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

/* Body */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f7fb;
    color: #333;
    line-height: 1.6;
}

/* Navigation */
nav {
    background: #111827;
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 15px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}

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

/* Header */
header {
    background: linear-gradient(135deg, #2563eb, #111827);

    height: 80vh;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    text-align: center;
    color: white;

    padding: 20px;
}

header h1 {
    font-size: 4rem;
    margin-bottom: 15px;
}

header p {
    font-size: 1.3rem;
    max-width: 700px;
}

/* Sections */
.section {
    padding: 60px 10%;
}

.section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    color: #111827;
}

/* Cards */
.cards {
    display: grid;

    grid-template-columns:
    repeat(auto-fit, minmax(250px, 1fr));

    gap: 25px;
}

/* Card */
.card {
    background: white;

    border-radius: 12px;

    padding: 30px;

    box-shadow: 0 5px 15px rgba(0,0,0,0.1);

    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-8px);
}

/* Card Content */
.card-content h3 {
    margin-bottom: 10px;
    color: #2563eb;
}

/* About */
.about {
    text-align: center;

    background: #e0f2fe;

    border-radius: 12px;

    padding: 40px;
}

/* Footer */
footer {
    background: #111827;
    color: white;

    text-align: center;

    padding: 25px;

    margin-top: 40px;
}

footer a {
    color: #38bdf8;
    text-decoration: none;
}