:root {
    --bg-color: #0f172a;
    --text-color: #e2e8f0;
    --primary-color: #38bdf8;
    --secondary-color: #0f172a;
    --border-color: #1e293b;
    --card-bg: #1e293b;
    --hover-color: #189cd8;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

a:hover {
    color: var(--hover-color);
}

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

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

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

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

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

header {
    position: sticky;
    top: 0;
    width: 100vw; 
    background-color: var(--bg-color);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.nav-container {
    max-width: none;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.cv {
    font-size: 1rem;
    font-weight: 600;
    padding: 0.4rem 0.6rem;
    color: var(--primary-color);
    border-radius: 0.5rem;
    border: 2px solid var(--primary-color);
    transition: all 0.3s ease;
    display: inline-block;
}

.cv a {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

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

.cv:hover a {
    color: var(--text-color); 
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-color);
    transition: color 0.3s ease;
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.menu-toggle span {
    height: 3px;
    width: 100%;
    background-color: var(--text-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.hero {
    padding: 5rem 0;
    display: flex;
    align-items: center;
    min-height: calc(100vh - 100px);
}

.hero-image {
    display: inline-block;
    perspective: 1000px; 
}

.hero-image img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
    transition: transform 1s ease-in-out;
}

.hero-image:hover img {
    transform: rotateY(360deg); 
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 700px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-color);
}

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

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

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

.about, .projects, .skills, .contact {
    padding: 5rem 0;
}

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

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    text-align: center;
}

.about-image img {
    max-width: 100%;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 0.8rem;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.project-description {
    margin-bottom: 1.5rem;
    color: #cbd5e1;
}

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

.tag {
    background-color: var(--bg-color);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
}

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

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.skills-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.skill-category {
    margin-bottom: 2rem;
}

.skill-category-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1.5rem;
}

.skill-item {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.8rem;
    text-align: center;
    transition: transform 0.3s ease;
    width: 180px;
    height: 180px;
    perspective: 1000px;
    cursor: pointer;
}

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

.skill-card {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s ease-in-out;
}

.skill-item.flipped .skill-card {
    transform: rotateY(180deg);
}

.skill-face {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-radius: 0.8rem;
    background-color: var(--card-bg);
    color: var(--text-color);
    backface-visibility: hidden;
}

.skill-front {
    z-index: 2;
}

.skill-back {
    transform: rotateY(180deg);
}

.skill-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.skill-name {
    font-weight: 600;
}

.contact-container {
    display: flex;
    gap: 4rem;
}

.contact-info, .contact-form {
    flex: 1;
}

.contact-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.contact-description {
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--card-bg);
    border-radius: 0.8rem;
    transition: transform 0.3s ease;
}

.contact-link:hover {
    transform: translateX(10px);
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-color);
    font-family: inherit;
}

.form-textarea {
    height: 150px;
    resize: vertical;
}

.error-message {
    color: red;
    font-size: 0.9em;
    margin-top: 5px;
}

footer {
    background-color: var(--card-bg);
    padding: 2rem 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

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

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

.footer-text {
    color: #94a3b8;
}

.scroll-to-top {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    text-align: center;
    position: fixed;
    bottom: 30px;
    right: 30px;
    color: #fff;
    font-size: 1.5rem;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 0;
    visibility: hidden;
}

.scroll-to-top:hover {
    background-color: var(--hover-color);
    color: var(--text-color);
    transform: translateY(-5px);
}

body.scroll-active .scroll-to-top {
    opacity: 1;
    visibility: visible;
}

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

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .about-content {
        flex-direction: column-reverse;
        gap: 3rem;
    }

    .contact-container {
        flex-direction: column;
    }
}

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

    .nav-links {
        position: fixed;
        top: 0;
        right: -250px;
        width: 250px;
        height: 100vh;
        background-color: var(--secondary-color);
        flex-direction: column;
        padding: 80px 2rem;
        z-index: 100;
        transition: right 0.3s ease;
    }

    .nav-links.active {
        right: 0;
    }

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

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

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

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

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

.logo{
    width: 40px;
    height: 40px;
    object-fit: cover;
}