:root {
    --bg: #0a0a0a;
    --primary: #007cf0;
    --secondary: #00dfd8;
    --text: #ffffff;
    --card: #161616;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
}

header {
    padding: 20px 10%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: #888;
    transition: 0.3s;
}

nav a:hover {
    color: #fff;
}

.hero {
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

h1 {
    font-size: 4rem;
}

.gradient-text {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 50px 10%;
}

.card {
    background: var(--card);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid #333;
}

.card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    transition: 0.3s;
}

.btn-primary {
    background: var(--primary);
    padding: 12px 25px;
    border-radius: 8px;
    color: white;
    text-decoration: none;
}

.alert {
    padding: 15px;
    text-align: center;
    background: var(--secondary);
    color: black;
}

footer {
    text-align: center;
    padding: 40px;
    border-top: 1px solid #222;
}