body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #e3f0ff 0%, #f9fcff 100%);
    min-height: 100vh;
}

.header {
    background-color: #003366;
    color: #fff;
    padding: 32px 0 24px 0;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.header h1 {
    margin: 0;
    font-size: 2.5rem;
    letter-spacing: 2px;
}

.header p {
    margin: 8px 0 0 0;
    font-size: 1.2rem;
    color: #cce0ff;
}

.login-container {
    position: absolute;
    top: 40px;
    left: 40px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    padding: 32px 28px 24px 28px;
    width: 340px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.login-container h2 {
    margin: 0 0 18px 0;
    font-size: 1.3rem;
    color: #003366;
    font-weight: 600;
}

.form-group {
    margin-bottom: 18px;
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 1rem;
    color: #003366;
}

.form-group input {
    width: 2in;
    max-width: 100%;
    padding: 8px 10px;
    font-size: 1rem;
    border: 1px solid #b0c4de;
    border-radius: 5px;
    outline: none;
    transition: border 0.2s;
}

.form-group input:focus {
    border: 1.5px solid #0077cc;
}

.login-btn {
    background: #0077cc;
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: 10px 28px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.2s;
}

.login-btn:hover {
    background: #005fa3;
}

.login-error {
    color: #c00;
    margin-top: 10px;
    display: none;
}

.main-visual {
    margin: 120px auto 0 auto;
    max-width: 700px;
    text-align: center;
}

.main-visual img {
    width: 120px;
    margin-bottom: 18px;
}

.main-visual h2 {
    font-size: 2rem;
    color: #003366;
    margin-bottom: 10px;
}

.main-visual p {
    font-size: 1.1rem;
    color: #444;
    margin-bottom: 0;
}

.join-link {
    color: #0077cc;
    text-decoration: underline;
}

@media (max-width: 700px) {
    .login-container {
        position: static;
        margin: 32px auto 0 auto;
    }
    .main-visual {
        margin-top: 32px;
    }
}

.dashboard-container {
    max-width: 500px;
    margin: 60px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    padding: 32px 28px 24px 28px;
}

.account-section {
    margin-bottom: 28px;
}

.account-section h3 {
    margin-bottom: 8px;
    color: #003366;
}

.account-details {
    font-size: 1.1rem;
    color: #222;
    margin-bottom: 8px;
}

.logout-btn {
    background: #0077cc;
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: 10px 28px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.2s;
}

.logout-btn:hover {
    background: #005fa3;
}