* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
}

body {
    background: linear-gradient(135deg, #f4f6fb, #e9ecf5);
    color: #2c2c2c;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* HEADER */
.header {
    background: #1f2a44;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.header p {
    opacity: 0.85;
}

/* MAIN CONTAINER */
.container {
    flex: 1;
    display: flex;
    gap: 30px;
    padding: 50px 20px;
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
}

/* CARDS */
.card {
    background: white;
    border-radius: 14px;
    padding: 30px;
    width: 320px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.card h2 {
    margin-bottom: 15px;
}

.card p {
    line-height: 1.6;
    margin-bottom: 25px;
    color: #555;
}

/* BUTTONS */
.btn {
    text-align: center;
    padding: 14px;
    border-radius: 8px;
    background: #4f6df5;
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s ease;
}

.btn:hover {
    background: #3d58d8;
}

.btn.secondary {
    background: #e3e7ff;
    color: #2f3fd4;
}

.btn.secondary:hover {
    background: #d4dbff;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    color: #666;
}