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

:root {
    --primary-color: #2563EB;
    --secondary-color: #DAA520;
    --text-dark: #1a202c;
    --text-light: #4a5568;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #48bb78;
    --danger-color: #f56565;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}


[data-theme="dark"] {
    --text-dark: #f7fafc;
    --text-light: #cbd5e0;
    --bg-light: #1a202c;
    --bg-white: #0B1E36;
    --border-color: #4a5568;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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


.navbar {
    background-color: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    height: 50px;
    display: flex;
    align-items: center;
}

.logo img {
    height: 150%;
    width: auto;
    max-width: 150px;
    object-fit: contain;
}

.logo .logo-dark {
    display: block;
}

.logo .logo-light {
    display: none;
}

[data-theme="dark"] .logo .logo-dark {
    display: none;
}

[data-theme="dark"] .logo .logo-light {
    display: block;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.language-selector {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.lang-btn {
    background: none;
    border: 2px solid transparent;
    cursor: pointer;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    padding: 0;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
}

.lang-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.lang-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

.lang-btn.active {
    border-color: var(--primary-color);
    opacity: 1;
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.3);
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: var(--text-dark);
    transition: var(--transition);
    background-color: var(--bg-light);
}

.theme-toggle:hover {
    background-color: var(--border-color);
    transform: rotate(20deg);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    position: absolute;
    transition: var(--transition);
}

.theme-toggle .sun-icon {
    opacity: 1;
    transform: rotate(0deg);
}

.theme-toggle .moon-icon {
    opacity: 0;
    transform: rotate(-180deg);
}

[data-theme="dark"] .theme-toggle .sun-icon {
    opacity: 0;
    transform: rotate(180deg);
}

[data-theme="dark"] .theme-toggle .moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}


.hero {
    padding: 120px 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content .subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-content .description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.3);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

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

.profile-photo {
    width: 300px;
    height: 300px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: var(--shadow);
    animation: float 3s ease-in-out infinite;
    border: 5px solid white;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}


.about {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.about h2,
.projects h2,
.skills h2,
.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.about-content p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

.highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.highlight-item {
    background: #020024;
    background: linear-gradient(90deg,rgba(2, 0, 36, 1) 0%, rgba(22, 30, 46, 1) 50%, rgba(29, 95, 153, 1) 100%);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

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

.highlight-item h3 {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

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


.projects {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.project-image {
    height: 200px;
    overflow: hidden;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    transition: var(--transition);
}

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

.project-info {
    padding: 2rem;
}

.project-info h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.project-info p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tags span {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: var(--primary-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.skills {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.skill-category {
    background-color: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-top: 3px solid var(--primary-color);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.skill-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    text-align: center;
    font-size: 0.95rem;
    transition: var(--transition);
}

.skill-tag:hover {
    transform: translateX(5px);
}

.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
}

.contact-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background-color: white;
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border: 2px solid transparent;
}

.social-btn i {
    margin-right: 10px; 
}

.social-btn svg {
    width: 24px;
    height: 24px;
    transition: var(--transition);
    fill: var(--text-dark);
}

.social-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.social-btn:hover svg {
    fill: var(--primary-color);
}


[data-theme="dark"] .social-btn {
    background-color: #2d3748;
    color: #cbd5e0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .social-btn svg {
    fill: #cbd5e0;
}

[data-theme="dark"] .social-btn:hover {
    background-color: #4a5568;
}

[data-theme="dark"] .social-btn:hover svg {
    fill: var(--primary-color);
}


.footer {
    background-color: #1a202c;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
    transition: background-color 0.3s ease, color 0.3s ease;
    border-top: 1px solid var(--border-color);
}

[data-theme="dark"] .footer {
    background-color: #0f1419;
    border-top-color: #4a5568;
}


@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        flex-direction: column;
        background-color: var(--bg-white);
        padding: 2rem;
        gap: 1rem;
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

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

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .avatar-placeholder {
        width: 200px;
        height: 200px;
    }
    
    .profile-photo {
        width: 200px;
        height: 200px;
    }

    .highlights {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .about h2,
    .projects h2,
    .skills h2,
    .contact h2 {
        font-size: 2rem;
    }
}


@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content .subtitle {
        font-size: 1rem;
    }

    .hero-content .description {
        font-size: 1rem;
    }

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

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

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

    .social-links {
        gap: 1rem;
    }

    .social-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .social-btn svg {
        width: 20px;
        height: 20px;
    }

    .about h2,
    .projects h2,
    .skills h2,
    .contact h2 {
        font-size: 1.5rem;
    }

    .nav-links {
        top: 60px;
        padding: 1rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .language-selector {
        gap: 0.5rem;
    }

    .lang-btn {
        width: 30px;
        height: 30px;
    }
}