (min-width: 768px) {
    .hero-section {
        flex-direction: row;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .project-detail-content {
        grid-template-columns: 2fr 1fr;
    }
    
    .project-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .project-meta-item {
        flex-direction: row;
        gap: 5px;
    }
    
    .experience-header, .education-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 992px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .project-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .desktop-nav {
        display: none;
    }
    
    .mobile-nav-actions {
        display: flex;
    }
    
    .mobile-menu.active {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .project-detail-title {
        font-size: 2rem;
    }
}