html, body {
    margin: 0;
    padding: 0;
}

body {
    background-color: #0b0b0f;
    color: #f4f4f7;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.55;
}

.site-header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: rgba(15, 15, 30, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
}

.brand h1 {
    margin: 0;
    font-size: 2rem;
    letter-spacing: 0.05em;
}

.main-nav {
    display: flex;
    gap: 1rem;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

.nav-toggle .hamburger {
    width: 24px;
    height: 2px;
    background: #f4f4f7;
    display: block;
    position: relative;
}

.nav-toggle .hamburger::before,
.nav-toggle .hamburger::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    left: 0;
    transition: transform 0.25s ease;
}

.nav-toggle .hamburger::before {
    top: -8px;
}

.nav-toggle .hamburger::after {
    top: 8px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: translateY(-8px) rotate(-45deg);
}

.nav-link {
    padding: 0.5rem 0.9rem;
    font-weight: 600;
    border-radius: 0.35rem;
    color: #f4f4f7;
    transition: background 150ms ease, color 150ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
    color: #f4f4f7;
    background: rgba(255, 255, 255, 0.12);
}

main {
    max-width: 920px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

@media (max-width: 720px) {
    .site-header {
        padding: 1rem;
    }

    .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        right: 1rem;
        left: 1rem;
        background: rgba(15, 15, 30, 0.95);
        border-radius: 0.75rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0.5rem 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .main-nav.open {
        max-height: 480px;
    }

    .nav-link {
        width: 100%;
        padding: 0.75rem 1rem;
    }
}

.hello {
    text-align: center;
    margin-top: 3.5rem;
}

.hello p {
    margin: 0 auto;
    max-width: 67rem;
    font-size: 5.0rem;
    -webkit-text-fill-color: transparent;
    background: linear-gradient(45deg, #ff7e5f, #00d4ff);
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

#about {
    text-align: center;
    margin-top: 10.5rem;
}
.hello .profile-pic {
    width: 400px;
    height: 400px;
    display: block;
    margin: 1rem auto 1.5rem;
    border-radius: 50%;
    border: 10px solid linear-gradient(45deg, #ff7e5f, #00d4ff);
    object-fit: cover;
}
#about :hover {
    color: #fdfdfd9c;
    background-color: #0b0b0faf;
}
#about h2 {
    font-size: 3rem;
    margin-bottom: 0.75rem;
}

#about p {
    max-width: 67rem;
    font-size: 1.5rem;
}
.about-content {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}
.languages, .education {
    flex: 1;
    min-width: 250px;
}
#about ul :hover {
    color: #3da3e79c;
}
 #about ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    list-style: none;
    padding: 1rem;
    margin: 1.5rem auto 0;
    max-width: 40rem;
    border-radius: 0.5rem;
 }
 #about ul li {
    text-align: center;
    font-size: 1.5rem;
    color: #3da3e7;
    padding: 0.5rem 1rem;
    background-color: rgba(28, 51, 156, 0.8);
    border-radius: 0.5rem;
 }

 #about h3{ 
    text-align: center;
    margin-top: 2rem;
     font-size: 2rem;
      color: #3da3e7;
 }

 #about .education ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    list-style: none;
    padding: 1rem;
    margin: 1.5rem auto 0;
    max-width: 40rem;
    border-radius: 0.5rem;
 }
#about h4{
    font-size: 1.5rem;
    color: #3da3e7;
}

#projects .project-list :hover {
    color: #ffffff86;
    background-color: #0b0b0faf;
}
#projects {
    margin-top: 10rem;
}
#projects h2 {
    margin-bottom: 0.75rem;
        font-size: 3rem;
        text-align: center;
        color: #ffffff;
}
#projects .project-list {
    display: grid;
    gap: 1.5rem;
}
#projects .project-card {
    padding: 1.5rem;
    background: rgba(15, 15, 30, 0.95);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: transform 150ms ease, box-shadow 150ms ease;
}
.project-link {
    display: inline-block;
    margin-top: 1rem;
    color: #00d4ff;
    text-decoration: none;
    font-weight: 600;
}
.project-link:hover {
    text-decoration: underline;
}
#contact {
    text-align: center;
    margin-top: 10rem;
}
#contact h2 {
    margin-bottom: 0.75rem;
    font-size: 3rem;
    text-align: center;
    color: #ffffff;
}
#contact p {
    font-size: 1.5rem;
}
#contact a {
    color: #00d4ff;
    text-decoration: none;
}
#contact a:hover {
    text-decoration: underline;
}