:root {
    --bg-primary: #0a192f;
    --bg-secondary: #112240;
    --bg-light: #1a2b4a;
    --text-primary: #e6f1ff;
    --text-secondary: #8892b0;
    --text-tertiary: #a8b2d1;
    --accent-primary: #64ffda;
    --accent-secondary: #5ce1e6;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-primary);
    color: var(--text-secondary);
    line-height: 1.7;
    overflow-x: hidden;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-logo:hover {
    color: var(--accent-secondary);
}

.nav-menu {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    color: var(--text-tertiary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--accent-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(9px, 9px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 2rem;
}

.hero-content {
    max-width: 900px;
}

.hero-image-container {
    margin-bottom: 2rem;
    text-align: center;
}

.hero-profile-img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-primary);
    box-shadow: 0 0 20px rgba(100, 255, 218, 0.3);
    transition: var(--transition);
}

.hero-profile-img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(100, 255, 218, 0.5);
}

.hero-greeting {
    color: var(--accent-primary);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--text-tertiary);
    margin-bottom: 2rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-block;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: rgba(100, 255, 218, 0.1);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--text-tertiary);
    border: 2px solid var(--text-tertiary);
}

.btn-outline:hover {
    background: rgba(168, 178, 209, 0.1);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(20px); }
}

.section {
    padding: 6rem 2rem;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 4rem;
    gap: 1rem;
}

.section-number {
    font-size: 1.2rem;
    color: var(--accent-primary);
    font-weight: 600;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--text-primary);
    font-weight: 700;
    white-space: nowrap;
}

.title-line {
    flex: 1;
    height: 1px;
    background: var(--bg-light);
    margin-left: 1rem;
}

.about-content {
    max-width: 900px;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.about-text strong {
    color: var(--text-tertiary);
    font-weight: 600;
}

.highlight-text {
    color: var(--accent-primary);
    font-style: italic;
    margin-top: 2rem;
}

.about-stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.skill-category {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.skill-category h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

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

.skill-list li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    font-size: 1.05rem;
    position: relative;
    padding-left: 1.5rem;
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.projects-grid {
    display: grid;
    gap: 3rem;
}

.project-card {
    background: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid var(--bg-light);
    position: relative;
}

.section-alt .project-card {
    background: var(--bg-primary);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.project-number {
    font-size: 3rem;
    font-weight: 700;
    color: rgba(100, 255, 218, 0.1);
    position: absolute;
    top: 1.5rem;
    right: 2rem;
}

.project-title {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.05rem;
}

.project-tech {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.project-tech span {
    font-size: 0.85rem;
    color: var(--accent-primary);
    background: rgba(100, 255, 218, 0.1);
    padding: 0.4rem 1rem;
    border-radius: 20px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.project-link:hover {
    gap: 0.75rem;
}

.project-link svg {
    transition: var(--transition);
}

.projects-footer {
    text-align: center;
    margin-top: 3rem;
    font-size: 1.1rem;
}

.projects-footer a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.projects-footer a:hover {
    text-decoration: underline;
}

.github-stats {
    margin-top: 4rem;
    text-align: center;
}

.stats-title {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    font-weight: 600;
}

.github-contribution {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--bg-light);
}

.contribution-chart {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-intro {
    font-size: 1.15rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
    line-height: 1.8;
}

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

.contact-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    text-decoration: none;
    border: 1px solid transparent;
}

.section-alt .contact-card {
    background: var(--bg-primary);
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.contact-icon {
    color: var(--accent-primary);
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.contact-card h4 {
    color: var(--text-primary);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer {
    background: var(--bg-secondary);
    padding: 3rem 2rem;
    border-top: 1px solid var(--bg-light);
}

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

.footer-content p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.footer-tech {
    color: var(--accent-primary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-social a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--accent-primary);
    transform: translateY(-3px);
}

.footer-copyright {
    font-size: 0.85rem;
    opacity: 0.7;
}

.fade-in {
    animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in-section {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        padding: 2rem 0;
        border-top: 1px solid var(--bg-light);
        gap: 2rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .section-header {
        flex-wrap: wrap;
    }

    .title-line {
        display: none;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .about-stats {
        justify-content: center;
    }

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

@media (max-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }

    .section {
        padding: 4rem 1.5rem;
    }

    .hero {
        padding: 0 1.5rem;
    }

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

    .hero-title {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

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

    .project-number {
        font-size: 2rem;
        top: 1rem;
        right: 1rem;
    }
}





.hero {
    padding-top: 80px; 
}


@media (max-width: 968px) {
    .hero {
        padding-top: 70px; 
    }
}

@media (max-width: 640px) {
    .hero {
        padding-top: 80px;
        min-height: calc(100vh - 80px);
    }
    
    .hero-image-container {
        margin-top: 1rem; 
    }
    
    .hero-profile-img {
        width: 150px; 
        height: 150px;
    }
}


.navbar {
    height: 80px; 
}

.nav-container {
    height: 100%;
}