* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #e9f7f5, #fdf6ec);
    min-height: 100vh;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: #ffffff;
    padding: 35px;
    border-radius: 18px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.login-card h1 {
    margin: 0;
    text-align: center;
    color: #2f6f68;
    font-size: 32px;
}

.login-card p {
    text-align: center;
    margin: 8px 0 30px;
    color: #777;
}

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

.form-group label {
    display: block;
    margin-bottom: 7px;
    color: #444;
    font-weight: bold;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #d8d8d8;
    border-radius: 10px;
    font-size: 15px;
    outline: none;
}

.form-group input:focus {
    border-color: #2f6f68;
}

#btnLogin {
    width: 100%;
    border: none;
    background: #2f6f68;
    color: #ffffff;
    padding: 13px;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    font-weight: bold;
}

#btnLogin:hover {
    background: #265a55;
}

#mensajeLogin {
    margin-top: 15px;
    text-align: center;
    font-size: 14px;
    min-height: 20px;
}

#mensajeLogin.error {
    color: #c0392b;
}

#mensajeLogin.ok {
    color: #2f6f68;
}