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

body {
    font-family: 'Segoe UI', Roboto, sans-serif;
    background: #0f172a;
    color: #f1f5f9;
    line-height: 1.6;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    position: sticky;
    top: 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

header h1 {
    font-size: 1.5rem;
    font-weight: bold;
    color: #38bdf8;
}

header nav a {
    margin-left: 2rem;
    text-decoration: none;
    color: #f1f5f9;
    font-weight: 500;
    transition: color 0.3s;
}

header nav a:hover {
    color: #38bdf8;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 25px;
    height: 18px;
    cursor: pointer;
}

.hamburger span {
    height: 3px;
    width: 100%;
    background: #f1f5f9;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translateY(10px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-10px);
}

section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: auto;
}

.hero {
    text-align: center;
    padding: 4rem 2rem;
}

.hero .logo {
    height: 500px;
    width: 500px;
}

.hero h2 {
    font-size: 3rem;
    margin-top: -100px;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #94a3b8;
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background: #1e293b;
    border-radius: 1rem;
    padding: 1.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

.card a {
    color: #38bdf8;
    text-underline: none;
    text-decoration: none;
}

.card h3 {
    margin-bottom: 0.5rem;
    color: #38bdf8;
}
.card p {
    color: white;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, #38bdf8, #6366f1);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 9999px;
    font-weight: bold;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-top: 10px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(56, 189, 248, 0.4);
}

footer {
    text-align: center;
    padding: 2rem;
    color: #94a3b8;
    border-top: 1px solid #1e293b;
}

footer a {
    color: #009fd2;
    text-decoration: none;
    margin: 0 0.5rem;
}

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

.sr-only {
    position: absolute;
    left: -9999px;
}