:root {
    --bg: #0f172a;
    --card-bg: #1e293b;
    --accent: #38bdf8;
    --text: #f1f5f9;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    scroll-behavior: smooth;
}

nav {
    display: flex;
    justify-content: space-between;
    padding: 20px 10%;
    background: rgba(15, 23, 42, 0.9);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 20px; }
nav ul li a { color: var(--text); text-decoration: none; transition: 0.3s; }
nav ul li a:hover { color: var(--accent); }

.hero {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 100px 10%;
    min-height: 80vh;
}

.hero-img img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 5px solid var(--accent);
    object-fit: cover;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.5);
}

h1 span { color: var(--accent); }

.skills-container, .project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px 10%;
}

.skill-card, .project-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #334155;
    transition: transform 0.3s;
}

.skill-card:hover { transform: translateY(-10px); }

.btn {
    display: inline-block;
    margin-top: 10px;
    color: var(--accent);
    text-decoration: none;
    font-weight: bold;
}