/* version del archivo 1 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0E1A24;
    background-image: radial-gradient(circle at 50% 0%, #16283A 0%, #0E1A24 60%);
    font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
    padding: 24px;
}

.contenedor-login {
    width: 100%;
    max-width: 380px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.marca {
    text-align: center;
    margin-bottom: 32px;
}

.marca img {
    max-width: 140px;
    margin-bottom: 12px;
}

.marca h1 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 22px;
    font-weight: 600;
    color: #E8EDF2;
    letter-spacing: 0.3px;
}

.marca p {
    font-size: 13px;
    color: #6B8299;
    margin-top: 4px;
}

.tarjeta {
    width: 100%;
    background: #14232F;
    border: 1px solid #223447;
    border-radius: 6px;
    padding: 32px 28px;
}

.campo {
    margin-bottom: 18px;
}

.campo label {
    display: block;
    font-size: 13px;
    color: #93A4B5;
    margin-bottom: 6px;
}

.campo input {
    width: 100%;
    padding: 11px 12px;
    background: #0E1A24;
    border: 1px solid #2A3D50;
    border-radius: 4px;
    color: #E8EDF2;
    font-size: 14px;
}

.campo input:focus {
    outline: none;
    border-color: #3E7CA6;
}

.error {
    background: #3A1B1F;
    border: 1px solid #6B2B32;
    color: #E8A5AC;
    font-size: 13px;
    padding: 10px 12px;
    border-radius: 4px;
    margin-bottom: 18px;
}

.btn-ingresar {
    width: 100%;
    padding: 12px;
    background: #2C5F8A;
    border: none;
    border-radius: 4px;
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.btn-ingresar:hover {
    background: #35709F;
}

@media (max-width: 420px) {
    .tarjeta {
        padding: 24px 20px;
    }
}