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

body {
    font-family: Arial, sans-serif;
    background: #f5f7fa;
    color: #222;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: auto;
}

/* Header */

.header {
    background: #172554;
    color: white;
    padding: 20px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 24px;
}

.header nav a {
    color: white;
    text-decoration: none;
    margin-left: 25px;
}

/* Signup section */

.signup-section {
    padding: 70px 0;
}

.signup-card {
    background: white;
    max-width: 500px;
    margin: auto;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.signup-card h2 {
    margin-bottom: 10px;
}

.signup-card p {
    margin-bottom: 25px;
    color: #555;
}

/* Form */

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 7px;
    font-weight: bold;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 15px;
}

button {
    width: 100%;
    padding: 13px;
    border: none;
    border-radius: 5px;
    background: #172554;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background: #243b7a;
}

/* Success message */

.success-message {
    margin-top: 20px;
    color: green;
    font-weight: bold;
}

/* About section */

.about-section {
    background: white;
    padding: 80px 0 250px;
}

.about-section h2 {
    margin-bottom: 20px;
}

.about-section p {
    margin-bottom: 25px;
    color: #555;
}