body {
    font-family: 'Segoe UI', 'Meiryo', sans-serif;
    background: #f7f7fa;
    margin: 0;
    padding: 0;
}

main {
    max-width: 400px;
    margin: 60px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 32px 24px;
    text-align: center;
}

.logo {
    width: 70%;
    height: auto;
    margin: 0 auto 56px;
    display: block;
}

h1 {
    margin-bottom: 16px;
    color: #2d3e50;
    font-size: 1.7em;
    letter-spacing: 0.05em;
}

p {
    color: #555;
    font-size: 1em;
    margin-bottom: 32px;
}

.choice-buttons {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.btn {
    display: block;
    padding: 14px 0;
    border-radius: 12px;
    font-size: 1.1em;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.2s, color 0.2s;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.business-btn {
    background: orange;
    color: #fff;
}

.business-btn:hover {
    background: darkorange;
}

.student-btn {
    background: orange;
    color: #fff;
}

.student-btn:hover {
    background: darkorange;
}

.login-links {
    margin-top: 56px;
}

.login-btn {
    background: #fff;
    color: #007bff;
    border: 2px solid #007bff;
    margin-top: 0;
}

.login-btn:hover {
    background: #007bff;
    color: #fff;
}